Document ID: USCG-1999-5150-0025
Agency: uscg
Document Type: Rule
Title: FR:  Marine Vapor Control Systems (Federal Register Publication)
Posted Date: 2013-07-16T04:00Z

[Federal Register Volume 78, Number 136 (Tuesday, July 16, 2013)]
[Rules and Regulations]
[Pages 42595-42651]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-15808]

[[Page 42595]]

Vol. 78

Tuesday,

No. 136

July 16, 2013

Part II

Department of Homeland Security

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Coast Guard

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33 CFR Parts 154, 155, and 156

46 CFR Parts 35 and 39

Marine Vapor Control Systems; Final Rule

  Federal Register / Vol. 78 , No. 136 / Tuesday, July 16, 2013 / Rules 
and Regulations  

[[Page 42596]]

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DEPARTMENT OF HOMELAND SECURITY

Coast Guard

33 CFR Parts 154, 155, and 156

46 CFR Parts 35 and 39

[USCG-1999-5150]
RIN 1625-AB37

Marine Vapor Control Systems

AGENCY: Coast Guard, DHS.

ACTION: Final rule.

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SUMMARY: The Coast Guard is revising existing safety regulations for 
facility and vessel vapor control systems (VCSs) to promote maritime 
safety and marine environmental protection. The revisions promote safe 
VCS operation in an expanded range of activities now subject to current 
Federal and State environmental requirements, reflect industry advances 
in VCS technology, and codify the standards for the design and 
operation of a VCS at tank barge cleaning facilities. They increase 
operational safety by regulating the design, installation, and use of 
VCSs, but they do not require anyone to install or use VCSs.

DATES: This final rule is effective August 15, 2013, except as 
additional collection of information requirements that appear in 
several regulations added or revised by this rule and which have not 
yet been approved by the Office of Management and Budget (OMB) may not 
be enforced by the Coast Guard pending OMB approval which, if granted, 
will be noted by the Coast Guard in a subsequent Federal Register 
document. The incorporation by reference of certain publications listed 
in the rule is approved by the Director of the Federal Register as of 
August 15, 2013.

ADDRESSES: Comments and material received from the public, as well as 
documents mentioned in this preamble as being available in the docket, 
are part of docket USCG-1999-5150 and are available for inspection or 
copying at the Docket Management Facility (M-30), U.S. Department of 
Transportation, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. You may also find this 
docket on the Internet by going to http://www.regulations.gov, 
inserting USCG-1999-5150 in the ``Keyword'' box, and then clicking 
``Search.''

FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, 
call or email LT Jodi Min, Office of Design and Engineering Standards, 
U.S. Coast Guard; telephone 202-372-1418, email Jodi.J.Min@uscg.mil. If 
you have questions on viewing or submitting material to the docket, 
call Renee V. Wright, Program Manager, Docket Operations, telephone 
202-366-9826.

SUPPLEMENTARY INFORMATION:

Table of Contents for Preamble

I. Abbreviations
II. Regulatory History, Basis, and Purpose
III. Background
IV. Discussion of Comments and Changes
V. Incorporation by Reference
VI. Regulatory Analyses
    A. Regulatory Planning and Review
    B. Small Entities
    C. Assistance for Small Entities
    D. Collection of Information
    E. Federalism
    F. Unfunded Mandates Reform Act
    G. Taking of Private Property
    H. Civil Justice Reform
    I. Protection of Children
    J. Indian Tribal Governments
    K. Energy Effects
    L. Technical Standards
    M. Environment

I. Abbreviations

API American Petroleum Institute
ASTM ASTM International
CAA 90 U.S. Clean Air Act Amendments of 1990
CE Certifying entity
CFR Code of Federal Regulations
COTP Captain of the Port
CTAC Chemical Transportation Advisory Committee
DHS Department of Homeland Security
EPA U.S. Environmental Protection Agency
IED Inerting, enriching, or diluting
MOCC Minimum oxygen concentration for combustion
MSC Coast Guard Marine Safety Center
NEPA National Environmental Policy Act of 1969
NFPA National Fire Protection Association
NPRM Notice of proposed rulemaking
OMB Office of Management and Budget
PIC Person-in-charge
SBA Small Business Administration
TBCF Tank barge cleaning facility
UL Underwriters Laboratories, Inc.
USCG United States Coast Guard
VCS Vapor control system
VOC Volatile organic compound

II. Regulatory History, Basis, and Purpose

    The Coast Guard published a notice of proposed rulemaking (NPRM) on 
this subject in the Federal Register, 75 FR 65152 (Oct. 21, 2010). The 
legal basis for this final rule is 42 U.S.C. 7511b(f)(2), 33 U.S.C. 
1231, and 46 U.S.C. 3703. Under 42 U.S.C. 7511b(f)(2), enacted as part 
of the Clean Air Act Amendments of 1990 (CAA 90), the Secretary of the 
Department in which the Coast Guard is operating must regulate the 
safety of equipment and operations used to control vapor emissions. 
Under 33 U.S.C. 1231, the Secretary may issue regulations to implement 
port and waterways safety requirements, among which are the 
requirements in 33 U.S.C. 1225 to act as necessary to prevent damage to 
land and structures on or along U.S. navigable waters and to protect 
these navigable waters and their resources. Under 46 U.S.C. 3703, the 
Secretary must regulate vessels and their liquid bulk dangerous cargo 
operations to protect life, property, and the marine environment 
against the risk of casualty or accident involving those operations. 
The Secretary of Homeland Security has delegated this authority under 
these statutes to the Coast Guard. Department of Homeland Security 
Delegation No. 0170.1(70), (86), and (92.b).
    The purpose of this rule is to revise our marine vapor control 
system (VCS) regulations to promote safe VCS operation in an expanded 
range of activities now subject to current Federal and State 
environmental requirements, to reflect industry advancements in VCS 
technology, and to codify the standards for the design and operation of 
a VCS at tank barge cleaning facilities (TBCFs). These revisions are 
intended to increase operational safety and marine environmental 
protection by regulating the design, installation, and use of VCSs, but 
they do not require anyone to install or use VCSs.

III. Background

    This final rule amends 1990 Coast Guard regulations for the safety 
of facilities and vessels that voluntarily engage in vapor control 
activities, or that do so in compliance with regulatory requirements 
imposed by the Federal Government or by the States. The Coast Guard 
regulations themselves do not require any facility or vessel to control 
vapor or be equipped with a VCS, nor do they require a vessel to take 
away vapor from facilities.
    During marine tank vessel loading and other operations, the liquid 
loaded into a cargo tank displaces vapors within the tank. Vapors are 
also generated because of vapor growth from liquid evaporation. The 
emitted vapors of certain cargoes contain volatile organic compounds 
(VOCs) and other air pollutants. CAA 90 requires that these vapors be 
controlled in air quality non-attainment areas. Under CAA 90, the U.S. 
Environmental Protection Agency (EPA) issues national standards for 
control of VOCs and other air pollutants emitted during marine tank 
vessel operations. 40 CFR 63.560-

[[Page 42597]]

63.568. CAA 90 also authorizes Federal and State regulations to set 
vapor emission standards and to require that marine terminals and tank 
vessels be equipped with VCSs. These systems are used to collect and 
process VOCs and other air pollutants emitted during loading and other 
operations of marine tank vessels.
    Today, VCS design and technology are more advanced than they were 
in 1990, and VCSs control more types of vapor than the crude oil, 
gasoline blend, or benzene vapors to which they were limited in 1990, 
and the EPA and States now permit or require the control of vapor 
emissions from many other cargoes. See current EPA regulations in 40 
CFR subpart Y, 40 CFR 63.560-63.568. In addition, EPA regulations now 
require marine tank vessels operating at major terminals that control 
VOC vapors to be vapor-tight and equipped with vapor collection 
systems. 40 CFR 63.562.
    Current Coast Guard practice is to accommodate these design and 
technology improvements by using the exemption and equivalency 
determination provisions of 33 CFR 154.108 and 46 CFR 30.15-1 to 
approve individual applications by VCS owners or designers who can show 
that their improvements provide a level of safety at least equivalent 
to that provided by our regulations. Reliance on individual exemptions 
or equivalency determinations involves extra risk for VCS owners and 
designers, and extra review time for the Coast Guard. This rulemaking 
will reduce the need for individual exemptions and equivalency 
determinations, and therefore reduce Coast Guard administrative work, 
by updating our regulations to reflect more recent VCS design and 
technology. This is consistent with the principles of retrospective 
review outlined in section 6 of Executive Order 13563, ``Improving 
Regulation and Regulatory Review,'' 76 FR 3821 (Jan. 18, 2011).
    For cargo types and tank barge cleaning facility VCS applications 
that have emerged since 1990, we have provided safety guidance in the 
form of Navigation and Vessel Inspection Circular 1-96 (included in our 
docket), developed in close consultation with the Chemical 
Transportation Advisory Committee (CTAC), a Coast Guard advisory 
committee that operates under the Federal Advisory Committee Act, 5 
U.S.C. Appendix 2. However, safety guidance is not legally binding on 
industry, and reliance on exemption and equivalency reviews involves 
extra risk for VCS owners and designers and extra review time for the 
Coast Guard. Therefore, our goal has been to update our regulations to 
apply in a wider range of circumstances, and at the same time to 
eliminate a risk for industry and an administrative burden for 
ourselves. Our new regulations:
     Reflect the expanded number and scope of Federal and State 
regulations for VCSs since 1990;
     Reflect advances in VCS technology and operational 
practices since 1990, particularly in vapor-balancing operations, cargo 
line clearing operations, and multi-breasted tandem barge-loading 
operations;
     Incorporate safety guidance and reflect VCS regulatory 
exemptions and equivalency approvals;
     Provide new regulations for cargoes and operations, such 
as TBCFs, that have become subject to Federal or State regulatory 
expansion since 1990;
     Provide for periodic operational reviews to ensure that 
VCSs are properly maintained and operated after they are certified;
     Provide an alternate test program for analyzers and 
pressure sensors, in addition to existing 24-hour pre-transfer/cleaning 
instrument testing requirements, to provide greater regulatory 
flexibility;
     Require certifying entities (CEs) to be operated by 
currently licensed professional engineers to ensure that certification 
is conducted by properly qualified professionals, and clarify the role 
of the CE in VCS design, installation, and hazard reviews;
     Remove 33 CFR Part 154, Appendix B, which provides 
specifications for flame arresters and requires flame arresters to meet 
third-party standards, because of apparent lack of public demand for 
these devices;
     Attempt to achieve greater clarity through the use of 
tabular presentation;
     Update industry standards that are incorporated by 
reference into our regulatory requirements;
     Phase in requirements for existing VCSs to moderate the 
economic impact of new requirements for those VCSs;
     Make conforming changes in regulations other than 33 CFR 
Part 154, Subpart E and 46 CFR Part 39; and
     Make nonsubstantive changes in the wording or style of 
existing regulations, either to improve their clarity or to align them 
with current Federal regulatory style guidance.

IV. Discussion of Comments and Changes

    Except as noted in the following discussion, we are adopting as 
final all the changes we proposed in our 2010 NPRM.
    We received comments on our NPRM from 15 individuals or entities. 
One commenter submitted two separate comments. We heard from one person 
whose affiliation was not disclosed, five engineering firms, seven 
companies that operate equipment or facilities that would be regulated 
under the proposed rule, and two industry associations. Overall, the 
comments were of very high quality and specificity, and on engineering 
questions especially, they were very detailed and difficult to 
summarize for purposes of this discussion. However, in most cases the 
comments provided valuable information that resulted in our revising 
regulatory text to take that information into account. In many cases, 
commenters offered to provide more information about their concerns and 
we followed up with them in telephone conversations. Where those 
follow-ups led to modifications of the regulatory text, we mention this 
in Table 1 of this preamble.
    Table 1 sets out all the substantive changes we have made in this 
final rule to the NPRM's proposed regulatory text and indicates whether 
a change was made in response to a public comment. It excludes minor 
non-substantive changes we made, on our own, to clarify some of the 
NPRM's wording. Where we received a comment on the NPRM regulatory 
text, Table 1 indicates what each commenter had to say about that 
section or topic. Commenter numbers (``Commenter 4,'' ``Commenter 5,'' 
etc.) refer to the docket number assigned to a set of comments by the 
regulations.gov staff; comments from ``Commenter 4,'' for example, can 
be found in regulations.gov as docket number USCG-1999-5150-0004.\1\ 
When we made a substantive change on our own and without the prompting 
of a public comment, an ``n/a'' (not applicable) appears in the 
``Comment'' column.
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    \1\ The first commenter is ``Commenter 3,'' docket numbers USCG-
1999-5150-001 and -002 having been assigned to the NPRM and 
supporting analysis. Commenter 3 and Commenter 9 are the same 
person.

[[Page 42598]]

                                                       Table 1--Discussion of Comments and Changes
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             Topic                                         Comment                                          Coast Guard response or action
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General........................  Commenters 4, 5, 6, 10, and 12 expressed general             We acknowledge this comment.
                                  satisfaction with our proposals.
More information...............  Commenters 5, 7, 10, 11, 12, 13, and 18 asked to obtain or   In many cases, we followed up with these commenters, and
                                  provide additional detailed information about technical      this table indicates where the follow-up contact had a
                                  aspects of the NPRM.                                         bearing on this final rule. The docket contains memoranda
                                                                                               of two such follow-ups.
Phasing-in and grandfathering..  Commenters 7, 10, and 12 approved of our phasing in new      We confirm that existing VCS exemptions, equivalencies,
                                  requirements and asked us to clarify whether existing        clarifications, and exceptions will continue to be
                                  exemption and equivalency approvals will continue in force.  honored.
Tank barge cleaning facilities   Commenters 11, 12, and 13 asked us to recognize factors      We agree and reviewed the NPRM with this in mind. We have
 (TBCFs).                         that are unique to TBCFs.                                    made some adjustments in our TBCF requirements as a
                                                                                               result.
Costs..........................  Commenter 5 asked us to recognize that engineering costs     We have adjusted the cost estimates for certifications and
                                  during dry runs and witnessed wet loads should take into     recertifications to reflect labor necessary for dry runs
                                  account the time spent waiting for items to be corrected     and the witnessing of wet loads.
                                  and for the vessel to dock and prepare for loading.
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33 CFR part 154 (references in the ``Topic'' column are to sections as they appeared in the NPRM, and brackets are used to identify where the provision
 appears in this final rule)
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106(d)(6)......................  n/a........................................................  We substituted the latest available (2007) reapproval of
                                                                                               ASTM International (ASTM) 1273-91 for the 1996
                                                                                               reapproval.
106(g)(2), (g)(3)..............  Commenter 4 asked why we incorporate two older versions of   We substituted the latest available (2011) edition for the
                                  the same standard in 33 CFR.                                 2002 edition in 154.106(g)(3). The incorporation of an
                                                                                               older edition of the standard in 154.106(g)(2) is beyond
                                                                                               the scope of this rulemaking.
310(b)(1)(ii)..................  Commenter 5 said we should clarify our use of ``balances''   We changed ``balances vapor'' to ``balances or transfers
                                  in this paragraph.                                           vapor'' to cover 154.2000(d) and (e).
500............................  Commenters 12, 13, and 18 asked us to revise the substance   As noted in the NPRM, the changes in this section were
                                  of this section.                                             intended only to conform its style to current
                                                                                               requirements for incorporation by reference. Substantive
                                                                                               changes are beyond the scope of this rulemaking, but the
                                                                                               commenters' suggestions are noted for possible regulatory
                                                                                               action in the future.
740(i).........................  n/a........................................................  We substituted the text ``33 CFR 154 2020 through 2025''
                                                                                               for ``33 CFR 154.2023,'' because all those new sections
                                                                                               are derived from existing 154.804, not just 154.2023.
2000(b)........................  Commenters 4, 5, 7, and 8 asked for clarification of this    We agree that this language requires clarification and
                                  paragraph. One of Commenter 5's questions required follow-   have revised it accordingly. After following up with
                                  up.                                                          Commenter 5, who said that recertification is necessary
                                                                                               only every 5 years, not 3, we clarified that he referred
                                                                                               to operational reviews, and because we agree with the
                                                                                               comment in that context, we have amended 154.2021(a)
                                                                                               accordingly. We also added a sentence to confirm the
                                                                                               ongoing validity of existing certifications, approvals of
                                                                                               alternatives, and grants of exemption, in accordance with
                                                                                               whatever terms they impose.
2000(e)........................  Commenter 5 pointed out that transfer of vapors from a       We acknowledge this and, although no change in the wording
                                  facility to a marine vessel that is not offloading is        of this paragraph is needed, this is a factor we would
                                  difficult unless the vessel is under a hard vacuum or is a   take into account in reviewing requests for approval.
                                  pressure vessel.
2001--Diluting.................  Commenter 5 said the diluting gas must also be non-reactive  We agree and revised this definition accordingly.

[[Page 42599]]

 
2001--Existing VCS.............  Commenter 7 said the definition should apply not only to a   We infer that this commenter's concern is with a marine
                                  complete VCS, but to a portion of a VCS.                     vapor collection system connecting to a facility's main
                                                                                               VCS. However, when a system is certified, it is certified
                                                                                               as a VCS, not a portion of VCS. A vapor collection system
                                                                                               with a facility main vapor processing unit is still a
                                                                                               VCS, except that the portion after the connection point
                                                                                               is not required to be certified. To address this concern,
                                                                                               we added ``a marine vapor collection system'' in addition
                                                                                               to ``a marine VCS'' in 154.2111(a). We also revised this
                                                                                               definition to clarify that it applies to existing TBCF
                                                                                               VCSs.
2001--Facility main VCS........  Commenter 8 said we should replace ``refinery'' with         We agree and revised this definition accordingly.
                                  ``facility'' to show the definition is not limited to
                                  refineries.
2001--Flame arrester...........  Commenter 4 said this definition should include Factory      The Factory Mutual Research test procedure has been
                                  Mutual Research-approved arresters, which we have            approved under specific circumstances and on an exemption
                                  previously accepted on an exemption basis.                   basis, but as a regulatory standard it would not be
                                                                                               adequate by itself because it lacks significant details
                                                                                               that are covered by the ASTM and Underwriters
                                                                                               Laboratories (UL) standards.
2001--Inerted [now ``Inert       Commenter 14 said we should change this to ``inert           We agree and revised this definition accordingly.
 condition or inerted''].         condition'' which more clearly separates the term from the
                                  operation of inerting.
2001--Inerting or padding or     Commenters 4 and 14 said this definition needs revision.     We agree and replaced this definition with separate and
 purging [now ``Inerting,''       Purging usually means reducing hydrocarbon or other vapor    revised definitions for inerting, padding, and purging.
 ``Padding,'' and ``Purging''].   concentrations by introducing air or inert gas, not
                                  lowering oxygen content by introducing an inert gas.
2001--Line clearing or pigging   Commenter 14 said we should break this into separate         We agree and replaced this with separate definitions.
 [now ``Line clearing'' and       definitions because some lines are cleared without the use
 ``Pigging''].                    of pigs.
2001--Padded or partially        Commenter 14 said we should break this into separate         We agree and replaced this with separate definitions.
 inerted [now ``Padding'' and     definitions; they are not interchangeable.
 ``Partially inerted''].
2010(g)........................  Commenter 15 said that because it typically takes about a    We agree and revised this provision accordingly.
                                  year to be certified as a professional engineer,
                                  compliance with this paragraph should have a 1-year phase-
                                  in; and asked us to clarify that a CE can meet this
                                  requirement if the person-in-charge (PIC) is a licensed
                                  professional engineer in any one U.S. state or territory,
                                  and need not be licensed in all states where the CE does
                                  business.
2011...........................  Commenter 10 asked whether a class society can be a CE if    Yes. A class society can be a CE provided that it meets
                                  it otherwise complies with this section.                     the CE qualifications of 154.2010 and is accepted by the
                                                                                               Commandant per 154.2011.
2011(e)........................  Commenter 9 said this should be modified to prevent a CE     We agree with Commenter 9 and added new paragraph
                                  from recertifying or performing operational reviews on       154.2011(f) and redesignated subsequent paragraphs
                                  systems where the CE had operational or design input.        accordingly. The clarification that Commenter 17 sought
                                  Without referring to this section, Commenter 17 asked us     is provided by this paragraph (e), which makes it clear
                                  to clarify whether a CE that was responsible for the VCS     that a CE that was responsible for designing a VCS may
                                  design may recertify a unit or perform an operational        not recertify or perform operational reviews on that VCS.
                                  review after its initial certification.
2011(e)(1).....................  Commenter 4 said that prohibiting a CE from ``performing     We followed up with this commenter and confirmed that by
                                  calculations'' is overly broad and restrictive.              revising this paragraph to specify ``system design
                                                                                               calculations,'' we would meet his concern.
2011(f)........................  n/a........................................................  We added text per comment on 154.2011(e).

[[Page 42600]]

 
2020(b)........................  Commenter 10 asked us to confirm that we will continue to    We confirm.
                                  recognize existing approvals and that recertification will
                                  be required only for VCSs that entered operation after
                                  July 23, 1990, and then only if the VCS meets one of the
                                  five subparagraphs.
2020(b)(1).....................  Commenter 16 said TBCFs should undergo a single review, not  The TBCF should be reviewed for each new chemical it
                                  a separate review for each vapor the TBCF controls.          handles and can, at its option, either recertify all its
                                                                                               chemicals at one time or recertify only for the new
                                                                                               chemical.
2020(b)(4).....................  Commenters 13 and 18 said that ``multi-breasted loading''    We acknowledge that several terms are used within the
                                  is not a barge industry term.                                industry, but our 154.2001 definition of ``multi-breasted
                                                                                               loading'' is sufficiently comprehensive to embrace all of
                                                                                               the suggested terms.
2020(b)(5), (d)(5).............  n/a........................................................  Changed references to cargo line clearance systems so that
                                                                                               they clarify their applicability only to those systems
                                                                                               that use pigging.
2020(c)........................  Commenter 11 said this should not apply to TBCFs because     Commenter 11 correctly infers that the paragraph does not
                                  the TBCF only extracts liquid and vapors from the vessel     apply to TBCFs, and we revised the paragraph in line with
                                  and transfers nothing to the vessel; Commenters 13 and 18    the suggestions made by Commenters 13 and 18.
                                  proposed revisions for the paragraph to clarify this.
2020(d)........................  Commenter 4 asked us to revise this paragraph's reference    We revised this paragraph by restating information that
                                  to suggested guidance.                                       appears as a ``Note'' to existing 154.804(d).
2020(e)(4).....................  n/a........................................................  We added this paragraph to emphasize that this section
                                                                                               supplements and does not negate the recordkeeping
                                                                                               requirements of 154.740.
2021...........................  Commenter 4 agrees we should require regular operational     We acknowledge this comment.
                                  reviews.
2021(a)........................  Commenters 4, 5, 7, 8, 11, 12, 13, 16, and 18 asked us to    We do not agree that operational reviews are needed only
                                  lengthen the interval between required operational reviews   after major changes. Major changes should be the subject
                                  from 3 years to 5 years due to cost. Some of these           of a VCS recertification. Periodic operational review is
                                  commenters said operational reviews should only be needed    routine. We are lengthening the interval between
                                  when major changes are made.                                 operational reviews to 5 years, as requested, and also in
                                                                                               response to the comment on 154.2000(b).
2022 [now 2022 through 2024]...  Commenter 4 pointed out several areas where the proposed     We followed up with Commenter 4 and have extensively
                                  section failed to clarify adequately between requirements    revised these provisions in line with his comments. We
                                  for certification, recertification, and operational review.  have simplified language and divided NPRM 154.2022 into
                                                                                               separate final rule sections 154.2022 through 154.2024,
                                                                                               each of which covers certification, recertification, or
                                                                                               operational review.
                                                                                              The following chart shows where provisions of 154.2022, as
                                                                                               it appeared in the NPRM, have been placed in this final
                                                                                               rule.
                                                                                             -----------------------------------------------------------

 
                                                                                                  NPRM section 154.2022              Final rule
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                                                                                              (a)(1)......................  2022(a)
                                                                                              (a)(2)......................  2022(d)
                                                                                              (a)(3)......................  2022(b)
                                                                                              (a)(4)......................  2022(c)
                                                                                              (a)(5)......................  2023
                                                                                              (a)(6)......................  2022(d), 2023
                                                                                              (a)(7)......................  2022(e)
                                                                                              (a)(8)......................  2022(f)
                                                                                              (a)(9)......................  2022(g)
                                                                                              (b) introduction............  2024
                                                                                              (b)(1)......................  2024(a)
                                                                                              (b)(2)......................  2024(e)
                                                                                              (b)(3)......................  2024(g)
                                                                                              (c) introduction............  2022(d)
                                                                                              (c)(1)......................  2022(d)(2)
                                                                                              (c)(2)......................  2022(d)(6)

[[Page 42601]]

 
                                                                                              (c)(3)......................  2022(d)(7)
                                                                                              (c)(4)......................  2022(d)(8)
                                                                                              (c)(5)......................  2022(d)(10)
                                                                                              (c)(6)......................  2022(d)(10)
                                                                                              (c)(7)......................  2022(d)(1)
                                                                                              (c)(8)......................  2022(d)(4)
                                                                                              (c)(9)......................  2022(h)
                                                                                              (c)(10).....................  2022(d)(13)
                                                                                              (d)(1)......................  2022(c)(1)
                                                                                              (d)(2)......................  2022(c)(2)
                                                                                              (d)(3)......................  2022(c)(3)
                                                                                              (d)(4)......................  2022(c)(4)
                                                                                              (d)(5)......................  2022(c)(5)
                                                                                              (e) introduction............  2022(d), 2023
                                                                                              (e)(1)......................  2022(d)(5)
                                                                                              (e)(2)......................  2022(d)(9)
                                                                                              (e)(3)......................  2022(d)(12)
                                                                                              (e)(4)......................  2022(d)(11)
                                                                                              (e)(5)......................  2022(d)(3)
                                                                                              (e)(6)......................  2022(d)(14)
                                                                                              (e)(7)......................  2022(g), 2023
                                                                                              (f)(1)......................  2022(e)(1)
                                                                                              (f)(2)......................  2022(e)(2)
                                                                                              (f)(3)......................  2022(e)(3)
                                                                                              (f)(4)......................  2022(e)(4)

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             Topic                                         Comment                                          Coast Guard response or action
--------------------------------------------------------------------------------------------------------------------------------------------------------
2022(a)(5) [now 2023(b)].......  n/a........................................................  We added the last two sentences to provide better guidance
                                                                                               for the recertification of older VCSs.
2022(b) [now 2024].............  Commenters 3, 4, and 14 asked us to add additional factors   We agree and added new 154.2024(b) through (d) and
                                  for operational review.                                      154.2024(f). In NPRM section 154.2024(b)(2), now
                                                                                               154.2024(e), we added marking and labeling as items to be
                                                                                               verified.
2022(d)(2) [now (c)(2)]........  Commenter 4 asked why we would require the maximum vacuum    We revised the paragraph to clarify that the goal of the
                                  to be maintained during testing of the vacuum breaker.       vacuum breaker testing is to ensure that the maximum
                                                                                               vacuum cannot be exceeded instead of maintaining the
                                                                                               maximum vacuum at one level.
2022(e) [now(d) and, for added   Commenter 16 said TBCFs should undergo a single review, not  The TBCF should be reviewed for each new chemical it
 cargoes, 2023].                  a separate review for each vapor the TBCF controls.          handles and can, at its option, either recertify all its
                                                                                               chemicals at one time or recertify only for the new
                                                                                               chemical.
2022(e)(3) [now (d)(12]........  Commenter 4 asked us to clarify this provision.............  After a follow-up with this commenter, we clarified this
                                                                                               provision.
[NEW 2022(i)]..................  n/a........................................................  We added this paragraph to ensure the VCS training program
                                                                                               is reviewed for compliance with 154.2030 and 154.2031.
                                                                                               This change responds to Commenter 4's comment on 154.2030
                                                                                               and 154.2031.
2023 [now 2025]................  n/a........................................................  We redesignated this section in light of the subdivision
                                                                                               of NPRM section 154.2022 into three sections.
2030, 2031.....................  Commenter 4 asked if the CE is supposed to check the         In response to these comments, we added 154.2022(i) to
                                  facility's compliance with section 2030. Commenter 10        require a CE to review the facility's VCS training
                                  asked if a facility can self-certify compliance or must it   program for compliance with sections 154.2030 and
                                  show other documentation that training requirements have     154.2031. We also added 154.2030(c) to specify that
                                  been met. Commenter 11 said section 2030 should not apply    facility personnel must meet the designation and
                                  to TBCFs. Commenter 12 said that facilities should           qualification requirements of 154.710, and that training
                                  document the training of their PICs and that, because of     documentation must be maintained at the facility in
                                  fragmentation in the TBCF industry, it may make sense to     accordance to 154.740(b). We added language to these
                                  develop a standardized training program.                     sections to clarify that 154.2030 is for transfer
                                                                                               facilities and 154.2031 is for TBCFs. At this time, we
                                                                                               have no plan to develop a standardized training program.
                                                                                               Instead, we will rely on industry to develop its own
                                                                                               training programs that comply with our regulatory
                                                                                               requirements.
2100(f)........................  Commenter 4 said this requirement is essential.............  We acknowledge this comment.

[[Page 42602]]

 
2100(h)(2).....................  Commenter 14 said we should add ``must be fitted'' to        We agree and revised this provision accordingly.
                                  improve clarity.
2100(k)........................  n/a........................................................  We added ``equipment'' to this paragraph and specified
                                                                                               valves, flanges, and fittings to ensure that the
                                                                                               ``suitability'' requirement extends to equipment that is
                                                                                               needed for proper functioning of the VCS but that may not
                                                                                               be considered a VCS ``component.''
2101(a)(6).....................  Commenter 4 said we should allow a valve to be fire safe in  46 CFR 56.20-15 was amended in 2008 to incorporate API 607
                                  accordance with American Petroleum Institute (API) 607,      by reference.
                                  which is more rigorous than 46 CFR 56.20-15 and more
                                  familiar to industry.
2101(e)........................  Commenters 4 and 14 said that additional safeguards are      We agree and revised this paragraph to make it clear that
                                  needed.                                                      it prohibits contact with metal either on the facility or
                                                                                               on the vessel, and that the purpose of the prohibition is
                                                                                               to prevent unintentional electrical bypassing.
2101(g)........................  Commenters 5, 13, and 18 expressed concerns about the        We added language to this paragraph to address the
                                  installation, inspection, and testing of insulating          commenters' concerns.
                                  flanges and hoses.
2101(h)........................  Commenter 4 said we should change ``mechanism'' to           We agree and revised the provision accordingly.
                                  ``means'' so as not to preclude use of a shutdown based on
                                  negative differential pressure across the detonation
                                  arrester (currently used by most facilities).
[NEW 2101(i)]..................  n/a........................................................  We added this paragraph to make it clear that electrical
                                                                                               bonding must comply with 46 CFR 35.35-5.
2102 introductory paragraph....  Commenter 4 said we should clarify by inserting ``and not    We agree and revised this provision accordingly. We also
                                  loading cargo on the vessel'' after ``while inerting the     added ``padding or purging'' after ``inerting'' to
                                  cargo tanks''.                                               reflect the separation of these three definitions in
                                                                                               section 2001.
2102(a)........................  Commenter 4 asked if this requirement is necessary, because  We think it is necessary because 46 CFR 39.2009(a)(1)(iii)
                                  he has not seen a barge with a 120-volt system.              allows a tank barge to have a liquid overfill protection
                                                                                               system that receives power from a facility and is fitted
                                                                                               with a shore tie cable and a 120-volt, 20-ampere
                                                                                               explosion-proof plug.
2102(a)(2).....................  n/a........................................................  We corrected erroneous references in the NPRM to the
                                                                                               relevant sections of the incorporated industry standard.
2102(b)........................  Commenter 5 asked us to review this provision with respect   We reviewed this provision in light of the comment but
                                  to grounding of the shielded wire in the overfill system.    concluded no changes are needed. However, we revised 46
                                                                                               CFR 35.35-5 to address vessel/shore electrical bonding
                                                                                               cable or wire.
2103(a)........................  Commenter 3 said we should rewrite this provision to take    We revised this provision in accordance with the
                                  variability of vapor pressure into account, and Commenter    suggestions of Commenter 3. Commenter 5's formula is
                                  5 said we should substitute his recommended formula for      valid but, we think, more complicated than ours, which is
                                  our formula, which is too complicated and inaccurate for     more generally adaptable for VCS design.
                                  estimating vapor growth.
2103(f)........................  Commenter 4 said that if this paragraph requires cargo       Commenter 4 correctly interpreted this paragraph. The
                                  loading to be shutdown on high-high pressure, while          equipment and procedures we require should not result in
                                  allowing the VCS to continue to receive vapors, it is a      the type of shutdown that concerns Commenter 5. Paragraph
                                  good change. Commenter 5 raised concerns about accidents     (d) of this section requires activating an alarm meeting
                                  that could result from activation of a shutdown system.      154.2100(e), which requires audible and visible alarm.
                                                                                               Paragraph (f) of 154.2100 requires only activating the
                                                                                               emergency liquid cargo shutdown system required by
                                                                                               154.550, which is for liquid loading.
2103(j)(1).....................  Commenter 3 said we should revise this provision to account  We agree and revised this provision accordingly.
                                  for pressure changes at different altitudes.
2103(k)........................  Commenter 14 said we should define ``extensive length''      We cannot provide a clearer and more specific definition
                                  more clearly.                                                that would be workable, but we added a reference to
                                                                                               undersea piping as an example of extensive length.

[[Page 42603]]

 
2103(n), introductory paragraph  n/a........................................................  We expanded the reference to ``inerting,'' in accordance
                                                                                               with the commenter-suggested change in section 2001
                                                                                               definitions.
2103(n)(3).....................  Commenter 5 said we should revise this provision so that     We agree and revised the provision accordingly.
                                  the placement of the pressure sensors always allows for
                                  sensing the pressure.
2104...........................  n/a........................................................  We changed references in this section from cargo line
                                                                                               clearance to pigging, in accordance with the commenter-
                                                                                               suggested change in section 2001 definitions. We also
                                                                                               specified that the compressed gas we refer to is inert,
                                                                                               and redesignated paragraphs.
2104(c) [now (a)(3)]...........  Commenter 5 said we should require the automatic shutoff     We revised this provision to specify that it refers to a
                                  valve to close within 2 seconds because the marine vessel    fast-action automatic shutoff valve like a solenoid
                                  can be over-pressurized in 4 seconds while pigging.          valve. We think specifying 2 seconds would be too
                                                                                               restrictive.
2104(d) [now (a)(4)]...........  Commenter 5 said a valve position sensor on the manual       We agree, but an interlock is still needed for the valve
                                  cargo bloc valve or the automatic cargo block valve would    position sensor.
                                  serve the same purpose as the interlock we proposed.
2104(e) [now (a)(5)]...........  Commenter 5 said the means to detect the pig arrival must    We agree and revised this provision accordingly. Personnel
                                  be an automatic detection device as well as specifically     training is covered in sections 154.2030(a)(6) and
                                  trained personnel to operate a manual quick closing valve.   154.2150(j)(2).
[NEW 2104(b)]..................  n/a........................................................  We added this provision to take account of those cargo
                                                                                               lines that are cleared without pigging, in response to
                                                                                               commenter-suggested change in section 2001 definitions.
2105(a)(1), (b)(1), (f)(1).....  Commenter 5 said a 6-meter requirement would require nearly  We disagree with this comment for 154.2105(a)(1). The 6-
                                  all gas injecting facilities to rework vapor piping and      meter requirement is not new--see current 154.820(a)(2).
                                  perhaps the detonation arrester size.                        New 154.2105(a)(1) combines current 154.820(a)(1),
                                                                                               154.820(a)(2), and 154.820(a)(3), and new 154.2105(a)(1)
                                                                                               and 154.2105(a)(2) allow for installation of a detonation
                                                                                               arrester as an alternative, as recommended by CTAC.
                                                                                              We agree with this comment for 154.2105(b)(1), which
                                                                                               requires meeting 154.2105(a)(1) and having a detonation
                                                                                               arrester installed. We revised 154.2105(b)(1) and
                                                                                               154.2105(f)(1) to allow the oxygen analyzer to be located
                                                                                               4 meters downstream of the detonation arrester.
2105(a)(2), (b)(1), (c)(1),      Commenter 4 said we should base distance on a number of      Most dock detonation arrester distance exemption requests
 (d)(1), (e), (f)(1), (g)(1),     diameters of the vapor line instead of a fixed 18 meters.    approved have been for 18 meters or less. The 18 meters
 (h)(1).                          Commenters 11, 13, and 18 also suggested alternatives to     distance is less restrictive than Commenter 4's proposed
                                  the 18 meter distance, for example requiring items to be     alternative. An alternative ``place items as close as
                                  placed as close as practicable, as is common industry        practicable'' standard would be too subjective to provide
                                  practice.                                                    good guidance and would be hard to enforce. We have
                                                                                               clarified these provisions by specifying that the vapor
                                                                                               piping between the facility vapor connection and the dock
                                                                                               detonation arrester must be protected from any possible
                                                                                               internal and external ignition source.
2105(d)(2).....................  Commenter 18 said this provision is too restrictive and not  We disagree. New 154.2105(d)(2) is the same requirement
                                  always effective.                                            imposed by current 154.820(d)(2), and CTAC recommended
                                                                                               against any relaxation of that requirement.
2105(f), (g), (h)..............  Commenter 5 said that for inerted, partially inerted, or     Section 154.2105(f) allows an inerting, enriching, or
                                  combination cargoes, we should require the facility to use   diluting system meeting 154.2107 as an option. Sections
                                  the lowest minimum oxygen concentration for combustion       154.2107(k)(3), 154.2107(n), and 154.2107(o)(1) already
                                  (MOCC) of all cargoes being transferred.                     specify the use of either the cargo's MOCC or the
                                                                                               enriching gas's MOCC, whichever is lower. Alternatively,
                                                                                               the mixture's MOCC may be used.
2105(h)........................  Commenter 3 asked if (h)(3) is an alternative only to        The former. We inserted ``either'' and combined
                                  (h)(2) or to (h)(1) and (h)(2) combined.                     154.2105(h)(2) and 154.2105(h)(3) to make this clearer.

[[Page 42604]]

 
2105(j)(2) [now (j)(2) and       Commenter 5 said we should insert ``end-of-line'' before     We agree and revised 154.2105(j)(2) and new 154.2105(j)(3)
 (j)(3)].                         ``flame arrester,'' because an in-line flame arrester may    accordingly.
                                  not be effective.
2105(j)(2)(i) [now (j)(3)(i)]..  Commenter 4 said that a flame arrester meeting ASTM F-1273   We agree and split 154.2105(j)(2) into 154.2105(j)(2) and
                                  does not need a proving device, and Commenter 5 proposed     154.2105(j)(3) and revised this paragraph accordingly.
                                  revisions to this provision.
2105(j)(2)(ii) [now (j)(3)(ii)]  Commenter 5 proposed a revision to this paragraph..........  We agree and revised this paragraph accordingly.
former 2106(a).................  Commenters 3, 4, and 14 raised questions about the meaning   We removed this paragraph as it appeared in the NPRM
                                  of this provision.                                           because it was confusing. As we think was clear from the
                                                                                               NPRM's 154.2106(b) [now 154.2106(a)], the questions
                                                                                               raised by these comments should be answered by guidelines
                                                                                               outlined in the arrester manufacturer's Coast Guard
                                                                                               acceptance letter.
2106(c) [now (b)]..............  Commenters 3 and 14 asked if the reference is to components  This paragraph is intended to apply on either side of the
                                  upstream of the detonation arresters, downstream, or both.   detonation arrester, because there may be a potential
                                                                                               ignition source on either side; we revised it to make
                                                                                               that clearer.
2107...........................  Commenter 13 said we should apply gas inerting and           CTAC recommended no relaxation of this general
                                  enriching requirements only to loading facilities and not    requirement, which is taken from NVIC 1-96. We
                                  to TBCFs.                                                    acknowledge that under some conditions and with suitable
                                                                                               alternative arrangements (see 154.107 and 154.108 with
                                                                                               respect to alternatives and exemptions), it may not be
                                                                                               necessary to apply it to all TBCFs.
2107(a)........................  Commenter 5 proposed a clarifying revision.................  We agree and changed ``vapor collection line'' to ``vapor
                                                                                               collection system'' and specified ``two system volume
                                                                                               exchanges'' accordingly.
2107(b)........................  Commenters 4, 5, 13, and 18 suggested various alternatives   With respect to Commenter 18, we think the regulations as
                                  for the 22 meter provision of this paragraph, with           drafted provide the necessary flexibility. The gas
                                  Commenter 4 suggesting a specific pipe-diameter standard,    injection point should be after the dock detonation
                                  and Commenter 18 saying we need to provide flexibility for   arrester, and this paragraph provides that while also
                                  existing methods of operation like systems equipped with     allowing the use of 154.2105(a), which requires an
                                  detonation arresters at the facility vapor connection and    analyzer at 6 meters from the facility vapor connection,
                                  vapor destruction unit.                                      as an exception. With respect to these comments in
                                                                                               general, this provision is in line with currently
                                                                                               approved exemptions and is less restrictive than the pipe-
                                                                                               diameter standard suggested by Commenter 4. We have
                                                                                               clarified these provisions by specifying that the vapor
                                                                                               piping between the facility vapor connection and the dock
                                                                                               detonation arrester must be protected from any possible
                                                                                               internal and external ignition source.
2107(b)........................  n/a........................................................  In addition to the changes made in this paragraph to
                                                                                               respond to Commenters 4, 5, 13, and 18, we have also
                                                                                               clarified the location of the gas injection and mixing
                                                                                               arrangement relative to the vapor processing unit or the
                                                                                               vapor-moving device, as recommended by CTAC in 1997 to
                                                                                               maintain a minimum size of non-flammable vapor slug in
                                                                                               the vapor piping (to prevent a flashback from an ignition
                                                                                               source). The minimum piping distance is also
                                                                                               approximately the difference between the maximum piping
                                                                                               length of the arrangement from the facility vapor
                                                                                               connection as required by this paragraph and the minimum
                                                                                               distance of a vapor destruction unit from any tank vessel
                                                                                               berth as required by 154.2109(c).
2107(c)(2).....................  Commenter 4 proposed clarifying what must be                 We agree and revised the provision accordingly.
                                  ``downstream.''.

[[Page 42605]]

 
2107(d)........................  Commenter 18 said we should add calorimeters as approved     In general, a calorimeter is a device used to measures
                                  devices.                                                     heat, while what we want analyzed is oxygen or
                                                                                               hydrocarbon concentrations. A facility wishing to use a
                                                                                               calorimeter can submit an alternative or exemption
                                                                                               request with information for review.
2107(d)(2), (d)(4), (d)(6).....  Commenters 4 and 14 asked us to define what we mean by       The ``majority pair'' requirement is from NVIC 1-96,
                                  ``majority pair''.                                           Enclosure (1), Part A. Sec 9, and we have used ``voting
                                                                                               system'' language from a draft of that NVIC to revise our
                                                                                               text for clarity.
2107(h)(3), (i)(3), (j)(2),      Commenter 4 said the vapor moving device should not be shut  We agree with the changes offered by Commenters 5 and 14
 (k)(2)(ii), (l)(3), (m)(4).      down for high-high oxygen or low-low hydrocarbons, and       and deleted ``shut down any vapor moving device''
                                  Commenters 5 and 14 proposed revisions to these paragraphs.  accordingly. With respect to Commenter 4, a vapor mover
                                                                                               is considered an ignition source, but it can continue to
                                                                                               operate so that multi-dock operations will not be
                                                                                               disrupted and so that the vapor mover can help draw more
                                                                                               inerting, enriching, or diluting (IED) gas into the VCS.
2107(o)........................  Commenter 4 proposed allowing an alternative for             We followed up with Commenter 4 on this and learned of his
                                  simultaneously controlling inert and non-inert vapors,       interest in a specific vapor, for which an exemption
                                  where the inerted vapor stream is lowered by 1% from         could be the appropriate solution. In general, the more
                                  normal levels.                                               conservative approach of this provision is appropriate.
2109(b)(2)(i)..................  Commenter 4 said that if this requires quick closing valves  In light of this comment, we revised this provision to
                                  at the vapor destruction device or where the VCS connects    clarify that it applies only when a condition is detected
                                  to a facility's main VCS to close on any dock shutdown, it   that requires the closing of the quick-closing stop
                                  is not necessary.                                            valves, and not under other VCS shutdown conditions like
                                                                                               overpressurization.
2109(b)(2)(iv).................  Commenter 4 said that quick closing valves should be fire    We agree and accordingly specified that the valve must
                                  resistant.                                                   also be a Category A valve as defined in 46 CFR 56.20-15.
2109(b)(3)(i)..................  Commenter 4 said we should substitute ``accepted'' for       We agree and revised the provision accordingly.
                                  ``approved''.
2110(a)(1).....................  Commenter 4 asked if the tank high level alarm system and    We have revised the provision to clarify that these should
                                  overfill control system are required to have independent     be independent, like other alarm and shutdown systems.
                                  level sensing systems.
2110(a)(2).....................  Commenter 4 said we should base distance on a number of      The 18-meter or less distance has been approved for most
                                  diameters of the vapor line (e.g. 40 pipe diameters)         dock detonation arrester distance exemption requests, and
                                  instead of setting it at 18 meters, and Commenters 11, 13,   18 meters is less restrictive than Commenter 4's proposed
                                  and 18 proposed other alternatives to the 18-meter           alternative. An alternative ``place items as close as
                                  distance, for example, requiring items to be placed as       practicable'' standard would be too subjective to provide
                                  close as practicable, as is common industry practice.        good guidance and would be hard to enforce. We clarified
                                  Commenter 7 asked if this paragraph merely repeats           these provisions by specifying that the vapor piping
                                  2105(a)(2).                                                  between the facility vapor connection and the dock
                                                                                               detonation arrester must be protected from any possible
                                                                                               internal and external ignition source. The two provisions
                                                                                               are not duplicative; see the different introductory
                                                                                               language in 154.2105(a) and 154.2110(a)(2).
2110(a)(4).....................  Commenter 4 said that there is no need for an oxygen         We agree and revised this provision so that inert cargo
                                  analyzer for vapor balancing of inert cargo systems when     systems can comply with either 154.2105(a)(1) or
                                  loading a vessel.                                            154.2110(a)(2).
2110(b)(1).....................  Commenter 4 said we should change ``mechanism'' to           We agree and revised the provision accordingly.
                                  ``means,'' so as not to preclude use of a shutdown based
                                  on negative differential pressure across the detonation
                                  arrester (currently used by most facilities).
2111(a), introductory paragraph  n/a........................................................  We added ``a marine vapor collection system'' in response
                                                                                               to the comment on 154.2001's definition of ``existing
                                                                                               VCS.''

[[Page 42606]]

 
2111(a)(2).....................  Commenter 4 said that if this requires quick closing valves  We agree with this comment and revised this provision by
                                  at the vapor destruction device or where the VCS connects    substitute ``a VCS shutdown condition occurs'' for
                                  to a facility's main VCS to close on any dock shutdown, it   ``vapor back flow to the marine vapor line is detected''
                                  is not necessary.                                            and split 154.(a)(2) into 154.(a)(2) and 154.(a)(2)(i)-
                                                                                               (iii).
2111(a)(3).....................  Commenter 4 said we should change ``mechanism'' to           We agree and revised the provision accordingly.
                                  ``means,'' so as not to preclude use of a shutdown based
                                  on negative differential pressure across the detonation
                                  arrester (currently used by most facilities).
2111(c) [now 2111(d)]..........  Commenter 5 asked if this provision would require a          We do not think an exemption would be necessary. After
                                  facility to get an exemption if it wanted to pass vapors     contacting the commenter and discussing this provision
                                  to the dock flare from a truck or railcar loading, and       with him, we clarified it by adding a new paragraph
                                  used the flare antiflashback burner part of the marine VCS.  154.2111(d) to allow for sharing a marine vapor
                                                                                               destruction unit as an exception to 154.2111(c).
2111(d)........................  n/a........................................................  We added new paragraph 154.2111(d) in response to
                                                                                               Commenter 5's comment on 154.2111(c).
2112(a)........................  Commenter 5 said that after loading is complete, the system  We agree with this comment. However, this is an
                                  that controlled polymerizing vapors must purge/clean the     operational requirement. Incompatible cargoes are
                                  VCS, including hoses or vapor arms, with at least two        addressed in 154.2150(p). For maintenance and other
                                  system-volumes of non-reactive gas or air. This should be    concerns, we added a new 154.2150(q) so that after each
                                  a standard procedure for all cargoes so that the VCS is      transfer operation, the VCS piping and equipment must be
                                  left in a safe condition for any potential maintenance or    purged with at least two system volume exchanges of non-
                                  incompatible cargoes.                                        reactive gas or air so the VCS is left in a safe
                                                                                               condition.
2112(a)(3).....................  Commenter 4 said we should also require the differential     We agree and revised the provision accordingly.
                                  pressure instrument to alarm on high differential pressure
                                  across the detonation arrester, to warn of polymerization.
2113...........................  Commenter 18 provided circumstances under which special      We agree that special requirements are not needed for
                                  requirements for alkylene oxides are not needed.             pressure cargoes and added language in the introductory
                                                                                               paragraph to make that clear.
2113(b) [now 2113(a)(2)].......  Commenter 13 said that this requirement is unnecessary for   We revised this section to exclude pressure cargoes. In
                                  safety and will likely have the effect of shutting down      addition, instead of complying with what was (in the
                                  some facilities and forcing others to perform expensive      NPRM) 154.2113(b) and is now 154.2113(a)(2), a facility
                                  retrofits.                                                   can comply with what was (in the NPRM) 154.2113(c) and is
                                                                                               now 154.2113(b).
2113(c) [now 2113(b)]..........  Commenter 5 said that in addition to the CE, a marine        We agree with Commenter 5 and have revised this provision
                                  chemist or properly trained third-party surveyor should be   accordingly. With respect to Commenter 18, we have
                                  allowed to determine if the VCS has been adequately          revised this section to exclude pressure cargoes. In
                                  cleaned. Commenter 13 said that this requirement is          addition, instead of complying with what was (in the
                                  unnecessary for safety and will likely have the effect of    NPRM) 154.2113(b) and is now 154.2113(a)(2), a facility
                                  shutting down some facilities and forcing others to          can comply with what was (in the NPRM) 154.2113(c) and is
                                  perform expensive retrofits.                                 now 154.2113(b).
2150(c)........................  Commenter 7 said we should clarify that the required system  The point made by Commenter 7 is in line with the guidance
                                  testing does not extend to shutdown of operating systems     we currently provide to CEs. We do not agree and the
                                  that may be serving other portions of the facility.          regulatory text does not need to be changed in this
                                                                                               respect because we are not changing that guidance.
2150(c)(1).....................  Commenter 14 said we had misstated where exceptions to this  We agree with Commenter 14 and revised this provision
                                  paragraph are provided. Commenter 7 said electronic          accordingly. Commenter 7 already uses electronic testing
                                  testing should be permitted for complying with this          under existing exemptions that remain in place; it is
                                  paragraph.                                                   appropriate for the unique characteristics of Commenter
                                                                                               7's VCS but would not be appropriate for VCSs in general.

[[Page 42607]]

 
2150(c)(4).....................  Commenter 4 said that if this requires testing of the        After following up with Commenter 4, we agree with his
                                  flammability analyzer required by 154.2105(j)(2)(i), the     point and with Commenter 5's point, and we revised
                                  combustible gas indicator used for this application does     154.2150(c)(4) and 154.2150(c)(5) accordingly.
                                  not usually have the means to check with a sample gas and
                                  does not need calibration as often as an oxygen or
                                  hydrocarbon analyzer. Commenter 5 said that to properly
                                  calibrate an analyzer, a ``zero gas'' must be used in
                                  addition to a span gas.
2150(c)(5).....................  n/a........................................................  We revised this paragraph per the comment on section
                                                                                               154.2150(c)(4).
2150(c)(6).....................  Commenters 4 and 5 said that this provision is               We agree in part with Commenters 4 and 5 and revised this
                                  impracticable. Commenter 7 said we should modify it so       provision to clarify our intent, which is not to conduct
                                  that checking requires only visual checking, not an          technical capacity or lift pressure testing of the
                                  operational check of the relief devices, which should be     valves, but rather to make sure the valve travel is not
                                  allowed annually, consistent with present practice.          constrained and that the flame arrester is not damaged.
                                                                                               Under an existing exemption suiting the unique
                                                                                               characteristics of Commenter 7's VCS, visual-only testing
                                                                                               is permitted, but it would be inappropriate for VCSs in
                                                                                               general.
2150(f)........................  Commenter 14 asked us to clarify whether this applies        It applies downstream and we clarified this provision
                                  upstream or downstream of the facility vapor connection.     accordingly. Note that 154.2103(h) requires pressure
                                                                                               sensors to be located in the vapor line between the
                                                                                               facility vapor connection and any isolation valve.
2150(g)........................  Commenters 13 and 18 said many facilities lack the ability   We agree in part but do not think it is necessary to
                                  to make an accurate determination of liquid cargo transfer   require instrumentation in this provision. Existing
                                  rates and that therefore we should require instrumentation.  regulations (154.525, 156.120(aa)) require monitoring
                                                                                               devices under certain conditions and verification that
                                                                                               the initial loading rate and the maximum transfer rate
                                                                                               are determined, and provide adequate control of the
                                                                                               problem cited by these commenters.
2150(i)........................  Commenters 13 and 18 said we should clarify what is meant    We agree with these commenters and revised this provision
                                  by ``gas''.                                                  to clarify that a compressed inert gas such as nitrogen
                                                                                               can be used to clear cargo lines if a pigging system that
                                                                                               meets 154.2104 is provided.
2150(j)........................  n/a........................................................  We revised this paragraph to take account of those cargo
                                                                                               lines that are cleared without pigging, in response to
                                                                                               commenter-suggested change in 154.2001 definitions.
[New 2150(q)]..................  n/a........................................................  To address the comment on 154.2112(a), we added this new
                                                                                               paragraph. After each transfer operation, the VCS piping
                                                                                               and equipment must be purged with at least two-system
                                                                                               volume exchanges of non-reactive gas or air so the VCS is
                                                                                               left with a safe condition.
2150(q) [now 2150 (r)].........  n/a........................................................  We added ``or 156.170(i),'' to take account of this rule's
                                                                                               addition of that alternative to 156.170(g).
2180(b)(4).....................  Commenter 3 said we should revise this to refer to           We agree and revised the provision accordingly.
                                  placement at ``or near'' the sampling probe.
2180(c), (d)...................  Commenter 4 asked what ``safety system function tested''     The relevant tests are in 154.2181. We revised these
                                  means.                                                       paragraphs to make that clearer.
2180(e)(3), (e)(4).............  Commenter 4 asked us to clarify these standards............  We agree and revised these provisions accordingly.
2180(g)........................  n/a........................................................  We inserted ``zero gas'' in light of the comment on
                                                                                               154.2150(c)(4).
2181(b), (c), (d), (e).........  Commenter 7 said that annual calibration should be           We disagree. This section and 154.2180 provide a
                                  sufficient.                                                  compliance alternative to the 24-hour pre-transfer or pre-
                                                                                               tank cleaning testing of 154.2150 and 154.2250. Also,
                                                                                               156.170(g)(4) requires analyzers to be calibrated either
                                                                                               within the previous 2 weeks or within 24 hours prior to
                                                                                               operation when the VCS is operated less frequently than
                                                                                               once a week.

[[Page 42608]]

 
2181(d)(4)(i)..................  Commenter 4 said that most existing systems inject the span  We revised this provision to make it clear that we do not
                                  gas at the analyzer box and do not use sample tubing, and    intend for those systems to need modification.
                                  asked if those systems would need to be modified.
2200...........................  Commenter 4 said that because proposed 154.6001(f)(3)        After following up with Commenter 4, we agree and added
                                  references the requirement of proposed 46 CFR 39.2009 to     new 154.2200(b) accordingly.
                                  have a connection with the facility for the overfill
                                  control system, 154.2200 should require the facility to be
                                  able to accept the barge connection if they are using
                                  liquid displacement.
2200(b)........................  n/a........................................................  We added this paragraph in response to the comment we
                                                                                               received on 154.2200 and on 46 CFR 39.6001(f)(3).
2200(c) [now (d)]..............  Commenter 13 said we should eliminate gas inerting and       We disagree. These IED requirements are from NVIC 1-96 and
                                  enriching requirements for TBCFs.                            are based on recommended safety standards developed by
                                                                                               CTAC in 1994 and 1995. In 1998, CTAC reviewed NVIC 1-96
                                                                                               and did not recommend eliminating the IED requirement for
                                                                                               TBCFs.
2203(c), (d)...................  Commenter 4 asked why we would require correcting for a      We agree and modified 154.2203(d) to clarify that the
                                  pressure drop from the cargo tank to the pressure sensor     remotely operated shutoff valve required by 154.2203(c)
                                  at the gas injection point, when it is more conservative     must be closed when the pressure at the fluid injection
                                  not to correct and correction could allow for a higher       connection reaches a corresponding 90% of the lowest
                                  alarm set point than 80% of the relief valve set point and   setting of any pressure relief valve on the barge.
                                  a higher shutdown set point than 90% of the relief valve
                                  set point.
2203(g)........................  Commenter 18 said that tank barges do not need individual    We agree and modified this provision to allow for the use
                                  cargo tank pressure sensors because one sensor can detect    of a common vapor sensor as an alternative.
                                  pressure throughout the barge via the common vapor system.
2204...........................  Commenter 18 said we should remove the distance requirement  Most dock detonation arrester distance exemption requests
                                  or allow existing facilities to maintain current locations   approved have been for 18 meters or less. An alternative
                                  as long as the detonation arrester is located as close as    ``place items as close as practicable'' standard would be
                                  practicable to the facility connection.                      too subjective to provide good guidance and would be hard
                                                                                               to enforce. We have clarified this section by specifying
                                                                                               that the vapor piping between the facility vapor
                                                                                               connection and the dock detonation arrester must be
                                                                                               protected from any possible internal and external
                                                                                               ignition source.
2204(a)(2), (b)(2), (d)(2).....  Commenter 13 said we should eliminate gas inerting and       We disagree for the reasons given in our discussion of the
                                  enriching requirements for TBCFs.                            commenter's remarks on 154.2200(c).
2250(c)(1).....................  Commenter 4 asked us to clarify our wording about            We agree and revised the provision accordingly.
                                  exemptions.
2250(c)(4), (f)................  Commenter 13 said we should eliminate gas inerting and       We disagree for the reasons given in our discussion of the
                                  enriching requirements for TBCFs.                            commenter's remarks on 154.2200(c). However, we revised
                                                                                               154.2250(c)(4) per the comment on 154.2250(c)(5).
2250(c)(5).....................  Commenter 4 said that if this requires testing of the        After following up with Commenter 4, we agree with his
                                  flammability analyzer required by 154.2105(j)(2)(i), the     point and revised 154.2250(c)(4) and 154.2250(c)(5)
                                  combustible gas indicator used for this application does     accordingly, as we did in 154.2150(c)(4) and
                                  not usually have the means to check with a sample gas and    154.2150(c)(5). With respect to Commenter 13's comment,
                                  does not need calibration as often as an oxygen or           we disagree for the reasons given in our discussion of
                                  hydrocarbon analyzer. Commenter 13 said we should            the commenter's remarks on 154.2200(c).
                                  eliminate gas inerting and enriching requirements for
                                  TBCFs.
2250(c)(6).....................  Commenter 5 said that this provision is impracticable......  We agree in part with Commenter 5 and revised this
                                                                                               provision to clarify our intent, which is not to conduct
                                                                                               technical capacity or lift pressure testing of the
                                                                                               valves, but rather to make sure the valve travel is not
                                                                                               constrained and that the flame arrester is not damaged.

[[Page 42609]]

 
2250(d)(5).....................  Commenter 4 asked us to clarify this provision so that the   We agree and revised the provision accordingly.
                                  gas-freeing rate may not exceed the maximum allowable rate
                                  during--but not before--operations.
2250(e)........................  Commenter 12 said that annual inspection of detonation       Exemptions may be available to facility operators for whom
                                  arresters may be difficult for some facilities, and asked    annual inspection is difficult. We revised 154.2250(e) so
                                  us to specify whether compliance documentation is required.  that it is worded like 154.2150(q) [now 154.2150(r)] and
                                                                                               makes clear how documentation requirements are
                                                                                               established.
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                     33 CFR part 156
--------------------------------------------------------------------------------------------------------------------------------------------------------
170(g)(3)......................  n/a........................................................  We added two more references that need updating to the
                                                                                               amendatory instruction for this paragraph.
170(g)(4)......................  n/a........................................................  We updated the reference to 46 CFR 39.40-3(a) so that it
                                                                                               now refers to 46 CFR 39.4003.
170(i).........................  Commenter 8 said that approval by the local Captain of the   You may propose alternative arrangements under 156.107,
                                  Port (COTP) is adequate and less burdensome than approval    but generally the Commandant and not the COTP will have
                                  by the Commandant.                                           the necessary expertise.
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                     46 CFR part 35
--------------------------------------------------------------------------------------------------------------------------------------------------------
35.35-4........................  n/a........................................................  We added this section per the discussion of the comments
                                                                                               on 35.35-5.
35.35-5........................  Commenter 5 said the shielded wire in the overfill system    We agree with these commenters and added new 35.35-4 and
                                  of 33 CFR 154.2102(b) is attached to a ground connection     rewrote this section. Together, the two sections take
                                  pin which is grounded by the facility but should not be      into account all of these commenters' remarks.
                                  grounded to the marine vessel; this would then comply with
                                  the proposed requirement in 46 CFR 35.35-5 for not
                                  grounding the marine vessel to the dock. Commenter 11 said
                                  the prohibition against using external bonding cables or
                                  straps to achieve electrical bonding is unnecessary, and
                                  the rule should allow barge-to-dock cable bonding as is
                                  the current and safe industry practice. Commenter 13 said
                                  we should continue allowing the use of bonding cables
                                  between a barge and a dock. Commenter 18 asked us to
                                  clarify that this section does not apply to ship-to-barge
                                  and barge-to-barge transfers.
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                     46 CFR part 39
--------------------------------------------------------------------------------------------------------------------------------------------------------
1005(h)(1).....................  n/a........................................................  In line with the comment on 33 CFR 154.106(g)(3), we
                                                                                               revised this paragraph to incorporate the latest
                                                                                               available (2011) edition of the National Fire Protection
                                                                                               Association's National Electric Code (NFPA 70).
1013(b)........................  Commenter 4 said our proposed language could be interpreted  We agree and revised this provision so that it applies
                                  as requiring the vessel VCS to have been operational by      only to VCSs that began operating on or after that date.
                                  July 23, 1990.
1017...........................  Commenter 4 said the Coast Guard Marine Safety Center (MSC)  Vessels currently conducting multi-breasted loading
                                  may not be able to review all the vessels that conduct       operations are already approved by MSC and Commandant (CG-
                                  multi-breasted loading operations or gas-freeing or          ENG-5) and will not need reapproval. Section
                                  cleaning operations between the publication of the final     39.1001(a)(2) allows a tank barge conducting gas-freeing
                                  rule and its effective date.                                 or cleaning operations to comply at the time of its next
                                                                                               inspection but no later than 5 years after the effective
                                                                                               date.
1017(b)(1), (b)(2).............  n/a........................................................  We revised these paragraphs per the comment on section
                                                                                               39.1017(c).
1017(c)........................  Commenter 18 said existing VCSs should not be required to    We agree and revised 39.1017(b)(1) and 39.1017(b)(2) to
                                  apply for new approval when the final rule takes effect.     exclude those already approved by the MSC.
2001(m)........................  Commenter 4 pointed out a miscited reference...............  We agree and changed the citation at the end of the
                                                                                               provision.

[[Page 42610]]

 
2007(b)(4).....................  Commenter 4 said we should continue to require checking, or  We agree and changed ``be inspected'' to ``be verified.''
                                  testing, but not inspection.
2009(a)(1)(iii)(B).............  n/a........................................................  In line with the comment on 33 CFR 154.106(g)(3), we
                                                                                               revised this paragraph to reference provisions in the
                                                                                               latest available (2011) edition of NFPA 70.
2009(a)(2)(ii), (a)(2)(iii)....  Commenters 13 and 18 said this is unattainable because       We disagree. This is not a new requirement but is the same
                                  accurate flow rate instrumentation is not available on       as appears in 46 CFR 39.20-9(b)(2). Barges and facilities
                                  unmanned barges and some facilities do not have calibrated   have successfully complied with this requirement since
                                  instrument flow rates available for use during their cargo   1990. However, we did correct an erroneous reference in
                                  transfer to vessels.                                         39.2009(a)(2)(iii): the alarm and shutdown system needs
                                                                                               to be activated on the cargo discharging vessel, not the
                                                                                               cargo receiving vessel.
2009(b)........................  Commenter 4 pointed out a miscited reference...............  We agree and corrected the citation at the end of this
                                                                                               provision.
2011(d)........................  Commenter 4 asked what methods are approved by the Coast     We revised this provision to identify where guidance is
                                  Guard for calculating vapor growth.                          available for free and to specify that, alternatively,
                                                                                               submitters may calculate the vapor growth rate using any
                                                                                               recognized standard and following good engineering
                                                                                               practice.
2013, introductory paragraph...  Commenter 4 asked why we would require the pressure sensor   We do not disagree that the pressure sensing devices could
                                  to be located as close as practicable to the vessel vapor    be located at the cargo tanks. However, to prevent over-
                                  connection, when it is more accurate to have the sensor      pressurization of cargo tanks, current prevention
                                  located closer to the tanks.                                 guidance includes submittal of pressure drop calculations
                                                                                               from the cargo tank to the vapor connection. Pressure
                                                                                               drop calculations coupled with the location of the
                                                                                               pressure sensing device should be provided such that the
                                                                                               operator is made aware of the actual tank pressure and
                                                                                               can ensure the safety of the system. With sensors located
                                                                                               at the vapor connection additional calculations would not
                                                                                               be necessary.
2014(b)........................  Commenter 18 said that annual inspection is not needed for   We disagree. This requirement was recommended by CTAC.
                                  pressure valves; they are already checked frequently and     Pressure-vacuum valves used with polymerizing cargoes are
                                  the test lever is sufficient for determining proper          subject to polymer buildup on the internal structure of
                                  operation.                                                   the valve which would reduce the flow capacity of the
                                                                                               valve. This could cause a potentially dangerous situation
                                                                                               should the tank be overpressurized and the valve not be
                                                                                               able to handle the required flow rate due to polymer
                                                                                               buildup. Annual inspections are already conducted by many
                                                                                               operators.
2015...........................  Commenters 13 and 18 asked us to clarify whether multiple    Multiple devices are not required. We have revised the
                                  pressure indicating devices will be required on tank         section to clarify that a pressure sensing device, not a
                                  barges to deal with the multiple cargo tank valves that      pressure indicator, is required. A sensor takes the
                                  control cargo transfer on unmanned tank barges.              measurement, whereas the indicator provides a visual
                                                                                               indication of what that measurement is. Therefore, the
                                                                                               indicator should be located at the location from which
                                                                                               the cargo can be controlled. For a vessel that does not
                                                                                               have a pump room, this would typically be where the cargo
                                                                                               pump shutdown controls are located. We have refrained
                                                                                               from mandating a specific location because barges come in
                                                                                               a wide variety of designs and the current language
                                                                                               provides discretion for the vessel owner or operator to
                                                                                               place the pressure indicating device in the most
                                                                                               practical location.
3001(g)........................  Commenters 13 and 18 asked us to include a requirement for   The industry standard incorporated by reference in this
                                  accurate flow rate instrumentation to be provided at         provision provides the requirement.
                                  facilities and on manned tank vessels.

[[Page 42611]]

 
Subpart 5000...................  Commenter 4 said it was not clear how to deal with the       We currently require calculations for multi-breasted
                                  extra pressure drop from multi-breasted vapor control. The   loading that take the additional pressure drop into
                                  transfer procedures should have the means to determine the   consideration, and the calculations must be approved by
                                  additional pressure drop from the inboard vessel's vapor     the MSC. We added a new 39.5001(e) to clarify these
                                  header.                                                      requirements.
5001(a)........................  Commenters 13 and 18 objected to the proposed language       The proposed language was recommended by CTAC. We
                                  requiring both barges engaged in two barge doubled-up        acknowledge that some barges can be owned by one company
                                  loading to be owned and operated by the same entity,         and operated by another company, and have changed ``and''
                                  saying this is not relevant to safe tank barge loading or    to ``or'' in this provision. Most of the barges currently
                                  safe use of marine VCSs.                                     approved for this operation are owned and operated by the
                                                                                               same company. Several are owned by one company but
                                                                                               operated by another company. There are specific
                                                                                               calculation, equipment, and operational requirements for
                                                                                               this operation.
5001(b)........................  Commenters 13 and 18 said that a hose length limitation in   The 25-foot length is standard and, for safety, these
                                  39.5001(b)(3) is not needed and that hoses longer than 25    hoses should be as short as possible. However, we revised
                                  feet present little additional risk.                         39.5001(b)(3) to permit use of longer hoses with MSC
                                                                                               approval, and we made other (non-substantive) changes in
                                                                                               39.5001(b).
[New 5001(e)]..................  ...........................................................  We added new 39.5001(e) in response to Commenter 4's
                                                                                               comment on subpart 39.5000.
5001(e) [now (f)]..............  Commenters 13 and 18 said that requiring compliance with     Both of these requirements are standard conditions of our
                                  additional COTP conditions and requiring identification      current dual barge loading exemption approval letters,
                                  and certification of facilities at which doubled-up cargo    and align with CTAC recommendations. We agree that the
                                  transfer loading operations will be conducted is             identification of specific facilities is not necessary
                                  unnecessary, and also that if additional safety              and have revised this paragraph to delete that proposed
                                  precautions are needed, they should be specified in the      requirement.
                                  initial documents.
6001(c)........................  Commenters 13 and 18 said that complying with the proposed   We disagree. The labeling requirement for individual
                                  labeling requirement will be costly and difficult, and       stripping lines comes from NVIC 1-96, is based on CTAC
                                  that it is not needed because stripping lines already are    recommendations, and is important for safety reasons
                                  identified in easily accessible barge piping diagrams.       because it prevents confusion with cargo lines.
                                                                                               Facilities can use stencils and spread-paint the lines.
6001(f)(1).....................  Commenter 4 asked for clarification of this provision......  We have revised this provision to explain that ``flanged
                                                                                               flexible hoses'' are ``flexible hoses flanged to a
                                                                                               connection.'' This is provided as an alternative to a
                                                                                               fixed vapor header or fixed liquid cargo header.
6001(f)(3).....................  Commenter 4 made an observation with respect to the joint    We followed up with Commenter 4. Because this paragraph
                                  interpretation of this provision and 39.2009.                requires overfill protection according to 39.2009, we
                                                                                               added new 33 CFR 154.2200(b) to address his comments.
6003(a)........................  Commenter 4 said this sounds like an operational             We followed up with Commenter 4. We have revised this
                                  requirement because it does not make sense for a cargo       paragraph to clarify that this is an operational
                                  tank venting system's design pressure to be less than that   requirement and that it does not require a cargo tank
                                  of cargo tank.                                               venting system's design pressure to be less than that of
                                                                                               cargo tank.
6003(b)........................  Commenter 18 said that tank barges do not need individual    We agree and revised this provision as we did for 39.2015.
                                  cargo tank pressure sensors because one sensor can detect    We also specified the relevant paragraphs of the
                                  pressure throughout the barge via the common vapor system.   referenced section in 33 CFR, and changed the wording of
                                                                                               the required label to avoid confusion between sensors and
                                                                                               indicators.
--------------------------------------------------------------------------------------------------------------------------------------------------------

V. Incorporation by Reference

    The Director of the Federal Register has approved the material in 
33 CFR 154.106 and 46 CFR 39.1005 for incorporation by reference under 
5 U.S.C. 552 and 1 CFR part 51. Copies of the material are available 
from the sources listed in those sections.

VI. Regulatory Analyses

    We developed this final rule after considering numerous statutes 
and executive orders related to rulemaking. Below we summarize our 
analyses based on 13 of these statutes or executive orders.

A. Regulatory Planning and Review

    Executive Orders 12866 (``Regulatory Planning and Review'') and 
13563

[[Page 42612]]

(``Improving Regulation and Regulatory Review'') direct agencies to 
assess the costs and benefits of available regulatory alternatives and, 
if regulation is necessary, to select regulatory approaches that 
maximize net benefits (including potential economic, environmental, 
public health and safety effects, distributive impacts, and equity). 
Executive Order (E.O.) 13563 emphasizes the importance of quantifying 
both costs and benefits, of reducing costs, of harmonizing rules, and 
of promoting flexibility. This final rule is not a significant 
regulatory action under section 3(f) of E.O. 12866, Regulatory Planning 
and Review, and does not require an assessment of potential costs and 
benefits under section 6(a)(3) of that Order. The Office of Management 
and Budget (OMB) has not reviewed it under that E.O.
    A final Regulatory Analysis and Regulatory Flexibility Analysis is 
available in the docket as indicated under ADDRESSES. A summary of the 
Regulatory Analysis follows:
    The final rule revises the existing regulations (33 CFR parts 154, 
155, and 156, 46 CFR parts 35 and 39) regarding the safety of facility 
and vessel VCSs. The final rule amends the regulations to make VCS 
requirements more compatible with other Federal and State environmental 
requirements and reflect industry advances in VCS technology, and 
codifies the voluntary standards for VCSs at TBCFs. The final rule 
increases the safety of operations by regulating the design, 
installation, and use of VCSs, but will not require anyone to install 
or use VCSs.
    The final rule provides additional requirements for VCS equipment, 
compliance documentation, training, and operations. In general, the 
final rule:
     Adds new requirements for certifications, 
recertifications, periodic operational reviews, and approval processes 
for certain operations concerning VCSs to promote maritime safety and 
marine environmental protection. These various requirements mainly 
affect facilities with VCSs, including TBCFs;
     Requires new training or amends training requirements to 
improve safety. These training requirements affect facilities with VCSs 
(including TBCFs) and tank barge owners and operators;
     Permits pigging; however, there will be some requirements 
to receive Coast Guard permission to do so;
     Provides foreign-flagged tank barges some flexibility for 
certification procedures;
     Adds new requirements for certain equipment on U.S.-
flagged tank barges and at TBCFs and other facilities with VCSs to 
improve safety and environmental protection; and
     Removes certain requirements in order to offer cost 
savings. This change mainly impacts facilities with VCSs.
    The final rule is necessary to reflect the expansion of Federal and 
State regulations for VCSs since the current regulations were adopted 
in 1990, and to reflect technological advances over that period. 
Without revisions to these regulations by the Coast Guard, market 
failures persist in creating situations of uncompensated risk. In the 
case of this final rule, the uncompensated risks accrue to the public, 
maritime commerce, and mariners in the form of safety and environmental 
hazards and potential losses to equipment and cargo as well as the 
opportunity cost resulting from equipment, parts of facilities, or 
vessels being temporarily out of operation due to accidents.
    The Regulatory Analysis provides an evaluation of the economic 
impacts associated with this final rule. Table 2 below provides a 
summary of the final rule's costs and benefits.

              Table 2--Summary of the Final Rule's Impacts
------------------------------------------------------------------------
           Category                             Summary
------------------------------------------------------------------------
Applicability................  Owners of U.S.-flagged tank barges and
                                foreign-flagged tank barges as defined
                                by 46 CFR Subchapter D; CEs for VCSs;
                                TBCFs.
Affected Population..........  280 facilities with VCSs, 24 CEs, 15
                                TBCFs, 216 U.S.-flagged tank barge
                                owners, and owners of 338 foreign-
                                flagged tank barges.
10-Year Costs (7% discount     $6.86 million.
 rate).
10-Year Quantified Benefits    Benefits: $2.79 million.
 and Cost Savings (7%          Additional Cost Savings: $5.956 million
 discount rate).                (regulated public).
                               Additional Cost Savings: $0.164 million
                                (Government).
                               Total Benefits and Other Savings: $8.914
                                million.
10-year Net Benefits of Final  $8.914--$6.86 = $2.054 million.
 Rule (7% discount rate).
Unquantified Benefits........  * Update industry practices.
                               * Aid to quality control.
                               * Preclusion of diminution of safety.
                               * Provide for an opportunity for more
                                competition.
------------------------------------------------------------------------
The costs, quantified benefits, and cost savings are the totals for the
  10-year period of analysis. These costs include industry costs plus
  the Government's costs.

    Table 3 shows the changes in costs, benefits, and additional cost 
savings from the NPRM to the Final Rule. As can be seen, costs have 
been reduced, benefits increased and cost savings increased as a result 
of the changes delineated in Table 1. Few comments questioned cost 
estimates from the NPRM, and thus the original regulatory assessment is 
largely retained.

                      Table 3--Comparison of Final Rule and NPRM Impacts (7% Discount Rate)
----------------------------------------------------------------------------------------------------------------
                                                                                                 Additional cost
                                                                  Cost            Benefits           savings
----------------------------------------------------------------------------------------------------------------
NPRM......................................................        $8,822,113        $1,944,359        $5,228,965
Final Rule................................................         6,864,404         2,791,303         6,120,064
----------------------------------------------------------------------------------------------------------------

[[Page 42613]]

    The final rule amends several existing regulations and these 
amendments permit cost savings to the regulated public. Cost savings 
would result from the removal of the requirement on standards for flame 
arresters (33 CFR part 154, Appendix B). Additionally, the various 
changes preclude the need for the regulated public to continue to file 
exemption requests, which saves administrative labor and research. The 
final rule removes the requirement for a separate overfill control 
panel on the dock (33 CFR 154.2102, 46 CFR 39.2009). The provisions 
include an alternative test program for compliance with the VCS 
analyzer and pressure sensor safety testing requirements. The final 
rule allows an alternative method of compliance with testing and 
inspection requirements of 33 CFR 156.170. The final rule's changes on 
enrichment requirements would benefit the regulated public by 
necessitating the use of less enriching gas. As well, the Coast Guard 
estimates the final rule would benefit the public by preventing marine 
casualties.
Affected Population
    Based on Coast Guard data, we estimate that this final rule affects 
280 facilities with VCSs, 24 CEs, 15 TBCFs, 216 U.S.-flagged tank barge 
owners, and owners of 338 foreign-flagged tank barges.
Costs
    The final rule requires several actions by affected parties. These 
actions include training, periodic operational reviews, and 
recertifications. Over a 10-year period of analysis, we estimate the 
total present value cost of the final rule to be $6.86 million at a 7 
percent discount rate, and $8.08 million at a 3 percent discount rate. 
Over the same 10-year period of analysis, we estimate the annualized 
cost of the final rule to be $977,000 (rounded to nearest thousand) at 
7 percent and $947,000 (rounded) at 3 percent. The following table 
presents, by year, the costs of the final rule.

                                     Table 4--Estimated Costs of Final Rule
----------------------------------------------------------------------------------------------------------------
                          Year                             Discounted 7%      Discounted 3%       Undiscounted
----------------------------------------------------------------------------------------------------------------
1......................................................         $2,219,312         $2,305,498         $2,374,663
2......................................................            657,334            709,380            752,581
3......................................................            614,330            688,718            752,581
4......................................................            574,141            668,659            752,581
5......................................................            548,859            664,039            769,803
6......................................................            512,952            644,698            769,803
7......................................................            479,394            625,920            769,803
8......................................................            448,032            607,689            769,803
9......................................................            418,722            589,990            769,803
10.....................................................            391,329            572,806            769,803
                                                        --------------------------------------------------------
    Total..............................................          6,864,404          8,077,397          9,251,224
                                                        --------------------------------------------------------
        Annualized.....................................            977,337            946,917            925,122
----------------------------------------------------------------------------------------------------------------

    We estimate the requirements for facilities as the primary cost 
driver throughout the 10-year period of analysis. The requirements for 
facilities range from certifications, recertifications, and periodic 
operational reviews. Table 5 shows a summary of annualized costs by 
requirement category.

       Table 5--Summary of the Annualized Costs of the Final Rule
                                   [$]
------------------------------------------------------------------------
                                                       Annualized *
                    Category                     -----------------------
                                                      7%          3%
------------------------------------------------------------------------
Facility Costs..................................    $751,190   $ 738,358
TBCF Costs......................................     110,926     103,646
Tank Barge Costs................................     111,390     101,524
Government Costs................................       3,831       3,389
                                                 -----------------------
  Total.........................................     977,337     946,917
------------------------------------------------------------------------
* Rounded to the nearest dollar.

    The final rule's changes that require the regulated public to 
follow operational changes such as certifications, recertifications, 
and periodic operational reviews comprise approximately 58 percent of 
the costs throughout the 10-year period of analysis. The final rule's 
changes to require training, including amendments to PIC training, 
amount to 20 percent of the total costs. Table 6 presents a summary of 
the costs by requirement as a percentage of the total annualized costs 
of the final rule.

       Table 6--Summary of Costs by Requirement of the Final Rule
                  [As a percentage of annualized cost]
------------------------------------------------------------------------
                                                              Annualized
                        Requirements                             cost
                                                               (percent)
------------------------------------------------------------------------
Operations Cost.............................................          58
Protection Equipment........................................          10
Training including PIC......................................          20
Misc other including government and pigging.................          12
                                                             -----------
  Total (rounded to the nearest one)........................         100
------------------------------------------------------------------------

Benefits
    The final rule amends existing regulations regarding VCSs in marine 
activities. We are issuing these amendments to existing standards to 
reflect technological improvements and to promote maritime safety and 
marine environmental protection. The final rule offers provisions for 
more practicable and efficient management of hazardous materials, and 
contains some provisions that offer facilities the opportunity to 
reduce maintenance costs.
    The final rule provides several benefits. Benefits of the final 
rule include (1) Energy savings which would accrue from the use of less 
enriching gas, (2) avoided costs associated with the elimination of 
existing standards on liquid seal and (3) prevented casualties. Other 
benefits that USCG describes qualitatively include operational 
efficiency and enhanced safety. USCG estimates the 10-year quantified 
benefits to be at least $2.79 million (7 percent discount rate).
    In addition to these benefits, we estimate that the final rule will 
result in additional cost savings to the regulated public and the 
Government. These cost savings derive from tasks which would no longer 
have to be performed due to the final rule's changes and changes to 
various operational requirements which result in less resources being 
used. For regulated entities, the cost savings over

[[Page 42614]]

a 10-year period are estimated to be $5.96 million (7 percent discount 
rate) and Government cost savings are estimated to be $164,000 (7 
percent discount rate, rounded to the nearest thousand).
    See the final Regulatory Analysis available in the docket for a 
detailed analysis of the costs and benefits of this rulemaking.
    The Coast Guard considered the following alternatives when 
developing the final rule:
    1. Take no action.
    2. Adopt all CTAC recommendations.
    3. Issue a new policy letter or NVIC.
    4. Require annual certifications.
    5. Develop a different timetable for small entities.
    6. Provide an exemption for small entities (from the rule or any 
part thereof).
    Alternatives 1 and 2 are not preferred because they do not offer 
solutions to issues identified earlier in the preamble. They also do 
not allow for cost savings opportunities that arise from changes in the 
final rule. Alternative 3 communicates information to the regulated 
public, and although it would potentially increase public safety, it 
would not allow for cost savings opportunities outlined in the final 
rule, nor would it update the regulatory text. As such, it offers no 
assurance of compliance and no enforcement mechanism. Alternative 4 is 
feasible but costly. It is not anticipated to increase benefits or to 
increase cost savings despite its higher cost. Alternative 5 offers all 
benefits and cost savings of the final rule, albeit at a later date. 
Because of the benefits and cost savings, a delay serves no useful 
purpose to the regulated public. For some regulated entities such as 
facilities and tank barge owners, the final rule offers a delayed 
effective date and some provisions do not accrue costs immediately; 
also, other provisions do not apply unless specific changes to VCSs 
warrant them (e.g., recertifications). Alternative 6 is feasible. The 
Coast Guard notes that many final provisions do not apply to some small 
entities since they are either already in compliance or will benefit 
from the changes in the final rule. The final changes are low in cost 
on the individual level and have a low implementation burden. An 
exemption would preclude small entities from pursuing cost savings that 
would be provided by the final rule. A small business exemption would 
cause both costs and benefits as well as cost savings to decline in 
total for the regulated public. These small entities face many of the 
same environmental and safety hazards other business entities face; and 
these final requirements would address these hazards. Without them, 
there would be an uncompensated risk to small entities and their 
employees. Because this is a safety regulation and because of the 
continued safety hazards, such an alternative represents a 
disproportionate tolerance of risks to safety, and the Coast Guard 
could not pursue this option.

B. Small Entities

    Under the Regulatory Flexibility Act (5 U.S.C. 601-612), we have 
considered whether this final rule would have a significant economic 
impact on a substantial number of small entities. The term ``small 
entities'' comprises small businesses, not-for-profit organizations 
that are independently owned and operated and are not dominant in their 
fields, and governmental jurisdictions with populations of less than 
50,000.
    A combined final Regulatory Analysis and Regulatory Flexibility 
Analysis discussing the impact of this final rule on small entities is 
available in the docket as indicated in the ADDRESSES section of this 
preamble.
    Based on our analysis, we estimate that small entities affected by 
this final rule are primarily small businesses consisting of CEs, 
owners and operators of TBCFs, tank barges, and facilities with VCSs. 
We did not find data to suggest small not-for-profit organizations or 
small government entities will be directly affected by this final rule. 
In addition, CEs will incur no additional costs due to this final rule 
because no additional tasks or equipment are required of them; 
therefore, they are not analyzed further. We evaluated the impact on 
small entities for each segment of industry that incur additional 
costs, since this final rule requires different provisions for owners 
and operators of TBCFs, tank barges, and facilities with VCSs.
    Based on our assessment, 54 percent of tank barge owners affected 
by this final rule will be considered small by Small Business 
Administration (SBA) size standards. We estimate 100 percent of these 
small entities will incur cost impacts that are 1 percent or less than 
their annual revenues during the highest cost year (implementation 
year), as well as annually.
    We estimate 15 percent of facilities with VCSs will be considered 
small by SBA size standards. We estimate that almost 86 percent of 
these small entities will incur annual cost impacts that are 1 percent 
or less than their annual revenues during the highest cost year 
(implementation year), as well as annually. Another 14 percent will 
have cost impacts between 1 to 3 percent of their annual revenue.
    We estimate that all of the TBCFs are considered small by SBA size 
standards. We estimate 60 percent of these TBCFs will incur cost 
impacts that are potentially greater than 3 percent of their annual 
revenues during the highest cost year (implementation year). It should 
be noted that the final rule will codify existing voluntary standards 
for TBCFs. Consequently, we anticipate the cost impacts to TBCFs may be 
overestimates.
    Consequently, we believe there will be no significant economic 
impacts for CEs, facilities with VCSs, and owners/operators of tank 
barges. However, there may be economic impacts for some TBCFs.

C. Assistance for Small Entities

    Under section 213(a) of the Small Business Regulatory Enforcement 
Fairness Act of 1996 (Pub. L. 104-121), we offered to assist small 
entities in understanding this final rule so that they could better 
evaluate its effects on them and participate in the rulemaking. If the 
final rule will affect your small business, organization, or 
governmental jurisdiction and you have questions concerning its 
provisions or options for compliance, please consult Ms. Sara Ju at the 
address listed under ADDRESSES. The Coast Guard will not retaliate 
against small entities that question or complain about this final rule 
or any policy or action of the Coast Guard.
    Small businesses may send comments on the actions of Federal 
employees who enforce, or otherwise determine compliance with, Federal 
regulations to the Small Business and Agriculture Regulatory 
Enforcement Ombudsman and the Regional Small Business Regulatory 
Fairness Boards. The Ombudsman evaluates these actions annually and 
rates each agency's responsiveness to small business. If you wish to 
comment on actions by employees of the Coast Guard, call 1-888-REG-FAIR 
(1-888-734-3247).

D. Collection of Information

    This final rule requires an amendment to an existing collection of 
information (1625-0060) as defined by the Paperwork Reduction Act of 
1995 (44 U.S.C. 3501-3520). As defined in 5 CFR 1320.3(c), ``collection 
of information'' comprises reporting, recordkeeping, monitoring, 
posting, labeling, and other similar actions. The title and description 
of the information collections, a description of those who must collect 
the information, and an estimate of the total annual burden follow. The 
estimate covers the time for

[[Page 42615]]

reviewing instructions, searching existing sources of data, gathering 
and maintaining the data needed, and completing and reviewing the 
collection.
    Title: Vapor Control Systems for Facilities and Tank Vessels.
    OMB Control Number: 1625-0060.
    Summary of the Collection of Information: This collection of 
information ensures industry compliance with safety standards for VCSs. 
The final rule requires recordkeeping and reporting on the design and 
use of VCSs. The final rule contains collection of information 
requirements which include: Certifications, recertifications, periodic 
operational reviews, approval requests, reviews of operating manuals, 
failure analyses, operational review letters, and relabeling. The 
collection of information will aid the Coast Guard and industry in 
assuring safe practices associated with VCSs.
    Need for Information: The Coast Guard needs this information to 
ensure industry use of VCS requirements are compatible with new Federal 
and State environmental requirements, to reflect industry advances in 
VCS technology, and to ensure the safe design and operation of a VCS at 
a TBCF.
    Final Use of Information: The Coast Guard will use this information 
to determine whether an entity meets the statutory requirements.
    Description of the Respondents: The respondents are owners/
operators of TBCFs, facilities, and tank vessels with vapor control 
systems. Reporting and recordkeeping requirements will be completed by 
facility and vessel owners/operators, PICs, engineers, maintenance 
workers, and operations managers of affected tank barges, TBCFs, 
facilities, and CEs.
    Number of Respondents: The burden change of this collection of 
information includes certifications, recertifications, approval 
requests, reviewing operating manuals, preparing operational review 
letters, and relabeling. This collection of information applies to 
various owners and operators of tank barges, facilities, TBCFs, and 
CEs. We estimate the total number of respondents is 535.
    Frequency of Responses: This final rule will vary the number of 
responses each year by requirement. Some actions are one time only and 
others are required more frequently.
    Burden of Response: This collection of information applies to CEs, 
tank barge owners/operators and owners/operators of facilities with 
VCSs. The Coast Guard estimates the total number of respondents is 535. 
The burden of response varies by collection of information requirement.
    Estimate of Total Annual Burden: The total annual burden is 
estimated to increase as a result of the final rule by 8,041 hours from 
the previously approved 2,789 hours.
    As required by the Paperwork Reduction Act of 1995 (44 U.S.C. 
3507(d)), we will submit a copy of this final rule to OMB for its 
review of the collection of information.
    You are not required to respond to a collection of information 
unless it displays a currently valid control number from OMB. Before 
the Coast Guard can enforce the collection of information requirements 
in this final rule, OMB must approve the action.

E. Federalism

    A rule has implications for federalism under E.O. 13132, 
Federalism, if it has a substantial direct effect on the States, on the 
relationship between the national government and the States, or on the 
distribution of power and responsibilities among the various levels of 
government. In our NPRM, found at 75 FR 65152, we previously stated 
that this rule had no implications for federalism. We have re-evaluated 
this rule under E.O. 13132 and under the authorities granted to the 
Coast Guard to promulgate regulations concerning marine vapor control 
systems and now conclude that certain provisions of these regulations 
do have implications for federalism. Our analysis follows.
    For those regulations promulgated under the authority of 46 U.S.C. 
3306, there are no implications for federalism. It is well settled that 
States may not regulate in categories reserved for regulation by the 
Coast Guard. It is also well settled, now, that all of the categories 
covered in 46 U.S.C. 3306, 3703, 7101, and 8101 (design, construction, 
alteration, repair, maintenance, operation, equipping, personnel 
qualification, and manning of vessels) are within the fields foreclosed 
from regulation by the States. (See the decision of the Supreme Court 
in the consolidated cases of United States v. Locke and Intertanko v. 
Locke, 529 U.S. 89, 120 S.Ct. 1135 (March 6, 2000).) Under 46 U.S.C. 
3703, Congress directed the Secretary to prescribe equipment 
regulations for tank vessels necessary to protect against hazards to 
life, property, and the marine environment, as well as to navigation 
and vessel safety. Provisions of these regulations, promulgated under 
the authority of 46 U.S.C. 3703, increase operational safety and the 
protection of the marine environment by setting the standards for the 
use, design, and installation of vapor control systems on inspected 
vessels. Because States may not promulgate rules within this category, 
there are no implications for federalism under Executive Order 13132.
    For those regulations promulgated under the authority of 42 U.S.C. 
7511b(f)(2), these provisions do have implications for federalism. It 
is clear that Congress intended these regulations to have limited 
preemptive effect over state or local law based on the language found 
in 42 U.S.C. 7511b(f)(2). In this section, Congress mandated the Coast 
Guard to issue regulations to ``ensure the safety of the equipment and 
operations which are to control emissions from the loading and 
unloading of tank vessels, under section 3703 of title 46 and section 
1225 of title 33.'' Congress further explained that any standards for 
the emission of VOCs established by a ``State or political subdivision 
regarding emissions from the loading and unloading of tank vessels 
shall be consistent with the regulations regarding safety of the 
Department in which the Coast Guard is operating.'' In choosing this 
language, and specifically including section 1225 of title 33, Congress 
expressly intended Coast Guard regulations to preempt State or local 
laws or regulations regarding emission control equipment and procedures 
for waterfront facilities transferring oil or hazardous materials, but 
only in so far as a State or local law or regulation conflicts with the 
federal regulation.

F. Unfunded Mandates Reform Act

    The Unfunded Mandates Reform Act of 1995 (2 U.S.C. 1531-1538) 
requires Federal agencies to assess the effects of their discretionary 
regulatory actions. In particular, the Act addresses actions that may 
result in the expenditure by a State, local, or Tribal government, in 
the aggregate, or by the private sector of $100,000,000 (adjusted for 
inflation) or more in any 1 year. Though this final rule will not 
result in such an expenditure, we do discuss the effects of this final 
rule elsewhere in this preamble.

G. Taking of Private Property

    This final rule will not cause a taking of private property or 
otherwise have taking implications under E.O. 12630, Governmental 
Actions and Interference with Constitutionally Protected Property 
Rights.

H. Civil Justice Reform

    This final rule meets applicable standards in sections 3(a) and 
3(b)(2) of E.O. 12988, Civil Justice Reform, to

[[Page 42616]]

minimize litigation, eliminate ambiguity, and reduce burden.

I. Protection of Children

    We have analyzed this final rule under E.O. 13045, Protection of 
Children from Environmental Health Risks and Safety Risks. This final 
rule is not an economically significant rule and will not create an 
environmental risk to health or risk to safety that might 
disproportionately affect children.

J. Tribal Governments

    This final rule does not have Tribal implications under E.O. 13175, 
Consultation and Coordination with Indian Tribal Governments, because 
it does not have a substantial direct effect on one or more Indian 
tribes, on the relationship between the Federal Government and Indian 
tribes, or on the distribution of power and responsibilities between 
the Federal Government and Indian tribes.

K. Energy Effects

    We have analyzed this final rule under E.O. 13211, Actions 
Concerning Regulations That Significantly Affect Energy Supply, 
Distribution, or Use. We have determined that it is not a ``significant 
energy action'' under that E.O. because it is not a ``significant 
regulatory action'' under E.O. 12866 and is not likely to have a 
significant adverse effect on the supply, distribution, or use of 
energy. The Administrator of the Office of Information and Regulatory 
Affairs has not designated it as a significant energy action. 
Therefore, this final rule does not require a Statement of Energy 
Effects under E.O. 13211.

L. Technical Standards

    The National Technology Transfer and Advancement Act (15 U.S.C. 272 
note) directs agencies to use voluntary consensus standards in their 
regulatory activities unless the agency provides Congress, through the 
Office of Management and Budget, with an explanation of why using these 
standards would be inconsistent with applicable law or otherwise 
impractical. Voluntary consensus standards are technical standards 
(e.g., specifications of materials, performance, design, or operation; 
test methods; sampling procedures; and related management systems 
practices) that are developed or adopted by voluntary consensus 
standards bodies.
    This final rule uses voluntary consensus standards from the 
following organizations: American Petroleum Institute, American 
National Standards Institute, ASTM, International Electrotechnical 
Commission, National Electrical Manufacturers Association, National 
Fire Protection Association, Oil Companies International Marine Forum, 
and Underwriters Laboratories, Inc. This final rule also uses technical 
standards other than voluntary consensus standards from the 
International Maritime Organization. The sections that reference these 
standards and the locations of these standards are listed in 33 CFR 
154.106 and 46 CFR 39.1005.

M. Environment

    We have analyzed this final rule under Department of Homeland 
Security Management Directive 023-01 and Commandant Instruction 
M16475.lD, which guide the Coast Guard in complying with the National 
Environmental Policy Act of 1969 (42 U.S.C. 4321-4370f), and have 
concluded that this action is one of a category of actions that do not 
individually or cumulatively have a significant effect on the human 
environment. This final rule is categorically excluded under section 
2.B.2, figure 2-1, paragraph (34)(d) of the Instruction and under 
section 6(a) of the ``Appendix to National Environmental Policy Act: 
Coast Guard Procedures for Categorical Exclusions, Notice of Final 
Agency Policy'' (67 FR 48244, July 23, 2002). This final rule involves 
regulations concerning vessel operation safety standards and safety 
equipment. An environmental analysis checklist and a categorical 
exclusion determination are available in the docket where indicated 
under ADDRESSES.

List of Subjects

33 CFR Part 154

    Alaska, Fire prevention, Hazardous substances, Incorporation by 
reference, Oil pollution, Reporting and recordkeeping requirements.

33 CFR Part 155

    Alaska, Hazardous substances, Oil pollution, Reporting and 
recordkeeping requirements.

33 CFR Part 156

    Hazardous substances, Oil pollution, Reporting and recordkeeping 
requirements, Water pollution control.

46 CFR Part 35

    Cargo vessels, Marine safety, Navigation (water), Occupational 
safety and health, Reporting and recordkeeping requirements, Seamen.

46 CFR Part 39

    Cargo vessels, Fire prevention, Hazardous materials transportation, 
Incorporation by reference, Marine safety, Occupational safety and 
health, Reporting and recordkeeping requirements.
    For the reasons discussed in the preamble, the Coast Guard amends 
33 CFR parts 154, 155, and 156, and 46 CFR parts 35 and 39 as follows:

Title 33

PART 154--FACILITIES TRANSFERRING OIL OR HAZARDOUS MATERIAL IN BULK

0
1. The authority citation for part 154 is revised to read as follows:

    Authority:  33 U.S.C. 1225, 1231, 1321(j)(1)(C), (j)(5), (j)(6), 
and (m)(2); sec. 2, E.O. 12777, 56 FR 54757; Department of Homeland 
Security Delegation No. 0170.1. Subpart F is also issued under 33 
U.S.C. 2735. Vapor control recovery provisions of Subpart P are also 
issued under 42 U.S.C. 7511b(f)(2).

0
2. Revise Sec.  154.106 to read as follows:

Sec.  154.106  Incorporation by reference.

    (a) Certain material is incorporated by reference (IBR) into this 
part with the approval of the Director of the Federal Register under 5 
U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that 
specified in this section, the Coast Guard must publish a notice of 
change in the Federal Register and the material must be available to 
the public. All approved material is available for inspection at the 
Coast Guard, Office of Design and Engineering Standards (CG-ENG), 2100 
2nd Street SW., Stop 7126, Washington, DC 20593-7126, telephone 202-
372-1418 and at the National Archives and Records Administration 
(NARA). For information on the availability of this material at NARA, 
call 202-741-6030 or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Also, it is 
available from the sources indicated in this section.
    (b) American National Standards Institute (ANSI), 25 West 43rd 
Street, 4th floor, New York, NY 10036.
    (1) ANSI B16.5, Steel Pipe Flanges and Flanged Fittings, 1988, IBR 
approved for Sec. Sec.  154.500(d), 154.2100(b), 154.2101(d), 
154.2202(d), and Appendix A, 7.3 to part 154.
    (2) ANSI B16.24, Bronze Pipe Flanges and Flange Fittings Class 150 
and 300, 1979, IBR approved for Sec. Sec.  154.500(d) and 154.2100(b).
    (3) ANSI B31.3, Chemical Plant and Petroleum Refinery Piping, 1987 
(including B31.3a-1988, B31.3b-1988, and B31.3c-1989 addenda), IBR

[[Page 42617]]

approved for Sec. Sec.  154.510(a) and 154.2100(b).
    (c) American Petroleum Institute (API), 1220 L Street NW., 
Washington, DC 20005.
    (1) API Standard 2000, Venting Atmospheric and Low-Pressure Storage 
Tanks (Non-refrigerated and Refrigerated), Third Edition, January 1982 
(reaffirmed December 1987)(``API 2000''), IBR approved for Sec. Sec.  
154.2103(j) and 154.2203(e), (k), and (l).
    (2) API Recommended Practice 550, Manual on Installation of 
Refinery Instruments and Control Systems, Part II--Process Stream 
Analyzers, Section 1--Oxygen Analyzers, Fourth Edition, February 1985 
(``API 550''), IBR approved for Sec.  154.2107(f).
    (d) American Society of Mechanical Engineers (ASME), Three Park 
Avenue, New York, NY 10016.
    (1) ASME B16.34 -2004, Valves--Flanged, Threaded, and Welding End, 
issued September 2, 2005, IBR approved for Sec.  154.2100(b).
    (2) [Reserved]
    (e) ASTM International (ASTM), 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959.
    (1) ASTM F631-93, Standard Guide for Collecting Skimmer Performance 
Data in Controlled Environments (``ASTM F631''), IBR approved for 
Appendix C, 6.3 to part 154.
    (2) ASTM F715-95, Standard Test Methods for Coated Fabrics Used for 
Oil Spill Control and Storage (``ASTM F715''), IBR approved for 
Appendix C, 2.3.1 to part 154.
    (3) ASTM F722-82 (Reapproved 2008), Standard Specification for 
Welded Joints for Shipboard Piping Systems (``ASTM F722''), approved 
November 1, 2008, IBR approved for Appendix A, 8.4, 8.6 to part 154.
    (4) ASTM F1122-87 (Reapproved 1992), Standard Specification for 
Quick Disconnect Couplings (``ASTM F1122''), IBR approved for Sec.  
154.500(d).
    (5) ASTM F1155-98, Standard Practice for Selection and Application 
of Piping System Materials (``ASTM F1155''), IBR approved for Appendix 
A, 7.1, 8.4 to part 154.
    (6) ASTM F1273-91 (Reapproved 2007) Standard Specification for Tank 
Vent Flame Arresters (``ASTM F1273''), approved December 1, 2007, IBR 
approved for Sec. Sec.  154.2001 and 154.2105(j).
    (f) International Electrotechnical Commission (IEC), Bureau Central 
de la Commission Electrotechnique Internationale, 3, rue de 
Varemb[eacute], P.O. Box 131, CH--1211 Geneva 20, Switzerland.
    (1) IEC 60309-1 Plugs, Socket-Outlets and Couplers for Industrial 
Purposes--Part 1: General Requirements, Edition 4.2 2012-06, IBR 
approved for Sec.  154.2102(b).
    (2) IEC 60309-2 Plugs, Socket-Outlets and Couplers for Industrial 
Purposes--Part 2: Dimensional Interchangeability Requirements for Pin 
and Contact-tube Accessories, Edition 4.2 2012-05, IBR approved for 
Sec.  154.2102(b).
    (g) National Electrical Manufacturers Association (NEMA), 1300 
North 17th Street, Suite 1752, Rosslyn, VA 22209.
    (1) ANSI NEMA WD-6--Wiring Devices, Dimensional Requirements, 1988 
(``NEMA WD-6''), IBR approved for Sec.  154.2102(a).
    (2) [Reserved]
    (h) National Fire Protection Association (NFPA), 1 Batterymarch 
Park, Quincy, MA 02169-7471.
    (1) NFPA 51B, Standard for Fire Prevention in Use of Cutting and 
Welding Processes, 1994, IBR approved for Sec.  154.735(l).
    (2) NFPA 70, National Electrical Code, 1987 (``NFPA 70 (1987)''), 
IBR approved for Sec.  154.735(q).
    (3) NFPA 70, National Electrical Code, 2011 (``NFPA 70 (2011)''), 
IBR approved for Sec. Sec.  154.2100(c) and 154.2102(a).
    (i) Oil Companies International Marine Forum (OCIMF), 29 Queen 
Anne's Gate, London, SW1H 9BU, England.
    (1) International Safety Guide for Oil Tankers and Terminals, Fifth 
Ed., 2006 (``ISGOTT''), IBR approved for Sec. Sec.  154.735(s), 
154.2101(g), and 154.2203(m).
    (2) [Reserved]
    (j) Underwriters Laboratories, Inc. (UL), 333 Pfingsten Road, 
Northbrook, IL 60062.
    (1) UL 525 Standard for Flame Arresters, 8th Edition, May 9, 2008, 
IBR approved for Sec. Sec.  154.2001 and 154.2105(j).
    (2) [Reserved]

0
3. In Sec.  154.310, revise paragraph (b) to read as follows:

Sec.  154.310  Operations manual: Contents.

* * * * *
    (b)(1) The operations manual must contain a description of the 
facility's vapor control system (VCS), if the facility--
    (i) Collects vapor emitted from vessel cargo tanks for recovery, 
destruction, or dispersion; or
    (ii) Balances or transfers vapor to or from vessel cargo tanks.
    (2) The VCS description required by paragraph (b)(1) of this 
section must include a line diagram or simplified piping and 
instrumentation diagram (P&ID) of the facility's VCS piping, including 
the location of each valve, control device, pressure-vacuum relief 
valve, pressure indicator, flame arrester, and detonation arrester;
    (3) The VCS description required by paragraph (b)(1) of this 
section must describe the design and operation of its--
    (i) Vapor line connection;
    (ii) Startup and shutdown procedures;
    (iii) Steady-state operating procedures;
    (iv) Provisions for dealing with pyrophoric sulfide (for facilities 
which handle inerted vapors of cargoes containing sulfur);
    (v) Alarms and shutdown devices; and
    (vi) Pre-transfer equipment inspection requirements.
    (4) The VCS description required by paragraph (b)(1) of this 
section must include all test procedures and a checklist for use during 
the testing of the VCS required by 33 CFR 156.170(g). The test 
procedures must specify--
    (i) All tests required for initial certification under 33 CFR 
154.2022(d);
    (ii) All components that are to be tested; and
    (iii) Procedures for testing each component.
    (5) The VCS description required by paragraph (b)(1) of this 
section must include--
    (i) A list of all cargoes the VCS is approved to control; and
    (ii) Copies of any Coast Guard letters exempting the VCS from 
regulatory requirements.
    (6) The VCS description required by paragraph (b)(1) of this 
section must include detailed operating instructions for a cargo line 
clearance system as described in 33 CFR 154.2104, if such a system is 
used by a facility;
    (7) The VCS description required by paragraph (b)(1) of this 
section must include the following for a tank barge cleaning facility:
    (i) A physical description of the facility and facility plan 
showing mooring areas, locations where cleaning operations are 
conducted, control stations, and locations of safety equipment;
    (ii) The sizes, types, and number of tank barges from which the 
facility can conduct cleaning operations simultaneously; and
    (iii) The minimum number of persons required to be on duty during 
cleaning operations and the duties of each.
* * * * *

0
4. Revise Sec.  154.500 to read as follows:

Sec.  154.500  Hose assemblies.

    Each hose assembly used for transferring oil or hazardous material 
must meet the following requirements:

[[Page 42618]]

    (a) The minimum design burst pressure for each hose assembly must 
be at least four times the sum of the pressure of the relief valve 
setting (or four times the maximum pump pressure when no relief valve 
is installed) plus the static head pressure of the transfer system, at 
the point where the hose is installed.
    (b) The maximum allowable working pressure (MAWP) for each hose 
assembly must be more than the sum of the pressure of the relief valve 
setting (or the maximum pump pressure when no relief valve is 
installed) plus the static head pressure of the transfer system, at the 
point where the hose is installed.
    (c) Each nonmetallic hose must be usable for oil or hazardous 
material service.
    (d) Each hose assembly must either have--
    (1) Full threaded connections;
    (2) Flanges that meet ANSI B16.5 or ANSI B16.24 (both incorporated 
by reference, see 33 CFR 154.106); or
    (3) Quick-disconnect couplings that meet ASTM F1122 (incorporated 
by reference, see 33 CFR 154.106).
    (e) Each hose must be marked with one of the following:
    (1) The name of each product for which the hose may be used; or
    (2) For oil products, the words ``OIL SERVICE''; or
    (3) For hazardous materials, the words ``HAZMAT SERVICE--SEE LIST'' 
followed immediately by a letter, number or other symbol that 
corresponds to a list or chart contained in the facility's operations 
manual or the vessel's transfer procedure documents which identifies 
the products that may be transferred through a hose bearing that 
symbol.
    (f) Each hose also must be marked with the following, except that 
the information required by paragraphs (f)(2) and (3) of this section 
need not be marked on the hose if it is recorded in the hose records of 
the vessel or facility, and the hose is marked to identify it with that 
information:
    (1) Maximum allowable working pressure;
    (2) Date of manufacture; and
    (3) Date of the latest test required by 33 CFR 156.170.
    (g) The hose burst pressure and the pressure used for the test 
required by 33 CFR 156.170 must not be marked on the hose and must be 
recorded elsewhere at the facility as described in paragraph (f) of 
this section.
    (h) Each hose used to transfer fuel to a vessel that has a fill 
pipe for which containment cannot practically be provided must be 
equipped with an automatic back pressure shutoff nozzle.

0
5. In Sec.  154.735--
0
a. In paragraph (q), remove the term ``NFPA 70'' and add, in its place, 
the words ``NFPA 70 (1987) (incorporated by reference, see 33 CFR 
154.106)''; and
0
b. Revise paragraph (s) to read as follows:

Sec.  154.735  Safety requirements.

* * * * *
    (s) Tank-cleaning or gas-freeing operations conducted by the 
facility on vessels carrying oil residues or mixtures must be conducted 
in accordance with sections 11.3 and 11.4 of OCIMF ISGOTT (incorporated 
by reference, see 33 CFR 154.106), except that--
    (1) Prohibitions in ISGOTT against the use of recirculated wash 
water do not apply if the wash water is first processed to remove 
product residues;
    (2) The provisions in ISGOTT section 11.3.6.10 that removal of 
sludge, scale, and sediment do not apply if personnel use breathing 
apparatuses which protect them from the tank atmosphere; and
    (3) Upon the request of the facility owner or operator in 
accordance with 33 CFR 154.107, the COTP may approve the use of 
alternate standards to ISGOTT if the COTP determines that the 
alternative standards provide an equal level of protection to the 
ISGOTT standards.
* * * * *

Sec.  154.740  [Amended]

0
6. In Sec.  154.740--
0
a. In paragraph (g), remove the words ``subpart E'' and replace them 
with the words ``subpart P''; and
0
b. In paragraph (i), remove the words ``Sec.  154.804 of this part'' 
and add, in their place, the citation ``33 CFR 154.2020 through 
154.2025''.

Subpart E [Removed]

0
7. Remove subpart E, consisting of Sec. Sec.  154.800 through 154.850.

Subparts J through O [Reserved]

0
8. Add reserved subparts J through O.
0
9. Add subpart P to read as follows:

Subpart P--Marine Vapor Control Systems

General

Sec.
154.2000 Applicability.
154.2001 Definitions.

Certifying Entities

154.2010 Qualifications for acceptance as a certifying entity.
154.2011 Application for acceptance as a certifying entity.

Certification, Recertification, and Operational Review

154.2020 Certification and recertification--owner/operator 
responsibilities.
154.2021 Operational review--owner/operator responsibilities.
154.2022 Certification, recertification, or operational review--
certifying entity responsibilities, generally.
154.2023 Recertification--certifying entity responsibilities, 
generally.
154.2024 Operational review--certifying entity responsibilities, 
generally.
154.2025 Certification, recertification, or operational review--
certifying entity documentation.

Personnel

154.2030 Transfer facilities.
154.2031 Tank barge cleaning facilities.

Transfer Facilities--VCS Design and Installation

154.2100 Vapor control system, general.
154.2101 Requirements for facility vapor connections.
154.2102 Facility requirements for vessel liquid overfill 
protection.
154.2103 Facility requirements for vessel vapor overpressure and 
vacuum protection.
154.2104 Pigging system.
154.2105 Fire, explosion, and detonation protection.
154.2106 Detonation arresters installation.
154.2107 Inerting, enriching, and diluting systems.
154.2108 Vapor-moving devices.
154.2109 Vapor recovery and vapor destruction units.
154.2110 Vapor balancing requirements.
154.2111 Vapor control system connected to a facility's main vapor 
control system.
154.2112 Vapors with potential to polymerize or freeze--Special 
requirements.
154.2113 Alkylene oxides--Special requirements.

Transfer Facilities--Operations

154.2150 General requirements.

Alternative Analyzer and Pressure Sensor Reliability Testing

154.2180 Alternative testing program--Generally.
154.2181 Alternative testing program--Test requirements.

Tank Barge Cleaning Facilities--VCS Design and Installation

154.2200 Applicable transfer facility design and installation 
requirements.
154.2201 Vapor control system--General requirements.
154.2202 Vapor line connections.
154.2203 Facility requirements for barge vapor overpressure and 
vacuum protection.
154.2204 Fire, explosion, and detonation protection.

Tank Barge Cleaning Facilities--Operations

154.2250 General requirements.

[[Page 42619]]

General

Sec.  154.2000  Applicability.

    (a) Except as specified by paragraphs (b) through (g) of this 
section, this subpart applies to--
    (1) Each facility that controls vapors emitted to or from vessel 
cargo tanks;
    (2) A vessel, other than a tank vessel, that has a vapor processing 
unit located onboard for recovery, destruction, or dispersion of vapors 
from a tank vessel's cargo tanks;
    (3) Certifying entities that review, inspect, test, and certificate 
facility vapor control systems (VCSs); or
    (4) A facility VCS that receives cargo vapor from a vessel when the 
VCS is connected to a facility's main VCS that serves plant processing 
areas, such as tank storage areas or tank truck or railcar loading 
areas, unrelated to tank vessel operations. The requirements of this 
subpart apply between the vessel vapor connection and the point where 
the VCS connects to the facility's main VCS.
    (b) Each facility VCS that began operating on or after July 23, 
1990, and that is certified as in compliance with 33 CFR part 154, 
subpart E on August 15, 2013, or each existing tank barge cleaning 
facility VCS that meets the safety Standards of Navigation and Vessel 
Inspection Circular No. 1-96, must comply with 33 CFR part 154, subpart 
P by August 15, 2016. Certifications, approvals of alternatives, and 
grants of exemption in effect on August 15, 2013, remain in effect 
after that date and as specified in the certification, approval, or 
grant.
    (c) A facility with a Coast Guard-approved VCS operating prior to 
July 23, 1990, must comply with 33 CFR 154.2150 but otherwise need not 
comply with this subpart so long as it does not have any design or 
configuration alterations after its approval and receives cargo vapor 
only from the specific vessels for which it was originally approved.
    (d) A facility that uses a vapor balancing system to transfer vapor 
from a railcar or a tank truck to a vessel cargo tank while offloading 
the vessel must obtain approval in writing from the Commandant and make 
that approval available for Coast Guard inspection upon request.
    (e) A facility that transfers vapor from a facility tank to a cargo 
tank of a vessel which is not offloading cargo must obtain approval in 
writing from the Commandant and make that approval available for Coast 
Guard inspection upon request.
    (f) A tank vessel that has a permanent or portable vapor processing 
unit located onboard must comply with applicable requirements of this 
subpart and 46 CFR part 39.
    (g) This subpart does not apply to the collection of vapors of 
liquefied flammable gases as defined in 46 CFR 30.10-39.
    (h) This subpart does not require a facility or a vessel to control 
vapor, or a vessel to take away vapor from facilities; however, if a 
facility operates a VCS to control vapor to or from vessels, the 
facility must comply with the requirements of this subpart.
    (i) In this subpart, regulatory measurements, whether in the metric 
or English system, are sometimes followed by approximate equivalent 
measurements in parentheses, which are given solely for the reader's 
convenience. Regulatory compliance with the regulatory measurement is 
required.

Sec.  154.2001  Definitions.

    As used in this subpart only:
    Ambient temperature means the temperature of the environment in 
which an experiment is conducted or in which any physical or chemical 
event occurs.
    Barge cargo connection means the point in a barge's cargo system 
where it connects with the hose assembly or loading arm used for cargo 
transfer.
    Barge vapor connection means the point in a barge's piping system 
where it connects to a vapor collection hose or arm. This may be the 
same as the barge's cargo connection as it controls vapors during barge 
cargo tank-cleaning operations.
    Base loading means a method of inerting, enriching, or diluting 
such that sufficient inerting, enriching, or diluting gas, for the 
worst concentration of vapor coming from the vessel, is injected into 
the vapor line during the entire loading operation so that the vapor 
mixture is inerted, enriched, or diluted at the maximum loading rate. 
For inerting and enriching systems, ``worst concentration'' means the 
vapor stream contains no cargo vapor. For a diluting system, ``worst 
concentration'' means the vapor stream is saturated with cargo vapor.
    Captain of the Port (COTP) means the Coast Guard Captain of the 
Port as defined in 33 CFR 154.105.
    Certifying entity means an individual or organization accepted by 
the Commandant to review plans, data, and calculations for vapor 
control system designs and to conduct inspections and observe tests of 
vapor control system installations.
    Cleaning operation means any stripping, gas-freeing, or tank-
washing operation of a barge's cargo tanks conducted at a cleaning 
facility.
    Combustible liquid means any liquid that has a flashpoint above 
80[emsp14][deg]F (as determined from an open-cup tester, as used to 
test burning oils) and includes Grade D and Grade E combustible liquids 
defined in 46 CFR 30.10-15.
    Commandant means Commandant (CG-ENG), U.S. Coast Guard, 2100 2nd 
St. SW., Stop 7126, Washington, DC 20593-7126.
    Detonation arrester means a device that is acceptable to the 
Commandant and includes a detonation arrester that is designed, built, 
and tested in accordance with Appendix A of this part or by another 
method acceptable to the Commandant for arresting flames and 
detonations.
    Diluting means introducing a non-flammable, non-combustible, and 
non-reactive gas with the objective of reducing the hydrocarbon content 
of a vapor mixture to below the lower flammable limit so that it will 
not burn.
    Drip leg means a section of piping that extends below piping grade 
to collect liquid passing through the vapor line and that has a 
diameter no more than the diameter of the pipe in which it is 
installed.
    Elevated temperature means the temperature that exceeds 70 percent 
of the auto-ignition temperature, in degrees Celsius, of the vapors 
being collected.
    Enriching means introducing a flammable gas with the objective of 
raising the hydrocarbon content of a vapor mixture above the upper 
flammable limit so that it will not burn.
    Existing vapor control system means a vapor control system that 
satisfies the requirements of 33 CFR part 154, subpart E as certified 
by a certifying entity, or a tank barge cleaning facility vapor control 
system that meets the safety Standards of Navigation and Vessel 
Inspection Circular No. 1-96 as certified by a certifying entity or 
approved by the U.S. Coast Guard, and that began operating prior to 
August 15, 2013.
    Facility main vapor control system means a vapor control system 
that primarily serves facility processing areas unrelated to tank 
vessel operations, such as the plant process, tank storage areas, or 
tank truck or railcar loading areas.
    Facility operations manual means the manual required by 33 CFR 
154.300, the contents of which are described in 33 CFR 154.310.
    Facility vapor connection means the point in a facility's vapor 
collection system where it connects to a vapor collection hose or the 
base of a vapor

[[Page 42620]]

collection arm and is located at the dock as close as possible to the 
tank vessel to minimize the length of the flexible vapor collection 
hose, thus reducing the hazards associated with the hose.
    Fail-safe means a piece of equipment or instrument that is designed 
such that if any element should fail, it would go to a safe condition.
    Fixed stripping line means a pipe extending to the low point of 
each cargo tank, welded through the deck and terminating above the deck 
with a valve plugged at the open end.
    Flame arrester means a device that is designed, built, and tested 
in accordance with ASTM F 1273 or UL 525 (both incorporated by 
reference, see 33 CFR 154.106) for use in end-of-line applications for 
arresting flames.
    Flame screen means a fitted single screen of corrosion-resistant 
wire of at least 30-by-30 mesh, or two fitted screens, both of 
corrosion-resistant wire, of at least 20-by-20 mesh, spaced apart not 
fewer than 12.7 millimeters (0.5 inch) or more than 38.1 millimeters 
(1.5 inches).
    Flammable liquid means any liquid that gives off flammable vapors 
(as determined by flashpoint from an open-cup tester, as used to test 
burning oils) at or below a temperature of 80[deg]F, and includes 
Grades A, B, and C flammable liquids defined in 46 CFR 30.10-22.
    Fluid displacement system means a system that removes vapors from a 
barge's cargo tanks during gas freeing through the addition of an inert 
gas or other medium into the cargo tank.
    Fluid injection connection means the point in a fluid displacement 
system at which the fixed piping or hose that supplies the inert gas or 
other medium connects to a barge's cargo tanks or fixed piping system.
    Gas freeing means the removal of vapors from a tank barge.
    Grade A, B, C, D, or E means any Grade A, B, or C flammable liquid 
defined in 46 CFR 30.10-22 or any Grade D or E combustible liquid 
defined in 46 CFR 30.10-15.
    High flash point cargoes means Grade E cargoes and cargoes having a 
closed-cup flash point higher than 60[deg]C (140[deg]F), carried at a 
temperature no higher than 5[deg]C (9[deg]F) below their flash points.
    Inert condition or inerted means the oxygen content of the vapor 
space in a tank vessel's cargo tank is reduced to 60 percent or less by 
volume of the vapor's minimum oxygen concentration for combustion, or 
to 8 percent by volume or less for the vapor of crude oil, gasoline 
blends, or benzene, by addition of an inert gas, in accordance with the 
inert gas requirements of 46 CFR 32.53 or 46 CFR 153.500.
    Inerting means introducing an inert gas into a tank and/or piping 
system to lower the oxygen content of a vapor mixture.
    Line clearing means the transfer of residual cargo from a cargo 
loading line toward a cargo tank by using compressed inert gas.
    Liquid knockout vessel means a device, other than a drip leg, used 
to separate liquid from vapor.
    Maximum allowable gas-freeing rate means the maximum volumetric 
rate at which a barge may be gas-freed during cleaning operations.
    Maximum allowable stripping rate means the maximum volumetric rate 
at which a barge may be stripped during cleaning operations prior to 
the opening of any hatch and/or fitting in the cargo tank being 
stripped.
    Maximum allowable transfer rate means the maximum volumetric rate 
at which a vessel may receive cargo or ballast.
    Minimum oxygen concentration for combustion or MOCC means the 
lowest level of oxygen in a vapor or a vapor mixture that will support 
combustion.
    Multi-breasted barge-loading operations are those in which barges 
load side by side with the outboard barge's vapor collection system 
connected to a facility vapor connection through the inboard barge, as 
opposed to single-breasted operations involving a single barge, and may 
also be known as ``two barge, double-up'' loading operations.
    Multiple facility vapor collection system junction means the point 
in the vapor collection system where two or more branch lines 
originating from separate facility vapor connections are connected.
    New vapor control system means a vapor control system that is not 
an existing vapor control system.
    Padding means introducing into a tank and associated piping system 
with an inert gas or liquid which separates the cargo from air, and 
maintaining the condition.
    Partially inerted means the oxygen content of the vapor space in a 
tank is reduced to below what is normally present in the atmosphere by 
the addition of an inert gas such as nitrogen or carbon dioxide, but 
not to the concentration that meets the definition of ``inert condition 
or inerted'' in this section.
    Pig means any device designed to maintain a tight seal within a 
cargo line while being propelled by compressed inert gas towards a 
cargo tank, for the purpose of transferring residual cargo from the 
cargo loading line to the cargo tank.
    Pigging means the transfer of residual cargo from a cargo loading 
line by using compressed inert gas to propel a ``pig'' through the line 
toward a cargo tank.
    Pre-transfer conference means the conference required by 33 CFR 
156.120(w).
    Purging means introducing an inert gas into a tank and/or piping 
system to further reduce the existing hydrocarbon and/or oxygen content 
to a level below which combustion cannot be supported if air is 
subsequently introduced into the tank or piping system.
    Stripping means the removal, to the maximum extent practicable, of 
cargo residue remaining in the barge's cargo tanks and associated fixed 
piping system after cargo transfer or during cleaning operations.
    Tank barge cleaning facility or TBCF means a facility used or 
capable of being used to conduct cleaning operations on a tank barge.
    Transfer facility means a facility as defined in 33 CFR 154.105, 
excluding tank barge cleaning or stripping facilities.
    Vacuum displacement system means a system that removes vapors from 
a barge's cargo tanks during gas freeing by sweeping air through the 
cargo tank hatch openings.
    Vapor balancing means the transfer of vapor displaced by incoming 
cargo from the tank of a vessel or facility receiving cargo into a tank 
of the vessel or facility delivering cargo via facility vapor 
collection system.
    Vapor collection system means an arrangement of piping and hoses 
used to collect vapor emitted to or from a vessel's cargo tanks and to 
transport the vapor to a vapor processing unit or a tank.
    Vapor control system or VCS means an arrangement of piping and 
equipment used to control vapor emissions collected to or from a vessel 
and includes the vapor collection system and the vapor processing unit 
or a tank.
    Vapor destruction unit means a vapor processing unit that destroys 
cargo vapor by a thermal destruction method.
    Vapor dispersion unit means a vapor processing unit that releases 
cargo vapor into the atmosphere through a venting system not located on 
the tank vessel.
    Vapor processing unit means the components of a vapor control 
system that recover, destroy, or disperse vapor collected from a 
vessel.
    Vapor recovery unit means a vapor processing unit that recovers 
cargo vapor by nondestructive means.

[[Page 42621]]

    Vessel vapor connection means the point in a vessel's fixed vapor 
collection system where it connects to a vapor collection hose or arm.

Certifying Entities

Sec.  154.2010  Qualifications for acceptance as a certifying entity.

    To qualify for acceptance as a vapor control system (VCS) 
certifying entity, the entity must demonstrate to the satisfaction of 
the Commandant that it possesses the following minimum qualifications:
    (a) The ability to review and evaluate design drawings and failure 
analyses for compliance to this subpart;
    (b) The knowledge of the applicable regulations of this subpart, 
including the standards incorporated by reference;
    (c) The ability to monitor and evaluate test procedures and results 
for compliance with the operational requirements of this subpart;
    (d) The ability to perform inspections and observe tests of bulk 
liquid cargo-handling systems;
    (e) The applicant must not be controlled by an owner or operator of 
a vessel or facility engaged in controlling vapor emissions;
    (f) The applicant must not be dependent upon Coast Guard acceptance 
under this section to remain in business; and
    (g) The person in charge of VCS certification must be a licensed 
professional engineer in a U.S. State or territory by August 15, 2014.

Sec.  154.2011  Application for acceptance as a certifying entity.

    (a) An applicant seeking Coast Guard acceptance as a certifying 
entity of vapor control systems (VCSs) must submit a signed, written 
application to the Commandant containing the information described in 
paragraph (b) of this section. The applicant's signature certifies that 
the information in the application is true and that the applicant is 
not dependent upon Coast Guard acceptance under this section to remain 
in business and constitutes consent for the Coast Guard to verify any 
information contained in the application, through personal examination 
of persons named in the application, or otherwise. If an applicant 
knowingly and willfully provides any false statement or 
misrepresentation, or conceals a material fact in the application, the 
application may be denied or terminated, and the applicant may be 
subject to prosecution under the provisions of 18 U.S.C. 1001.
    (b) An application must include the following general information:
    (1) The name and address of the applicant, including subsidiaries 
and divisions if applicable;
    (2) A description of the experience and qualifications of any 
person who would review or test systems on behalf of the applicant, 
showing that the person is familiar with or otherwise qualified to 
implement Coast Guard VCS regulations; and
    (3) A letter from a facility owner or operator stating his or her 
intent to use the services of the applicant to certify VCS 
installations.
    (c) The Commandant reviews each application and either issues a 
letter of acceptance as a certifying entity to the applicant, or 
notifies the applicant that it is not accepted, and maintains a list of 
currently accepted certifying entities that is available to the public 
at http://homeport.uscg.mil.
    (d) The acceptance of a certifying entity may be terminated by the 
Commandant for failure to review, inspect, or test a system properly in 
accordance with this subpart.
    (e) A certifying entity may not certify a facility VCS if that 
certifying entity was involved in the design or installation of the 
system. ``Design or installation'' includes, but is not limited to--
    (1) Performing system design calculations;
    (2) Providing chemical data;
    (3) Developing plans, specifications, and drawings;
    (4) Conducting failure analysis; and
    (5) Installing systems or components.
    (f) A certifying entity may not recertify a VCS design, 
configuration, or operational change if it was involved in that change, 
and may not conduct an operational review of a VCS if it has been 
involved in the design, installation, or operation of the VCS.
    (g) A certifying entity may not conduct the failure analysis of a 
facility VCS it is certifying. The certifying entity may only point out 
shortcomings shown by the failure analysis and may not propose changes 
to correct the shortcomings.
    (h) A certifying entity may not certify the VCS of any vessel or 
facility owner or operator that owns or has a controlling interest in 
the certifying entity.

Certification, Recertification, and Operational Review

Sec.  154.2020  Certification and recertification--owner/operator 
responsibilities.

    (a) Prior to operating, a new vapor control system (VCS) 
installation must be certified under 33 CFR 154.2023 by a certifying 
entity as meeting the requirements of this subpart.
    (b) A certified VCS or a Coast Guard-approved VCS that was 
operating prior to July 23, 1990 must be recertified by a certifying 
entity under 33 CFR 154.2023 before it can--
    (1) Control vapors other than those for which it was originally 
certified;
    (2) Receive vapors from vessels other than those for which it was 
approved, if the VCS was in operation prior to July 23, 1990;
    (3) Operate under any changed design or configuration;
    (4) Operate as part of multi-breasted barge-loading operations, if 
the VCS was not originally approved or certified for such operations; 
or
    (5) Be connected to a tank vessel if a pigging system is used to 
clear cargo in the cargo line back to the tank vessel.
    (c) For a transfer facility, prior to operating a VCS to control 
vapor from a tank vessel during cargo loading line pigging to clear 
cargo in the cargo loading line back to the tank vessel, the cargo 
loading line pigging system must be reviewed by a certifying entity as 
meeting the requirements of 33 CFR 154.2104.
    (d) To apply for certification, the owner or operator of a facility 
VCS must submit plans, calculations, specifications, and other related 
information, including a qualitative failure analysis, to the 
certifying entity. Suggested, but not mandatory, guidance for preparing 
a qualitative failure analysis can be found in the American Institute 
of Chemical Engineers publication ``Guidelines for Hazard Evaluation 
Procedures,'' and in Military Standard MIL-STD-882B for a quantitative 
failure analysis. For assistance in locating those publications, 
contact the Coast Guard, Office of Design and Engineering Standards 
(CG-ENG), 2100 2nd Street SW., Stop 7126, Washington, DC 20593-7126, 
telephone 202-372-1418 or via email at Hazmatstandards@uscg.mil. The 
analysis must demonstrate that--
    (1) The VCS can operate continuously and safely while controlling 
cargo vapors to or from tankships or tank barges over the full range of 
transfer rates expected at the facility;
    (2) The VCS has the proper alarms and automatic shutdown systems 
required by this subpart to prevent an unsafe operation;
    (3) The VCS has sufficient automatic or passive devices to minimize 
damage to personnel, property, and the environment if an accident were 
to occur;
    (4) If a quantitative failure analysis is also conducted, the level 
of safety

[[Page 42622]]

attained is at least one order of magnitude greater than that 
calculated for operating without a VCS; and
    (5) If a facility uses a cargo line pigging system to clear cargo 
in the cargo line back to the tank vessel with the VCS connected, the 
qualitative failure analysis must demonstrate that the cargo line 
pigging system has at least the same levels of safety required by 
paragraphs (d)(1), (2), and (3) of this section to prevent overpressure 
of the vessel's cargo tanks and account for the probability that the 
pig is destroyed during line-pigging operations.
    (e) The VCS owner or operator must maintain at the facility--
    (1) A copy of VCS design documentation, including plans, drawings, 
calculations, and specifications for the VCS;
    (2) The facility operations manual, including the list of cargoes 
that the facility is approved to vapor control;
    (3) Any certification or recertification letter issued under 33 CFR 
154.2023; and
    (4) Other records as required by 33 CFR 154.740.

Sec.  154.2021  Operational review--owner/operator responsibilities.

    (a) Each facility vapor control system (VCS) must undergo an 
operational review by a certifying entity within five years of its 
initial certification or last operational review, to ensure its proper 
operation and maintenance.
    (b) The VCS owner or operator must coordinate with the certifying 
entity and provide the entity with all necessary documentation and 
records to conduct the operational review.
    (c) The VCS owner or operator must notify the Captain of the Port 
(COTP) of a scheduled operational review. The COTP, at his or her 
discretion, may observe the operational review.
    (d) The VCS owner or operator must maintain, at the facility, the 
latest operational review letter issued under 33 CFR 154.2023.

Sec.  154.2022  Certification, recertification, or operational review--
certifying entity responsibilities, generally.

    Before the initial certification of a facility vapor control system 
(VCS), the certifying entity must perform each of the tasks specified 
in this section.
    (a) Review all VCS design documentation, including plans, drawings, 
calculations, specifications, and failure analysis, to ensure that the 
VCS design meets the requirements of this subpart.
    (b) Conduct an initial onsite inspection to ensure that the VCS 
installation conforms to the VCS plans, drawings, and specifications 
reviewed.
    (c) Conduct onsite reviews and observe tests to ensure the VCS's 
proper operation in accordance with its design and compliance with 
applicable regulations and the facility's operations manual and to 
ensure that--
    (1) Each alarm and shutdown shown on the piping and instrumentation 
diagrams (P&IDs) and reviewed in the hazard analysis as part of the 
system responds properly, through simulation of emergency conditions to 
activate the alarm or shutdown;
    (2) Maximum vacuum cannot be exceeded at the maximum operating 
conditions of any vapor-moving device, through testing of the vacuum 
breaker;
    (3) VCS shutdown occurs correctly, through the startup of the VCS 
and tripping of each shutdown loop while the VCS is not connected to a 
vessel;
    (4) VCS startup, normal operation, and shutdown occur properly, 
through observing the relevant portions of a test loading or unloading 
of one vessel, or a test cleaning of one tank barge at a tank barge 
cleaning facility; and that
    (5) The automatic liquid block valve successfully stops flow of 
liquid to the vessel during a system shutdown, through observing the 
relevant portions of a test loading or test cargo tank cleaning.
    (d) Review, for each cargo vapor the VCS will control, the cargo's 
chemical data and the VCS design to ensure that--
    (1) Each vapor-controlled chemical is either specified in writing 
by the Commandant or listed in 46 CFR 30.25-1, 46 CFR 151.05, or Table 
1 or Table 2 of 46 CFR 153;
    (2) Each chemical's maximum experimental safe gap, minimum oxygen 
concentration for combustion (MOCC), and upper and lower limits of 
flammability have been correctly determined (this may but need not be 
in compliance with Coast Guard guidance available at http://homeport.uscg.mil);
    (3) Vapor properties and characteristics are addressed, including 
freezing point, polymerization potential, solubility, and cargo 
compatibility;
    (4) The flash point for any cargo with a closed-cup flash point of 
60[deg]C (140[deg]F) or higher is properly determined;
    (5) The cargo's vapor growth rate has been correctly determined and 
the VCS complies with 33 CFR 154.2103(a) and (b) or 33 CFR 154.2203(a) 
or (b);
    (6) Each detonation arrester used in the VCS is correct for each 
chemical's maximum experimental safe gap;
    (7) Setpoints for each oxygen analyzer used in the VCS are correct 
for each chemical's MOCC;
    (8) Setpoints for each oxygen or hydrocarbon analyzer used in the 
VCS are correct for each chemical's upper or lower flammability limit;
    (9) The inerting, enriching, or dilution system used is adequate;
    (10) Each vapor-controlled chemical is compatible with all VCS 
components and with other chemicals and with inerting, enriching, or 
diluting gases added to the VCS per 46 CFR part 150, Table I and Table 
II;
    (11) The VCS's mechanical equipment and system are suitable;
    (12) The VCS's vapor recovery or destruction unit has adequate 
capacity and is safe for each chemical;
    (13) Any calculation to determine the duration of purging required 
by 33 CFR 154.2150(p) is correct; and that
    (14) The VCS's failure analysis addresses any hazards presented 
with each chemical.
    (e) Review the VCS prior to certifying it to control vapors from 
barge cargo tanks during multi-breasted barge loading operations, to 
confirm that--
    (1) The overfill control system required by 33 CFR 154.2102 will 
process a liquid overfill condition within any one cargo tank on each 
barge;
    (2) If multi-breasted loading is conducted using more than one 
liquid transfer hose from the shore facility, the facility is capable 
of activating the emergency shutdown system required by 33 CFR 154.550, 
and can automatically stop the cargo flow to each transfer hose 
simultaneously, in the event an upset condition occurs that closes the 
remotely operated cargo vapor shutoff valve required by 33 CFR 
154.2101(a);
    (3) The facility operations manual has been modified to include the 
procedures for multi-breasted barge-loading operations; and
    (4) The facility operations manual describes how to make proper 
connections, on the facility side, between the alarm and shutdown 
systems of the VCS and of each barge being loaded.
    (f) Review a cargo line pigging system that will be used to clear 
cargo in the cargo line back to a tank vessel for compliance with 33 
CFR 154.2104.
    (g) Review the facility operations manual for compliance with 33 
CFR 154.310(b).
    (h) Review any test program used for instrument testing and 
calibration for compliance with 33 CFR 154.2180 and 33 CFR 154.2181.
    (i) Review the facility's VCS training program for compliance with 
33 CFR 154.2030 and 154.2031.

[[Page 42623]]

Sec.  154.2023  Recertification--certifying entity responsibilities, 
generally.

    (a) Before the recertification of a facility vapor control system 
(VCS) the certifying entity must perform the reviews specified in 33 
CFR 154.2022, except paragraphs (a) through (c).
    (b) The certifying entity must review, inspect, and observe tests 
of a facility VCS's design or configuration alteration before 
recertifying a VCS that was certified or approved for operation prior 
to July 23, 1990, to ensure that the altered system complies with 
applicable regulations. In general, the certifying entity should 
perform the review, inspection, and observe tests as specified in 33 
CFR 154.2022(a) through (c). However, depending on the extent of the 
alteration, the review, inspection, or test observing may not need to 
be as comprehensive as those for an initial certification.

Sec.  154.2024  Operational review--certifying entity responsibilities, 
generally.

    In conducting an operational review the certifying entity must 
ensure that the vapor control system (VCS) is properly operating and 
maintained by performing the tasks specified in this section.
    (a) Ensure the completeness, currency, and accuracy of the facility 
operations manual, training plans, and VCS test procedures.
    (b) Confirm through training records that the current listed 
available facility persons in charge have been trained in compliance 
with 33 CFR 154.2030 or 154.2031.
    (c) Confirm that recordkeeping and testing and inspection comply 
with 33 CFR 154.740 and 156.170.
    (d) Verify that there has been no change to the VCS equipment or 
instrumentation since the last certification, recertification, or 
operational review to ensure that the certification letter is current.
    (e) Verify proper marking, labeling, maintenance, and operation of 
VCS components, through visual inspection.
    (f) Confirm that the originally certified liquid cargo transfer 
rate can still be attained in compliance with 33 CFR 154.2103 and 
154.2107.
    (g) Ensure that cargo transfer or tank-cleaning barge operational 
procedures are properly followed and the VCS operates properly, through 
observation of the initial stages of transfer or cleaning, including 
24-hour pre-transfer tests required by 33 CFR 154.2150(b) or 33 CFR 
154.2250(b), the pre-transfer conference, and initial system startup 
procedures.

Sec.  154.2025  Certification, recertification, or operational review--
certifying entity documentation.

    (a) If the certifying entity is satisfied that the facility's vapor 
control system (VCS) has successfully undergone the reviews, 
inspections, and tests required by 33 CFR 154.2022(a) for certification 
or recertification, and that the VCS will operate properly and safely, 
the certifying entity must certify or recertify the VCS by issuing a 
certification letter to the facility owner or operator, and by sending 
copies of the letter to the Captain of the Port (COTP) and the 
Commandant. The certification letter must refer by date to the 
certifying entity's letter of acceptance issued under 33 CFR 
154.2011(c), and must--
    (1) State that the facility complies with applicable regulations 
and with its operations manual, and list any exemptions to the 
applicable regulations that have been approved by the Coast Guard;
    (2) Report on all reviews, inspections, and tests undergone by the 
VCS in accordance with 33 CFR 154.2022(a);
    (3) List all plans and drawings that were reviewed by the 
certifying entity;
    (4) State if the VCS may control vapors from tank barges that are 
required to have a shore-side, explosion-proof receptacle or an 
overfill control system required by 33 CFR 154.2102(a) and (b); and
    (5) List all cargoes that the certifying entity approves for 
control by the VCS.
    (b) If the certifying entity is satisfied that the facility's VCS 
has successfully undergone the operational review required by 33 CFR 
154.2022(b), the certifying entity must issue an operational review 
letter to the facility owner or operator, and send copies of the letter 
to the COTP and the Commandant. The operational review letter must--
    (1) List each item reviewed and inspected;
    (2) Describe the transfer or cleaning operation observed; and
    (3) Summarize the review's results.

Personnel

Sec.  154.2030  Transfer facilities.

    (a) Personnel in charge of a transfer operation using a vapor 
control system (VCS) must have completed a training program covering 
the particular VCS installed at the facility. As part of the training 
program, personnel must be able to demonstrate, through drills and 
display of practical knowledge, the proper VCS operational procedures 
for normal and emergency conditions. The training program must cover 
the following subjects:
    (1) Purpose of the VCS;
    (2) Principles of the VCS;
    (3) Components of the VCS;
    (4) Hazards associated with the VCS;
    (5) Coast Guard regulations in this subpart;
    (6) Operating procedures, including:
    (i) Transfer, testing, and inspection requirements;
    (ii) Pre-transfer procedures;
    (iii) Chemicals approved for collection;
    (iv) Material safety data sheet review;
    (v) Connection procedures;
    (vi) Startup procedures;
    (vii) Normal operating conditions and how to handle deviations from 
normal conditions;
    (viii) Normal shutdown procedures; and
    (ix) Operating procedures for cargo line clearing if a cargo line 
clearance system is installed in accordance with 33 CFR 154.2104; and
    (7) Emergency procedures.
    (b) Personnel overseeing VCS maintenance must be familiar with--
    (1) Inspection of detonation arresters; and
    (2) Procedures for equipment and instrumentation testing required 
by 33 CFR 156.170(g).
    (c) Facility personnel in charge of a transfer operation using a 
VCS must be designated and qualified in compliance with 33 CFR 154.710 
and the facility must maintain the training documentation required by 
33 CFR 154.740(b).

Sec.  154.2031  Tank barge cleaning facilities.

    (a) In addition to complying with 33 CFR 154.2030, a tank barge 
cleaning facility (TBCF) person-in-charge (PIC) of a barge cargo tank-
cleaning operation that uses a vapor control system (VCS) must complete 
a training program covering the particular systems installed at the 
facility and on the barge. As part of the training program, personnel 
must be able to demonstrate, through drills and practical knowledge, 
the proper VCS operation procedures for normal and emergency 
conditions. The training program must--
    (1) Satisfy the requirements of 33 CFR 154.2030(a)(1) through (7), 
except (a)(6)(i), (ii), and (ix), and 33 CFR 154.2030(b) and cover--
    (i) Purpose, principles, components, and hazards associated with 
stripping and gas-freeing;
    (ii) Special hazards associated with the accumulation and discharge 
of static electricity; and
    (iii) Operating procedures, including cleaning, testing, and 
inspection requirements; pre-cleaning procedures; and safeguards to 
prevent static electricity discharge.

[[Page 42624]]

    (b) In addition to the requirements contained in 33 CFR 154.710, no 
person may serve, and the facility operator may not use the services of 
anyone, as a facility PIC of a cleaning operation unless the person has 
been properly trained and certified by the facility with a minimum of 
60 hours of experience in cleaning operations.

Transfer Facilities--VCS Design and Installation

Sec.  154.2100  Vapor control system, general.

    (a) Vapor control system (VCS) design and installation must 
eliminate potential overpressure and vacuum hazards, overfill hazards, 
sources of ignition, and mechanical damage to the maximum practicable 
extent. Each remaining hazard source that is not eliminated must be 
specifically addressed in the protection system design and system 
operational requirements.
    (b) Vapor collection system pipe and fitting components must be in 
accordance with ANSI B31.3 (incorporated by reference, see 33 CFR 
154.106) with a maximum allowable working pressure (MAWP) of at least 
150 pounds per square inch gauge (psig). Valves must be in accordance 
with ASME B16.34, 150 pound class (incorporated by reference, see 33 
CFR 154.106). Flanges must be in accordance with ANSI B16.5 or ANSI 
B16.24, 150 pound class (both incorporated by reference, see 33 CFR 
154.106). The following components and their associated equipment do 
not have a minimum specified MAWP, but must be constructed to 
acceptable engineering standards and have the appropriate mechanical 
strength to serve the intended purpose: knockout drums, liquid seals, 
blowers/compressors, flare stacks/incinerators, and other vapor 
processing units.
    (c) All VCS electrical equipment must comply with NFPA 70 (2011) 
(incorporated by reference, see 33 CFR 154.106).
    (d) Any pressure, flow, or concentration indication required by 
this part must provide a remote indicator on the facility where the 
cargo transfer system and VCS are controlled, unless the local 
indicator is clearly visible and readable from the operator's normal 
position at the control stations.
    (e) Any condition requiring an alarm as specified in this part must 
activate an audible and visible alarm where the cargo transfer and VCSs 
are controlled.
    (f) For a VCS installed after August 15, 2013, an alarm or shutdown 
must be activated if electrical continuity of an alarm or shutdown 
sensor required by this subpart is lost.
    (g) The VCS piping surface temperature must not exceed 177[deg]C 
(350[emsp14][deg]F) or 70 percent of the auto-ignition temperature in 
degrees Celsius of the vapors being transferred, whichever is lower, 
during normal operations. This must be achieved by either separating or 
insulating the entire VCS from external heat sources.
    (h) The VCS must be equipped with a mechanism to eliminate any 
liquid condensate from the vapor collection system that carries over 
from the vessel or condenses as a result of an enrichment process.
    (1) If a liquid knockout vessel is installed to eliminate any 
liquid condensate, it must have--
    (i) A mechanism to indicate the level of liquid in the device;
    (ii) A high liquid level sensor that activates an alarm, meeting 
the requirements of paragraph (e) of this section;
    (iii) A high-high liquid level sensor that closes the remotely 
operated cargo vapor shutoff valve required by 33 CFR 154.2101(a), and 
shuts down any vapor-moving devices before carrying liquid over from 
the vessel to the vapor-moving device. One sensor with two stages may 
accomplish both this requirement and the requirement of paragraph 
(h)(1)(ii) of this section; and
    (2) If a drip leg is used to eliminate any liquid condensate, it 
must be fitted with a mechanism to remove liquid from the low point.
    (i) Vapor collection piping must be electrically grounded and must 
be electrically continuous.
    (j) If the facility handles inerted vapors of cargoes containing 
sulfur, the facility must control heating from pyrophoric iron sulfide 
deposits in the vapor collection line.
    (k) All VCS equipment and components, including piping, hoses, 
valves, flanges, fittings, and gaskets, must be suitable for use with 
the vapor in the VCS.

Sec.  154.2101  Requirements for facility vapor connections.

    (a) A remotely operated cargo vapor shutoff valve must be installed 
in the vapor collection line between the facility vapor connection and 
the nearest point where any inerting, enriching, or diluting gas is 
introduced into the vapor collection line, or where a detonation 
arrester is fitted. The valve must--
    (1) Close within 30 seconds after detection of a shutdown condition 
of any component required by this subpart;
    (2) Close automatically if the control signal or electrical power 
to the system is interrupted;
    (3) Activate an alarm meeting 33 CFR 154.2100(e) when a signal to 
shut down is received from a component;
    (4) Be capable of manual operation or manual activation;
    (5) Have a local valve position indicator, or be designed so that 
the valve position can be readily determined from the valve handle or 
valve stem position; and
    (6) If the valve seat is fitted with resilient material, be a 
Category A valve as defined by 46 CFR 56.20-15 and not allow 
appreciable leakage when the resilient material is damaged or 
destroyed.
    (b) Except when a vapor collection arm is used, the first 1 meter 
(3.3 feet) of vapor piping downstream of the facility vapor connection 
must be--
    (1) Painted in the sequence of red/yellow/red. The width of the red 
bands must be 0.1 meter (0.33 foot) and the width of the middle yellow 
band must be 0.8 meter (2.64 feet); and
    (2) Labeled with the word ``VAPOR'' painted in black letters at 
least 50.8 millimeters (2 inches) high.
    (c) Each facility vapor connection flange face must have a 
permanent stud projecting outward that is 12.7 millimeters (0.5 inch) 
in diameter and is at least 25.4 millimeters (1 inch) long. The stud 
must be located at the top of the flange face, midway between 
boltholes, and in line with the bolthole pattern.
    (d) Each hose that transfers vapors must--
    (1) Have a design burst pressure of at least 25 pounds per square 
inch gauge (psig);
    (2) Have a maximum allowable working pressure no less than 5 psig;
    (3) Be capable of withstanding at least a 2 pounds per square inch 
(psi) vacuum without collapsing or constricting;
    (4) Be electrically continuous with a maximum resistance of 10,000 
ohms;
    (5) Have flanges with--
    (i) A bolthole arrangement complying with the requirements for 150 
pound class flanges, ANSI B16.5 (incorporated by reference, see 33 CFR 
154.106); and
    (ii) One or more 15.9 millimeter (0.625 inch) diameter holes in the 
flange face, located midway between boltholes, and in line with the 
bolthole pattern;
    (6) Be resistant to abrasion and kinking;
    (7) Be compatible with vapors being controlled; and
    (8) Have the last 1 meter (3.3 feet) of each end of the vapor hose 
marked in accordance with paragraph (b) of this section.
    (e) Vapor hoses must be adequately supported to prevent kinking, 
collapse,

[[Page 42625]]

or contact with any metal of the vessel or facility to prevent 
unintentional electrical bypassing of the insulating flange or the 
single length of non-conducting hose required by paragraph (g) of this 
section.
    (f) Fixed vapor collection arms must--
    (1) Meet the requirements of paragraphs (d)(1) through (5) of this 
section; and
    (2) Have the last 1 meter (3.3 feet) of the arm marked in 
accordance with paragraph (b) of this section.
    (g) The facility vapor connection must be electrically insulated 
from the vessel vapor connection in accordance with OCIMF ISGOTT 
section 17.5 (incorporated by reference, see 33 CFR 154.106). In order 
to prevent electrical arcing during connection and disconnection of the 
transfer hose/arm, the transfer hose/arm must be fitted with an 
insulating flange or a single length of non-conducting hose to ensure 
electrical discontinuity between the vessel and facility. The 
insulating flange/hose should be inserted at the jetty end and must not 
be electrically bypassed. The installation, inspection, and testing of 
the insulating flange/hose must be in accordance with 46 CFR 35.35-4. 
For each vapor hose, only one insulting flange or non-conductive hose 
must be provided. See 46 CFR 35.35-4.
    (h) A vapor collection system, fitted with a gas injection system 
that operates at a positive gauge pressure at the facility vapor 
connection, must be fitted with a means to prevent backflow of vapor to 
the vessel's vapor collection system during loading.
    (i) Electrical bonding between vessel and shore must be in 
accordance with 46 CFR 35.35-.5.

Sec.  154.2102  Facility requirements for vessel liquid overfill 
protection.

    This section does not apply to facilities collecting vapors emitted 
from vessel cargo tanks while inerting, padding, or purging the cargo 
tanks with an inert gas and not loading cargo into the cargo tank.
    (a) Each facility that receives cargo vapor from a tank barge that 
is fitted with overfill protection, in accordance with 46 CFR 
39.2009(a)(1)(iii), must provide a 120-volt, 20-amp explosion-proof 
receptacle for the overfill protection system that meets--
    (1) ANSI NEMA WD-6 (incorporated by reference, see 33 CFR 154.106);
    (2) NFPA 70 (2011), Articles 406.9 and 501.145 (incorporated by 
reference, see 33 CFR 154.106); and
    (3) 46 CFR 111.105-9.
    (b) Each facility that receives cargo vapor from a tank barge that 
is fitted with an intrinsically safe cargo tank level sensor system 
complying with 46 CFR 39.2009(a)(2), as a means of overfill protection, 
must have an overfill control system on the dock capable of powering 
and receiving an alarm and shutdown signal from the cargo tank level 
sensor system that--
    (1) Closes the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) and activates the emergency shutdown system 
required by 33 CFR 154.550 when--
    (i) A tank overfill signal is received from the barge; or
    (ii) Electrical continuity of the cargo tank level sensor system is 
interrupted;
    (2) Activates an audible and visible alarm that warns barge and 
facility personnel when a tank overfill signal, or an optional high-
level signal corresponding to a liquid level lower than the tank 
overfill sensor setting, is received from the barge;
    (3) Has a mechanism to test the alarms and automatic shutdown 
systems electrically and mechanically before operating the vapor 
control system (VCS);
    (4) Has suitable means, such as approved intrinsic safety barriers 
able to accept passive devices, so that the overfill and optional alarm 
circuits on the barge side of the overfill control system, including 
cabling, normally closed switches, and pin and sleeve connectors, are 
intrinsically safe;
    (5) Is labeled at the dock with the maximum allowable inductance 
(in millihenrys) and capacitance (in microfarads) to be connected to 
the facility overfill protection system as specified by the equipment 
manufacturer; and
    (6) Has a female connecting plug for the tank barge level sensor 
system with a five-wire, 16-ampere connector body meeting IEC 60309-1 
and IEC 60309-2 (both incorporated by reference, see 33 CFR 154.106), 
that is--
    (i) Configured with pins S2 (N) and R1 (L3) for the tank overfill 
sensor circuit, pin G connected to the cabling shield, and pins N (L2) 
and T3 (L1) reserved for an optional high-level alarm connection;
    (ii) Labeled ``Connector for Barge Overfill Control System''; and
    (iii) Connected to the overfill control system by a shielded 
flexible cable.

154.2103  Facility requirements for vessel vapor overpressure and 
vacuum protection.

    In this section, the requirements of having a flame arrester or a 
flame screen at the opening of a pressure relief valve or a vacuum 
relief valve apply only to facilities collecting vapors of flammable, 
combustible, or non-high flash point liquid cargoes.
    (a) A facility's vapor control system (VCS) must have the capacity 
for collecting cargo vapor at a rate of not less than the facility's 
maximum liquid transfer rate for cargoes that are vapor controlled plus 
the vapor growth for the cargoes and any inerting, diluting, or 
enriching gas that may be added to the system. Vapor growth must be 
considered as 25 percent of the cargo's saturated vapor pressure in 
pounds per square inch absolute (psia) at 115[emsp14][deg]F, divided by 
12.5 psia (the vapor pressure of gasoline at 115[emsp14][deg]F), times 
the facility's maximum liquid transfer rate, unless there is 
experimental data for actual vapor growth for turbulent transferring 
under the most severe conditions for vapor growth. If the cargo is 
transferred at temperatures above 115[emsp14][deg]F, the cargo's true 
vapor pressure (in psia) at the transferring temperature must be used 
when determining the vapor growth.
    (b) A facility VCS must be designed to prevent the pressure in a 
vessel's cargo tanks from going below 80 percent of the highest setting 
of any of the vessel's vacuum relief valves or exceeding 80 percent of 
the lowest setting of any of the vessel's pressure relief valves for a 
non-inerted tank vessel. A facility VCS also must be designed to 
prevent the pressure in a vessel's cargo tanks from going below 0.2 
pounds per square inch gauge (psig) or exceeding 80 percent of the 
lowest setting of any of the vessel's pressure relief valves for an 
inerted tank vessel. The system must sustain the pressure in the 
vessel's cargo tanks within this range at any cargo transfer rate less 
than or equal to the maximum transfer rate determined at the pre-
transfer conference.
    (c) The pressure measured at the facility vapor connection must be 
corrected for pressure drops across the vessel's vapor collection 
system, vapor collection hose or arm, and vapor line up to the location 
of the pressure sensor.
    (d) The facility vapor connection must have a pressure-sensing 
device that meets the installation requirements of paragraph (h) of 
this section, which activates an alarm that meets 33 CFR 154.2100(e) 
when the pressure at the facility vapor connection exceeds either--
    (1) The pressure corresponding to the upper pressure determined in 
paragraph (b) of this section; or
    (2) A lower pressure agreed upon at the pre-transfer conference.
    (e) If a facility draws vapor from a vessel with a vapor-moving 
device, the facility vapor connection must have a pressure-sensing 
device, which activates an alarm meeting 33 CFR 154.2100(e)

[[Page 42626]]

when the pressure at the facility vapor connection falls below either--
    (1) The pressure corresponding to the lower pressure determined in 
paragraph (b) of this section; or
    (2) A higher pressure agreed upon at the pre-transfer conference.
    (f) The facility vapor connection must have a pressure-sensing 
device, independent of the device used to activate the alarm required 
by paragraph (d) of this section, meeting the installation requirements 
of paragraph (h) of this section, which activates the emergency 
shutdown system required by 33 CFR 154.550 when the pressure at the 
facility vapor connection exceeds the lower of the following:
    (1) A pressure corresponding to 90 percent of the vessel's lowest 
pressure relief valve setting, corrected for pressure drops across the 
vessel's vapor collection system, the vapor collection hose or arm, and 
any vapor line up to the point where the pressure sensor is located;
    (2) A pressure corresponding to 90 percent of the setting of the 
pressure relief valve at the facility vapor connection, if the facility 
vapor connection is installed with a pressure relief valve; or
    (3) A lower pressure than the pressure in paragraphs (f)(1) and 
(f)(2) of this section that is agreed upon at the pre-transfer 
conference.
    (g) If a facility draws vapors from a vessel with a vapor-moving 
device, the facility vapor connection must have a pressure-sensing 
device, independent of the device used to activate the alarm required 
by paragraph (e) of this section, which closes the remotely operated 
cargo vapor shutoff valve required by 33 CFR 154.2101(a) when the 
vacuum at the facility vapor connection is more than the higher (lesser 
vacuum) of the following:
    (1) A vacuum corresponding to 90 percent of the vessel's highest 
vacuum relief valve setting;
    (2) A vacuum corresponding to 90 percent of the setting of the 
vacuum relief valve at the facility vapor connection, if the facility 
vapor connection is installed with a vacuum relief valve; or
    (3) A lesser vacuum than the vacuum in paragraphs (g)(1) and (g)(2) 
of this section that is agreed upon at the pre-transfer conference.
    (h) The pressure-sensing devices required by paragraphs (d) and (f) 
of this section must be located in the vapor collection line between 
the facility vapor connection and the following:
    (1) Any isolation valve, unless an interlock is provided that 
prevents operation of the system when the isolation valve is closed; 
and
    (2) Any components that could plug and cause a blockage in the 
vapor line.
    (i) A pressure-indicating device must be provided that displays the 
pressure in the vapor collection line between the facility vapor 
connection and any isolation valve or any devices which could cause a 
blockage in the vapor line.
    (j) If a facility draws vapor from the vessel with a vapor-moving 
device capable of drawing more than 1 pound per square inch (psi) 
vacuum, a vacuum relief valve must be installed in the vapor collection 
line between the vapor-moving device and the facility vapor connection, 
which--
    (1) Relieves at a predetermined pressure such that the pressure at 
the facility vapor connection is maintained at -1.0 psig (1.0 psig 
vacuum) or less vacuum;
    (2) Has a relieving capacity equal to or greater than the capacity 
of the vapor-moving device;
    (3) Has a flame arrester or flame screen fitted at the vacuum 
relief opening; and
    (4) Has been tested for relieving capacity in accordance with 
paragraph 1.5.1.3 of API 2000 (incorporated by reference, see 33 CFR 
154.106) with a flame arrester or flame screen fitted.
    (k) When a facility collects cargo vapor through an extensive 
length of vapor piping, such as an undersea pipeline from a vessel 
moored offshore, before reaching the first pressure sensor and vacuum 
relief valve, the vacuum relief valve may be set at a vacuum greater 
than 1 psi vacuum, provided the pressure controls take into account the 
pressure drop across the vessel's vapor collection system, any vapor 
collection hoses, and the vapor piping as a function of the actual 
transfer rate.
    (l) If the pressure in the vapor collection system can exceed 1.5 
psig during a malfunction of a pressure regulator or control valve in 
an inerting, enriching, or diluting system, a pressure relief valve 
must--
    (1) Be located between where the inerting, enriching, or diluting 
gas is introduced into the vapor collection system and the facility 
vapor connection;
    (2) Relieve at the higher of the following two pressures:
    (i) A pressure such that the pressure at the facility vapor 
connection does not exceed 1.5 psig; or
    (ii) The lowest pressure relief valve setting of vessels that 
control vapors at the facility;
    (3) Have a relieving capacity equal to or greater than the maximum 
capacity of the facility inerting, enriching, or diluting gas source 
flowing through the failed pressure regulator or control valve, taking 
into account the pressure drops across any flame arrester or discharge 
piping fitted at the relief valve's discharge;
    (4) Have a flame arrester or flame screen fitted at the discharge 
opening, if the design does not secure a minimum vapor discharge 
velocity of 30 meters (98.4 feet) per second; and
    (5) Have been tested for relieving capacity in accordance with 
paragraph 1.5.1.3 of API 2000.
    (m) The relieving capacity test required by paragraph (l)(5) of 
this section must be carried out with a flame screen fitted at the 
discharge opening if--
    (1) The design of the pressure relief valve does not secure a 
minimum vapor discharge velocity of 30 meters (98.4 feet) per second; 
and
    (2) The discharge is not fitted with a flame arrester.
    (n) A facility that collects vapors emitted from vessel cargo tanks 
while inerting, padding, or purging cargo tanks must--
    (1) Provide a pressure-sensing device that activates an alarm 
meeting 33 CFR 154.2100(e) when the pressure of the inerting, padding, 
or purging gas exceeds either the pressure corresponding to the higher 
pressure determined in paragraph (b) of this section or a lower 
pressure agreed upon at the pre-transfer conference;
    (2) Provide a pressure-sensing device, independent of the device 
required by paragraph (n)(1) of this section, which automatically stops 
the flow of inerting, padding, or purging gas to the vessel when the 
pressure of the inerting, padding, or purging gas exceeds 90 percent of 
the lowest setting of any pressure relief valve on the vessel; and
    (3) Locate the pressure-sensing devices required by paragraphs 
(n)(1) and (n)(2) of this section in the inerting, padding, or purging 
gas piping downstream of any devices in the gas piping that could 
potentially isolate the vessel from the sensing devices.

Sec.  154.2104  Pigging system.

    (a) If a pigging system is used to clear cargo in the cargo lines 
to the tank vessel while the vessel is connected to the facility vapor 
control system (VCS), the pigging system must be designed with the 
following safety features:
    (1) A bypass loop installed in the main liquid cargo line that 
contains the pig-receiving device, through which all the liquid flow is 
channeled during pigging operations. The pig must act as a seal to 
separate the vessel from the compressed inert gas that is used to

[[Page 42627]]

propel it as the pig travels from the pig launcher to the pig-receiving 
device;
    (2) A mechanism for restricting liquid and gas flow so that the 
vessel, personnel, and environment are not endangered. The compressed 
inert gas flow capacity that this mechanism secures must not be more 
than 95 percent of the combined capacity of all vessel and facility VCS 
relief valves located upstream of the facility's remotely operated 
cargo vapor shutoff valve required by 33 CFR 154.2101(a);
    (3) A fast-action automatic shutoff valve such as a solenoid valve, 
which closes on a high-pressure signal from the pressure sensor 
required by 33 CFR 154.2103(f), located in the liquid bypass loop 
downstream of the pig-receiving device;
    (4) An interlock with the main cargo line manual block valve so 
that line-clearing operations cannot begin unless the main cargo line 
manual block valve is closed; and
    (5) An automatic means to detect arrival of the pig at the pig-
receiving device.
    (b) If a cargo line clearance system without using pigging is used 
to clear cargo in the cargo lines to the tank vessel while the vessel 
is connected to the facility VCS, the cargo line clearance system must 
be approved by the Commandant.

Sec.  154.2105  Fire, explosion, and detonation protection.

    This section applies only to facilities that control vapors of 
flammable, combustible, or non-high flash point liquid cargoes.
    (a) A vapor control system (VCS) with a single facility vapor 
connection that receives inerted cargo vapor from a vessel and 
processes it with a vapor recovery unit must--
    (1) Be capable of inerting the vapor collection line in accordance 
with 33 CFR 154.2107(a) before receiving the vessel's vapor and have at 
least one oxygen analyzer, which satisfies the requirements of 33 CFR 
154.2107(f)(1) and (2), (g), and (h)(2) and (3), sampling the vapor 
concentration continuously at a point as close as practicable to the 
facility vapor connection. The total pipe length between the analyzer 
and the facility vapor connection must not exceed 6 meters (19.7 feet); 
or
    (2) Have a detonation arrester located as close as practicable to 
the facility vapor connection. The total pipe length between the 
detonation arrester and the facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source.
    (b) A VCS with a single facility vapor connection that receives 
only inerted cargo vapor from a vessel and processes it with a vapor 
destruction unit must--
    (1) Satisfy the requirements of paragraph (a)(1) of this section 
and have a detonation arrester located as close as practicable to the 
facility vapor connection. The oxygen analyzer required by paragraph 
(a)(1) can be located 4 meters (13.1 feet) downstream of the detonation 
arrester. The total pipe length between the detonation arrester and the 
facility vapor connection must not exceed 18 meters (59.1 feet) and the 
vapor piping between the detonation arrester and the facility vapor 
connection must be protected from any potential internal or external 
ignition source; or
    (2) Have an inerting system that meets the requirements of 33 CFR 
154.2107.
    (c) A VCS with a single facility vapor connection that receives 
vapor from a vessel with cargo tanks that are not inerted or are 
partially inerted, and processes it with a vapor recovery unit must--
    (1) Have a detonation arrester located as close as practicable to 
the facility vapor connection. The total pipe length between the 
detonation arrester and the facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; or
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (d) A VCS with a single facility vapor connection that receives 
vapor from a vessel with cargo tanks that are not inerted or are 
partially inerted, and processes the vapor with a vapor destruction 
unit must--
    (1) Have a detonation arrester located as close as practicable to 
the facility vapor connection. The total pipe length between the 
detonation arrester and the facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; and
    (2) Have an inerting, enriching, or diluting system that satisfies 
the requirements of 33 CFR 154.2107.
    (e) A VCS with multiple facility vapor connections that receives 
vapor from vessels with cargo tanks that carry inerted, partially 
inerted, non-inerted, or combinations of inerted, partially inerted, 
and non-inerted cargoes, and processes them with a vapor recovery unit, 
must have a detonation arrester located as close as practicable to each 
facility vapor connection. The total pipe length between the detonation 
arrester and each facility vapor connection must not exceed 18 meters 
(59.1 feet) and the vapor piping between the detonation arrester and 
the facility vapor connection must be protected from any potential 
internal or external ignition source.
    (f) A VCS with multiple facility vapor connections that receives 
only inerted cargo vapor from vessels and processes it with a vapor 
destruction unit must--
    (1) Satisfy the requirements of paragraph (a)(1) of this section 
for each facility vapor connection and have a detonation arrester 
located as close as practicable to each facility vapor connection. The 
oxygen analyzer required by paragraph (a)(1) can be located 4 meters 
(13.1 feet) downstream of the detonation arrester. The total pipe 
length between the detonation arrester and each facility vapor 
connection must not exceed 18 meters (59.1 feet) and the vapor piping 
between the detonation arrester and the facility vapor connection must 
be protected from any potential internal or external ignition source; 
or
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (g) A VCS with multiple facility vapor connections that receives 
vapor from vessels with non-inerted or partially inerted cargoes, and 
processes the vapor with a vapor destruction unit must--
    (1) Have a detonation arrester located as close as practicable to 
each facility vapor connection. The total pipe length between the 
detonation arrester and each facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; and
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (h) A VCS with multiple facility vapor connections that 
simultaneously receives vapor from vessels with inerted, partially 
inerted, and non-inerted cargoes, and processes the vapor with a vapor 
destruction unit must--
    (1) Have a detonation arrester located as close as practicable to 
each facility vapor connection. The total pipe length between the 
detonation arrester and each facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation

[[Page 42628]]

arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; and
    (2) Have either an inerting, enriching, or diluting system that 
meets the requirements of 33 CFR 154.2107, or a base loading system 
that meets the requirements of 33 CFR 154.2107(m).
    (i) A VCS that uses a vapor balancing system in which cargo vapor 
from a vessel or facility storage tank is transferred through the 
facility vapor collection system to facility storage tanks or a vessel 
must meet the requirements of 33 CFR 154.2110.
    (j) Each outlet of a VCS that vents to the atmosphere, except for a 
discharge vent from a vapor destruction unit or relief valve installed 
to comply with 33 CFR 154.2103(j) and (k) or 33 CFR 154.2203(e), (k), 
and (l), must have one of the following located at the outlet:
    (1) A detonation arrester;
    (2) An end-of-line flame arrester that meets ASTM F 1273 
(incorporated by reference, see 33 CFR 154.106); or
    (3) An end-of-line flame arrester that meets UL 525 (incorporated 
by reference, see 33 CFR 154.106) if--
    (i) The discharge vent stream's total flammable concentration is 
proven to be less than 50 percent of the lower flammable limit, or the 
stream's oxygen concentration is proven to be less than 70 percent by 
volume of the MOCC, at all times by an outlet concentration analyzer 
for carbon beds, proof of correct operating temperature for 
refrigeration systems, or proof of scrubbing medium flow for scrubbers; 
and
    (ii) The proving devices in paragraph (j)(2)(i) of this section 
close the remotely operated cargo vapor shutoff valve required in 33 
CFR 154.2101(a) and close the automatic liquid cargo loading valve if 
operating outside the conditions necessary to maintain the discharge 
vent non-combustible.

Sec.  154.2106  Detonation arresters installation.

    This section applies only to facilities collecting vapors of 
flammable, combustible, or non-high flash point liquid cargoes.
    (a) Detonation arresters must be installed in accordance with the 
guidelines outlined in the arrester manufacturer's acceptance letter 
provided by the Coast Guard.
    (b) On either side of a detonation arrester, line size expansions 
must be in a straight pipe run and must be no closer than 120 times the 
pipe's diameter from the detonation arrester unless the manufacturer 
has test data to show the expansion can be closer.

Sec.  154.2107  Inerting, enriching, and diluting systems.

    This section applies only to facilities that control vapors of 
flammable, combustible, or non-high flash point liquid cargoes.
    (a) Before receiving cargo vapor, a vapor control system (VCS) that 
uses a gas for inerting, enriching, or diluting must be capable of 
inerting, enriching, or diluting the vapor collection system, at a 
minimum of two system volume exchanges of inerting, enriching, or 
diluting gas, downstream of the injection point.
    (b) A VCS that uses an inerting, enriching, or diluting system must 
be equipped, except as permitted by 33 CFR 154.2105(a), with a gas 
injection and mixing arrangement located as close as practicable to the 
facility vapor connection and no closer than 10 meters (32.8 feet) 
upstream from the vapor processing unit or the vapor-moving device that 
is not protected by a detonation arrester required by 33 CFR 
154.2108(b). The total pipe length between the arrangement and the 
facility vapor connection must not exceed 22 meters (72.2 feet). The 
arrangement must be such that it provides complete mixing of the gases 
within 20 pipe diameters of the injection point. The vapor piping 
between the arrangement and the facility vapor connection must be 
protected from any potential internal or external ignition source.
    (c) A VCS that uses an inerting or enriching system may not be 
operated at a vacuum after the injection point unless--
    (1) There are no vacuum relief valves or other devices that could 
allow air into the vapor collection system downstream of the injection 
point, and pipe connections are flanged, threaded, or welded so no air 
can leak into the VCS; or
    (2) An additional analyzer is used to monitor the vapor 
concentration downstream of such device and a mechanism is provided to 
inject additional inerting or enriching gas.
    (d) A VCS that uses analyzers to control the amount of inerting, 
enriching, or diluting gas injected into the vapor collection line must 
be equipped with at least two analyzers. The analyzers must be 
connected so that--
    (1) When two oxygen analyzers are used, the higher oxygen 
concentration reading controls the inerting or enriching system and 
activates the alarm and automatic shutdown system required by paragraph 
(h), (j), or (k)(2) of this section;
    (2) When voting systems using more than two oxygen analyzers are 
used, the majority pair controls the inerting or enriching system and 
activates the alarm and automatic shutdown system required by paragraph 
(h), (j), or (k)(2) of this section;
    (3) When two hydrocarbon analyzers are used, the lower hydrocarbon 
concentration reading controls the enriching system and activates the 
alarm and automatic shutdown system required by paragraph (i) of this 
section;
    (4) When voting systems using more than two hydrocarbon analyzers 
are used, the majority pair controls the enriching system and activates 
the alarm and automatic shutdown system required by paragraph (i) of 
this section;
    (5) When two hydrocarbon analyzers are used, the higher hydrocarbon 
concentration reading controls the diluting system and activates the 
alarm and automatic shutdown system required by paragraph (l) of this 
section; and
    (6) When voting systems using more than two hydrocarbon analyzers 
are used, the majority pair controls the diluting system and activates 
the alarm and automatic shutdown system required by paragraph (l) of 
this section.
    (e) A VCS that uses volumetric measurements to control the amount 
of inerting, enriching, or diluting gas injected into the vapor 
collection line must be equipped, except as permitted by paragraph (m) 
of this section, with at least one analyzer to activate the alarms and 
automatic shutdown systems required by this section.
    (f) Each oxygen or hydrocarbon analyzer required by this section 
must--
    (1) Be installed in accordance with API 550 (incorporated by 
reference, see 33 CFR 154.106);
    (2) Have a system response time of not more than one minute from 
sample input to 95 percent of final stable value as tested per 33 CFR 
154.2180 and 33 CFR 154.2181; and
    (3) Continuously sample the vapor concentration not more than 30 
pipe diameters from the gas injection point.
    (g) A VCS must not use oxygen analyzers that operate at elevated 
temperatures (i.e., zirconia oxide or thermomagnetic).
    (h) An inerting system must--
    (1) Supply sufficient inert gas to the vapor stream to ensure that 
the oxygen concentration downstream of the injection point is 
maintained at or below 60 percent by volume of the minimum oxygen 
concentration for combustion (MOCC) for the specific combination of 
cargo vapors and inert gas being processed, which may be determined by 
using Coast Guard

[[Page 42629]]

guidance available at http://homeport.uscg.mil;
    (2) Activate an alarm that satisfies the requirements of 33 CFR 
154.2100(e) when the oxygen concentration in the vapor collection line 
exceeds 60 percent by volume of the MOCC for the specific combination 
of cargo vapors and inert gas being processed, which may be determined 
by using Coast Guard guidance available at http://homeport.uscg.mil;
    (3) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) when the oxygen concentration in the vapor 
collection line exceeds 70 percent by volume of the MOCC for the 
specific combination of cargo vapors and inert gas being processed, 
which may be determined by using Coast Guard VCS guidance available at 
http://homeport.uscg.mil;
    (4) Have a detonation arrester and a mechanism to prevent the 
backflow of flammable vapors installed between the combustion device 
and the inert gas injection point, if a combustion device is used to 
produce the inert gas; and
    (5) Have an alarm value in paragraph (h)(2) of this section that is 
at least one percentage point less than the shutdown value in paragraph 
(h)(3) of this section. If the analyzers used to measure oxygen 
concentrations cannot accurately differentiate between the alarm value 
and the shutoff value, the alarm value must be lowered until the 
analyzers become operable.
    (i) An enriching system must--
    (1) Supply sufficient compatible hydrocarbon vapor to the vapor 
stream to make sure that the total flammable concentration downstream 
of the injection point is maintained either at or above 170 percent by 
volume of the upper flammable limit or above the upper flammable limit 
plus 10 percentage points, whichever is lower;
    (2) Activate an alarm that satisfies the requirements of 33 CFR 
154.2100(e) when the total flammable concentration in the vapor 
collection line either falls below 170 percent by volume of the upper 
flammable limit or below the upper flammable limit plus 10 percentage 
points, whichever is lower;
    (3) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) when the total flammable concentration in the 
vapor collection line either falls below 150 percent by volume of the 
upper flammable limit or below the upper flammable limit plus 7.5 
percentage points, whichever is lower; and
    (4) Have an upper flammable limit listed in paragraphs (i)(1), 
(i)(2), and (i)(3) of this section which is either the cargo's upper 
flammable limit or the enriching gas's upper flammable limit, whichever 
is higher. Alternatively, the mixture's upper flammable limit, which 
may be determined by using methods found in Coast Guard guidance 
available at http://homeport.uscg.mil, may be used.
    (j) Oxygen analyzers may be used instead of hydrocarbon analyzers 
in a VCS using an enriching system that receives cargo vapor only from 
a vessel with non-inerted cargo tanks, providing that the analyzers--
    (1) Activate an alarm satisfying the requirements of 33 CFR 
154.2100(e) when the oxygen concentration in the vapor collection line 
exceeds a level corresponding to either a total flammable concentration 
of 170 percent by volume of the upper flammable limit or the upper 
flammable limit plus 10 percentage points, whichever yields a higher 
oxygen concentration;
    (2) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) when the oxygen concentration in the vapor 
collection line exceeds a level corresponding to either a total 
flammable concentration of 150 percent by volume of the upper flammable 
limit or the upper flammable limit plus 7.5 percentage points, 
whichever yields a higher oxygen concentration;
    (3) Have an alarm value in paragraph (j)(1) of this section that is 
at least one percentage point less than the shutdown value in paragraph 
(j)(2) of this section. If the oxygen analyzers used to measure oxygen 
concentrations cannot accurately differentiate between the alarm value 
and the shutdown value, the alarm value must be lowered until the 
analyzers become operable; and
    (4) Have an upper flammable limit listed in paragraphs (j)(1) and 
(j)(2) of this section which is either the cargo's upper flammable 
limit or the enriching gas's upper flammable limit, whichever is 
higher. Alternatively, the mixture's upper flammable limit, which may 
be determined by using methods found in Coast Guard VCS guidance 
available at http://homeport.uscg.mil, may be used.
    (k) An enriching system may be used in a VCS that receives inerted 
cargo vapor from a vessel if--
    (1) Hydrocarbon analyzers are used to comply with paragraphs (i)(2) 
and (i)(3) of this section; or
    (2) Oxygen analyzers are used, in which case the analyzers must--
    (i) Activate an alarm meeting 33 CFR 154.2100(e) when the oxygen 
concentration in the vapor collection line exceeds 60 percent by volume 
of the MOCC for the specific combination of cargo vapors and gases; and
    (ii) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) when the oxygen concentration exceeds 70 percent 
by volume of the MOCC for the specific combination of cargo vapors and 
gases; and
    (3) The MOCC in paragraphs (k)(2)(i) and (k)(2)(ii) of this section 
is either the cargo's MOCC or the enriching gas's MOCC, whichever is 
lower. Alternatively, the mixture's MOCC, which may be determined using 
Coast Guard VCS guidance available at http://homeport.uscg.mil, may be 
used.
    (l) An air dilution system must--
    (1) Supply a sufficient amount of additional air to the vapor 
stream to keep the total flammable concentration downstream of the 
injection point below 30 percent by volume of the lower flammable 
limit;
    (2) Activate an alarm that satisfies the requirements of 33 CFR 
154.2100(e) when the total flammable concentration in the vapor 
collection line exceeds 30 percent by volume of the lower flammable 
limit; and
    (3) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a) when the total flammable concentration in the 
vapor collection line exceeds 50 percent by volume of the lower 
flammable limit.
    (m) An enriching system may use a base loading method to control 
the amount of enriching gas in a vapor collection system if--
    (1) The flow rate of enriching gas is determined by assuming the 
vapor entering the facility vapor connection consists of 100 percent 
air;
    (2) Two independent devices are used to verify the correct 
enriching gas volumetric flow rate. One of the two devices must be a 
flow meter;
    (3) One of the devices activates an alarm that satisfies the 
requirements of 33 CFR 154.2100(e) when the amount of enriching gas 
added results in a total flammable concentration in the vapor 
collection line either below 170 percent by volume of the upper 
flammable limit or below the upper flammable limit plus 10 percentage 
points, whichever is lower;
    (4) The second device activates closure of the remotely operated 
cargo vapor shutoff valve required by 33 CFR 154.2101(a) when the 
amount of enriching gas added results in a total flammable 
concentration in the vapor collection line either below 150 percent by 
volume of the upper flammable limit or below the upper flammable limit 
plus 7.5 percentage points, whichever is lower; and
    (5) The upper flammable limit in paragraphs (m)(3) and (4) of this 
section

[[Page 42630]]

is either the cargo's upper flammable limit or the enriching gas's 
upper flammable limit, whichever is higher. Alternatively, the 
mixture's upper flammable limit, which may be determined using Coast 
Guard guidance available at http://homeport.uscg.mil, may be used.
    (n) For controlling vapors of different cargoes at multiple berths 
while using enriching gas, the highest upper flammable limit or the 
lowest MOCC of the cargo or enriching gas, whichever is applicable, is 
used to determine the analyzer alarm and shutdown setpoints. 
Alternatively, the mixture's upper flammable limit or MOCC, which may 
be determined by using Coast Guard guidance available at http://homeport.uscg.mil, may be used.
    (o) For controlling vapors of inert and non-inert cargoes at 
multiple berths while using enriching gas--
    (1) The lowest MOCC of the cargo or enriching gas is used to 
determine the analyzer alarm and shutdown setpoints at all berths. 
Alternatively, the mixture's MOCC, which may be determined using Coast 
Guard guidance available at http://homeport.uscg.mil, may be used; or
    (2) A base loading method meeting the requirements of paragraph (m) 
of this section is used for all berths.

Sec.  154.2108  Vapor-moving devices.

    (a) Paragraphs (b) and (e) of this section apply only to facilities 
collecting vapors of flammable, combustible, or non-high flash point 
liquid cargoes.
    (b) Each inlet and outlet to a vapor-moving device that handles 
vapor that has not been inerted, enriched, or diluted in accordance 
with 33 CFR 154.2107 must be fitted with a detonation arrester; 
however, the outlet detonation arrester may be omitted if the vapor-
moving device is within 50 times the pipe's diameter of the detonation 
arrester required by 33 CFR 154.2109(a).
    (c) If the vapor is handled by a reciprocating or screw-type 
compressor in the vapor collection system, the compressor must be 
installed with indicators and audible and visible alarms to warn 
against the following conditions:
    (1) Excessive gas temperature at the compressor outlet;
    (2) Excessive cooling water temperature;
    (3) Excessive vibration;
    (4) Low lube oil level;
    (5) Low lube oil pressure; and
    (6) Excessive shaft bearing temperature.
    (d) If the vapor is handled by a liquid ring-type compressor in the 
vapor collection system, it must be installed with indicators and 
audible and visible alarms to warn against the following conditions:
    (1) Low level of liquid sealing medium;
    (2) Lack of flow of the liquid sealing medium;
    (3) Excessive temperature of the liquid sealing medium;
    (4) Low lube oil level;
    (5) Low lube oil pressure, if pressurized lubricating system; and
    (6) Excessive shaft bearing temperature.
    (e) If the vapor is handled by a centrifugal compressor, fan, or 
lobe blower in the vapor collection system, construction of the blades 
or housing must be one of the following:
    (1) Blades or housing of nonmetallic construction;
    (2) Blades and housing of nonferrous material;
    (3) Blades and housing of corrosion resistant steel;
    (4) Ferrous blades and housing with one-half inch or more design 
tip clearance;
    (5) Nonferrous blades and ferrous housing with one-half inch or 
more design tip clearance; or
    (6) Blades of aluminum or magnesium alloy and a ferrous housing 
with a nonferrous insert sleeve at the periphery of the impeller.

Sec.  154.2109  Vapor recovery and vapor destruction units.

    Paragraphs (a), (b), and (e) of this section apply only to 
facilities collecting vapors of flammable, combustible, or non-high 
flash point liquid cargoes.
    (a) The inlet to a vapor recovery unit that receives vapor that has 
not been inerted, enriched, or diluted in accordance with 33 CFR 
154.2107 must be fitted with a detonation arrester.
    (b) The inlet to a vapor destruction unit must--
    (1) Have a liquid seal that meets the requirements of paragraph (e) 
of this section, except as specified by paragraph (b)(3) of this 
section; and
    (2) Have two quick-closing stop valves installed in the vapor line. 
One of them must be installed upstream of the detonation arrester 
required by paragraph (c)(2) of this section. The quick-closing stop 
valves must--
    (i) Close within 30 seconds after detection of a condition that 
requires the closing of these two quick-closing stop valves by a 
control component required by this subpart for a vapor control system 
(VCS) with a vapor destruction unit;
    (ii) Close automatically if the control signal is lost;
    (iii) Have a local valve position indicator or be designed so that 
the valve position is readily determined from the valve handle or valve 
stem position; and
    (iv) If the valve seat is fitted with resilient material, be a 
Category A valve as defined by 46 CFR 56.20-15 and not allow 
appreciable leakage when the resilient material is damaged or 
destroyed; and
    (3) Instead of a liquid seal as required by paragraph (b)(1) of 
this section, have the following:
    (i) An anti-flashback burner accepted by the Commandant and 
installed at each burner within the vapor destruction unit; and
    (ii) A differential pressure sensor that activates the quick-
closing stop valves as required by paragraph (b)(2) of this section 
upon sensing a reverse flow condition.
    (c) A vapor destruction unit must--
    (1) Not be within 30 meters (98.8 feet) of any tank vessel berth or 
mooring at the facility;
    (2) Have a detonation arrester fitted in the inlet vapor line; and
    (3) Activate an alarm that satisfies the requirements of 33 CFR 
154.2100(e) and shut down when a flame is detected on the detonation 
arrester.
    (d) When a vapor destruction unit shuts down or has a flame-out 
condition, the vapor destruction unit control system must--
    (1) Activate and close the quick-closing stop valves required by 
paragraph (b)(2) of this section;
    (2) Close the remotely operated cargo vapor shutoff valve required 
by 33 CFR 154.2101(a); and
    (3) Automatically shut down any vapor-moving devices installed in 
the VCS.
    (e) If a liquid seal is installed at the inlet to a vapor 
destruction unit, then--
    (1) The liquid used in the liquid seal must be compatible with the 
vapors being controlled;
    (2) For partially or totally soluble cargoes that can polymerize in 
solution, there must be an adequate amount of inhibitor in the liquid 
seal;
    (3) The liquid seal must be compatible with the design of the VCS 
and must not contribute to the flammability of the vapor stream; and
    (4) The liquid seal must have a low-level alarm and a low-low level 
shutdown.

Sec.  154.2110  Vapor balancing requirements.

    Paragraphs (a)(2) and (4), (b), and (c) of this section apply only 
to facilities transferring vapors of flammable, combustible, or non-
high flash point liquid cargoes.

[[Page 42631]]

    (a) A vapor control system (VCS) that uses a vapor balancing system 
in which cargo vapor is transferred from a vessel cargo tank or 
facility storage tank through the facility vapor collection system to a 
facility storage tank or vessel cargo tank must--
    (1) Have facility storage tank high-level alarm systems and 
facility storage tank overfill control systems, independent of the 
high-level alarm system, arranged to prevent the cargo from entering 
the vapor return line;
    (2) Have a detonation arrester located within the storage tank 
containment area and a detonation arrester located as close as 
practicable to the facility vapor connection. The total pipe length 
between the detonation arrester and the facility vapor connection must 
not exceed 18 meters (59.1 feet) and the vapor piping between the 
detonation arrester and the facility vapor connection must be protected 
from any potential internal or external ignition source;
    (3) Meet the overpressure and over-vacuum protection requirements 
of 33 CFR 154.2103; and
    (4) As an alternative to paragraph (a)(2) of this section, inert 
cargo systems can meet the requirements of 33 CFR 2105(a)(1).
    (b) A vapor balancing system, while in operation to transfer vapor 
to or from a vessel cargo tank and connected by way of the facility 
storage tank vent to a facility's main VCS with a vapor destruction 
unit, must have--
    (1) A means to prevent backflow of vapor from the facility's main 
VCS to the marine vapor line; and
    (2) Two fail-safe, quick-closing valves installed in the marine 
vapor line at the facility storage tank that automatically close when--
    (i) Flame is detected on the facility storage tank; or
    (ii) The temperature of the facility storage tank's vapor space 
reaches 177[deg]C (350[emsp14][deg]F) or 70 percent of the vapor's 
auto-ignition temperature in degrees Celsius, whichever is lower.
    (c) Transferring vapor from a non-inerted facility storage tank to 
a vessel cargo tank that is required to be inerted in accordance with 
46 CFR 32.53, 153.500, or Table 151.05, is prohibited.
    (d) A vapor balancing system that transfers vapor to a vessel cargo 
tank must not use a vapor-moving device to assist vapor transfer or 
inject inerting, enriching, or diluting gas into the vapor line without 
approval from the Commandant.

Sec.  154.2111  Vapor control system connected to a facility's main 
vapor control system.

    (a) When a marine vapor control system (VCS), or a marine vapor 
collection system, is connected to a facility's main VCS serving other 
facility processing areas that are not related to tank vessel 
operations, the marine vapor line, before the point where the marine 
VCS connects to the facility's main VCS, must be fitted with--
    (1) A detonation arrester, unless both the marine VCS and the 
facility's main VCS only control vapors of cargoes that are non-
flammable, non-combustible, or that have high flashpoints;
    (2) Two fail-safe, quick closing valves, one on each side of any 
detonation arrester required by paragraph (a)(1) of this section, which 
automatically close when--
    (i) A flame is detected on the detonation arrester;
    (ii) The facility's marine VCS is not in operation; or
    (iii) Vapor back flow to the marine vapor line is detected; and
    (3) A means to prevent backflow of vapors to the marine vapor line.
    (b) Vapors from facility processing areas unrelated to tank vessel 
operations must not enter the vapor line of a marine VCS before the 
devices required by paragraph (a) of this section.
    (c) Except as specified by paragraph (d) of this section, a 
facility that wants to connect a facility vapor line, which collects 
vapor from other facility processing areas that are not related to tank 
vessel operations, to a marine VCS before the devices required by 33 
CFR 154.2109(b)(1) and (2) and (c)(2), must receive approval in writing 
from the Commandant.
    (d) A facility may connect a facility vapor line, which collects 
vapor from other facility processing areas that are not related to tank 
vessel operations, to a marine vapor line downstream of the devices 
required by 33 CFR 154.2109(b)(1) and (2) and (c)(2) to share the 
marine vapor destruction unit.

Sec.  154.2112  Vapors with potential to polymerize or freeze--special 
requirements.

    (a) A vapor control system (VCS) that controls vapors with the 
potential to polymerize at a normal ambient condition must--
    (1) Be designed to prevent condensation of monomer vapor. Methods 
such as heat tracing and insulation are permitted if they do not result 
in an increased risk of polymerization;
    (2) Be designed so that polymerization can be detected. Any points 
suspected of being sites for potential polymerization buildup must be 
equipped with inspection openings; and
    (3) Include devices to measure the pressure drop across detonation 
arresters due to polymerization. The devices should activate an alarm 
on high pressure drop to warm of polymerization. Any device used for 
this purpose, including differential pressure monitors, must not have 
the capability of transmitting a detonation across the detonation 
arrester.
    (b) A VCS that controls cargo vapors that potentially freeze at 
ambient temperature must have a design that prevents the freezing of 
vapors or condensate at ambient temperature or that detects and removes 
the liquid condensate and solids to prevent accumulation.

Sec.  154.2113  Alkylene oxides--special requirements.

    A vapor control system (VCS) that controls vapors of an alkylene 
oxide, except for carriage under 46 CFR part 151 (listed in Table 
151.05 with ``Pressure'' entry in the ``Cargo identification, Pressure, 
b'' column), must comply with paragraphs (a) and (b) of this section.
    (a)(1) The VCS's equipment, hoses, piping, and all piping 
components, including valves, flanges, and fittings, must be of a type 
and constructed out of materials suitable for use with alkylene oxide;
    (2) The VCS used for collecting an alkylene oxide vapor must not be 
used for collecting other vapors and must be separated from any other 
VCS, except as specified by paragraph (b) of this section; and
    (b) The VCS must be adequately cleaned in accordance with 33 CFR 
154.2150(p) and either recertified by a certifying entity or approved 
by a marine chemist if--
    (1) The VCS is used to control other vapors; or
    (2) The VCS is returned to alkylene oxide service after being used 
to control other cargo vapors.

Transfer Facilities--Operations

Sec.  154.2150  General requirements.

    (a) No transfer operation using a vapor control system (VCS) may be 
conducted unless the facility operator has a copy of the facility 
operations manual, with the VCS addendum, marked by the local Coast 
Guard Captain of the Port (COTP) as required by 33 CFR 154.325(d).
    (b) Personnel in charge of a facility must ensure that--
    (1) The facility controls vapor only from cargoes that are properly 
authorized for vapor control in the facility's certification letter;

[[Page 42632]]

    (2) The facility transfers vapor only to or from a vessel that has 
its certificate of inspection or certificate of compliance endorsed in 
accordance with 46 CFR 39.1013 or 46 CFR 39.1015 for each cargo 
intended for transfer; and
    (3) If the vessel tanks to be vapor controlled contain vapor from 
previous cargo transfers other than the cargo or cargoes intended for 
transfer, the facility and vessel must be authorized to control the 
additional vapor from the previous cargo transfers. Any oxygen or 
hydrocarbon analyzer alarm and shutdown setpoints must be set to 
accommodate all of the cargo vapors.
    (c) The facility personnel in charge must ensure that safety system 
testing is conducted as follows:
    (1) Pressure sensors, alarms, and automatic shutdown systems 
required by 33 CFR 154.2103, 154.2107, and 154.2110, except as exempted 
by paragraph (c)(2) or specified by paragraph (c)(3) of this section, 
must be tested by applying altering test pressures at the sensors not 
more than 24 hours before each transfer;
    (2) The pressure sensors required by 33 CFR 154.2103 may meet the 
requirements of the test program contained in 33 CFR 154.2180 and 33 
CFR 154.2181 instead of the current program, which mandates tests 
within 24 hours before each transfer as required by paragraph (c)(1) of 
this section;
    (3) Visible and audible alarm indicators must be tested not more 
than 24 hours before each transfer;
    (4) The analyzers, except for flammability analyzers, required by 
33 CFR 154.2105, 154.2107, and 154.2110, except as exempted by 
paragraph (c)(5) of this section, must be checked for calibration 
response by using a zero gas and a span gas not more than 24 hours 
before each transfer;
    (5) The analyzers required by 33 CFR 154.2105, 154.2107, and 
154.2110 may be checked for calibration response by use of a zero gas 
and a span gas as defined by the test program contained in 33 CFR 
154.2180 and 33 CFR 154.2181, and comply with the minimum requirements 
as defined in 33 CFR 154.2180 and 33 CFR 154.2181, instead of the test 
required by paragraph (c)(4) of this section; and
    (6) The vacuum and pressure relief valves required by 33 CFR 
154.2103 must be manually checked per manufacturers' instructions to 
verify that the valves unseat easily and then reset to the closed 
position without constraint. Any required flame screens or flame 
arresters must also be visually checked to ensure that they are not 
damaged.
    (d) The proper position of all valves in the vapor line between the 
vessel's tanks and the facility vapor collection system must be 
verified before the start of the transfer operation.
    (e) A tank barge overfill control system that meets the 
requirements of 46 CFR 39.2009(a)(2) must--
    (1) Not be connected to an overfill sensor circuit that exceeds the 
system's rated inductance and capacitance; and
    (2) Be tested for proper operation after connection is made with 
the vessel by simulating liquid high level and overfill at each tank.
    (f) When receiving vapor from a vessel with cargo tanks that are 
required to be inerted in accordance with 46 CFR 32.53, 46 CFR 153.500, 
or 46 CFR Table 151.05, the remotely operated cargo vapor shutoff valve 
required by 33 CFR 154.2101(a) must not be opened until the pressure at 
the facility vapor connection, downstream of the facility vapor 
connection, exceeds 0.2 pounds per square inch gauge (psig).
    (g) The initial cargo transfer rate must not exceed the rate agreed 
upon at the pre-transfer conference and 46 CFR 39.3001(g).
    (h) The cargo transfer rate must not exceed the maximum allowable 
transfer rate as determined by the lesser of the following:
    (1) A transfer rate corresponding to the maximum vapor processing 
rate for the VCS, as specified in the facility operations manual; or
    (2) The vessel's maximum transfer rate in accordance with 46 CFR 
39.3001(d).
    (i) While transferring cargo to a vessel connected to a VCS, 
compressed air or gas may be used to clear cargo hoses and loading 
arms, but must not be used to clear cargo lines. However, compressed 
inert gas such as nitrogen can be used to clear cargo lines if a 
pigging system that meets 33 CFR 154.2104 is provided.
    (j) If a pigging system is used to clear cargo lines to the tank 
vessel while the vessel is connected to the facility VCS, the following 
operational requirements apply:
    (1) The VCS must be in operation, with all of the high-pressure 
alarms and shutdowns required by 33 CFR 154.2103 active, before and 
during pigging operations;
    (2) Personnel performing the pigging operation must be adequately 
trained on the specific pigging system being used. Accurate written 
procedures that address event sequence, equipment, safety precautions, 
and overpressurization hazards must be made available to all personnel 
involved in the pigging operations;
    (3) Pigging procedures must be reviewed by both the vessel and 
facility personnel in charge as part of the pre-transfer conference. 
Topics of discussion during the pre-transfer conference must include, 
but need not be limited to--
    (i) Event sequence;
    (ii) Equipment;
    (iii) Safety precautions;
    (iv) Overpressurization hazards;
    (v) Personnel roles;
    (vi) Gas volumetric flow rates;
    (vii) Gas pressures;
    (viii) Volume of residual cargo in the line;
    (ix) Amount of ullage space that is available for line displacement 
and connections;
    (x) Valve alignment;
    (xi) Units of measure;
    (xii) Terminology; and
    (xiii) Anticipated duration of the evolution;
    (4) The pig must be inspected to ensure that it is of sufficient 
durability and condition; be of an appropriate size, type, and 
construction for the intended operation; and be inspected for defects 
before each use and replaced if necessary;
    (5) Personnel performing pigging operations must monitor pig 
movement at all times. The facility and vessel manifold valves must be 
closed immediately after the pig reaches the pig-receiving device; and
    (6) If the pigging system contains pressure-sensing, relieving, or 
alarming components in addition to those required by 33 CFR 154.2103, 
the components must be periodically tested in accordance with 
paragraphs (c) and (q) of this section.
    (k) If one or more analyzers required by 33 CFR 154.2107(d) or (e) 
or 154.2110 become inoperable during a transfer operation, the 
operation may continue, provided that at least one analyzer remains 
operational; however, no further transfer operations may start until 
all inoperable analyzers are replaced or repaired.
    (l) Whenever a condition results in a shutdown of the VCS, the 
emergency shutdown system required by 33 CFR 154.550 must be 
automatically activated to terminate cargo loading into tanks which are 
being vapor controlled.
    (m) If it is suspected that a flare in the VCS has had a flashback, 
or if a flame is detected on a detonation arrester required by 33 CFR 
154.2109(c)(2), the transfer operation must stop and cannot restart 
until that detonation arrester and any quick-closing stop valves 
downstream of the detonation arrester are inspected and found to be in 
satisfactory condition.

[[Page 42633]]

    (n) Before each transfer operation, the freezing point of each 
cargo must be determined. If there is a possibility that the ambient 
air temperature during transfer operations will be at or below the 
freezing point of the cargo, adequate precautions must be taken to 
prevent freezing of vapor or condensate, or to detect and remove the 
frozen liquid and condensation to prevent accumulation.
    (o) Before each transfer operation, the cargo vapor must be 
evaluated to determine its potential to polymerize, and adequate 
precautions must be taken to prevent and detect polymerization of the 
cargo vapors.
    (p) Mixing of incompatible vapors is prohibited. The VCS piping, 
equipment, hoses, valves, and arresters must be purged between vapor 
control operations that involve incompatible chemical vapors in 
accordance with the following:
    (1) Chemical compatibility must be determined by using the 
procedures contained in 46 CFR part 150;
    (2) Purge gas must be an inert gas, air, or enriching gas, and must 
be adequate to reduce the level of residual vapor to a level at which 
reaction with the subsequent vapor cannot occur; and
    (3) The required duration of purge time must be calculated and 
approved by the certifying entity during the certification or 
recertification.
    (q) After each transfer operation, the VCS piping, equipment, 
hoses, valves, and arresters must be purged with at least two-system 
volume exchanges of non-reactive gas or air so the VCS is left with a 
safe condition.
    (r) VCS equipment and instrumentation must be tested in compliance 
with 33 CFR 156.170(g) or (i), with the COTP or designated 
representative invited to observe these tests. The test procedure and a 
checklist must be approved by the certifying entity during the initial 
certification of the system and incorporated into the facility 
operations manual.
    (s) A transfer operation that includes collection of vapor emitted 
to or from a vessel's cargo tanks must meet the transfer requirements 
of 33 CFR 156.120(aa), and a declaration of inspection meeting the 
requirements of 33 CFR 156.150 must be completed before each transfer.

Alternative Analyzer and Pressure Sensor Reliability Testing

Sec.  154.2180  Alternative testing program--generally.

    (a) As an alternative to complying with the vapor control system 
(VCS) analyzer and pressure sensor safety testing requirements provided 
by 33 CFR 154.2150(c) and 33 CFR 154.2250(c), the facility person in 
charge may administer a reliability assurance test program in 
accordance with this section and 33 CFR 154.2181.
    (b) As used in this section--
    (1) Calibration drift or CD means the difference in the analyzer 
output readings from the established reference value after a stated 
period of operation during which no unscheduled maintenance, repair, or 
adjustment took place;
    (2) Calibration error or CE means the difference between the gas 
concentration exhibited by the gas analyzer and the known concentration 
of the cylinder gas;
    (3) Response time or RT means the time interval between the start 
of a step change in the system input (e.g., change of calibration gas) 
and the time when the data recording system displays 95 percent of the 
final stable value; and
    (4) Sampling system bias or SSB means the difference between the 
gas concentrations indicated by the measurement system when a known 
cylinder gas is introduced at or near the sampling probe and when the 
same gas is introduced directly to the analyzer.
    (c) All analyzers used in a VCS must be tested for safety system 
functions, CE, CD, RT, and SSB, in accordance with 33 CFR 154.2181.
    (d) All pressure sensors/switches used in a VCS must be tested for 
safety system functions, CE and CD, in accordance with 33 CFR 154.2181.
    (e) The facility person in charge must ensure the following:
    (1) Calibration of instrumentation using standard procedures 
provided by the manufacturer or service provider;
    (2) Monitoring of all interlocks, alarms, and recording devices for 
proper operation while instrumentation is being calibrated;
    (3) Use of a certified gas standard that is within plus or minus 
two (2) percent of its certified concentration to calibrate the 
analyzers; and
    (4) Use of a certified secondary standard that is standardized 
against a primary standard to calibrate the pressure sensors/switches.
    (f) Upon failing any test under 33 CFR 154.2181, the facility 
person in charge must ensure that all monthly and quarterly tests, 
including CE, CD, RT, and SSB, are conducted; and until all quarterly 
tests are completed, the person in charge must ensure that the vapor 
control alarms and automatic shutdown system are tested no more than 24 
hours prior to any transfer or tank barge cleaning operation.
    (g) Analyzers required by 33 CFR 154.2105(a) and (j) and 
154.2107(d) and (e) must be checked for calibration using a zero gas 
and a span gas.
    (h) The facility operator must maintain and make available upon the 
request of the Commandant and the certifying entity that certifies the 
VCS the following reliability assurance test program documents for two 
years:
    (1) All test procedures;
    (2) The dates of all tests, type of tests made, and who conducted 
the tests;
    (3) Results of the tests, including the ``as found'' and ``as 
left'' conditions; and
    (4) A record of the date and time of repairs made.

Sec.  154.2181  Alternative testing program--test requirements.

    (a) The safety system function test required by 33 CFR 154.2180 
must be performed once every two weeks and test for the proper 
operation and interaction of the analyzer or pressure sensor/switch 
with shutdown interlocks, and audible and visible alarm devices.
    (b) The calibration error (CE) test required by 33 CFR 154.2180 
must be performed once every month and documented as shown in Forms 
154.2181(b)(2) and 154.2181(b)(3) of this section, to document the 
accuracy and linearity of the monitoring equipment for the entire 
measurement range.
    (1) The CE test must expose the measurement system, including all 
monitoring components (e.g., sample lines, filters, scrubbers, 
conditioners, and as much of the probe as practicable), to the 
calibration gases, introduced through an injection port located so as 
to allow a check of the entire measurement system when calibration 
gases are introduced;
    (2) The CE test must check the calibrated range of each analyzer 
using a lower (zero) and upper (span) reference gas standard. Three 
measurements must be taken against each standard and recorded as shown 
in Form 154.2181(b)(2) of this section, with the average of the three 
values in each case then used to calculate the CE according to this 
equation (where CE = percentage calibration error based upon span of 
the instrument, R = reference value of zero or high-level calibration 
gas introduced into the monitoring system, A = actual monitoring system 
response to the calibration gas, and S = span of the instrument):
[GRAPHIC] [TIFF OMITTED] TR16JY13.001

Form 154.2181(b)(2): Calibration error determination.

[[Page 42634]]

----------------------------------------------------------------------------------------------------------------
                                                                                            Difference
                                                    Calibration       Monitor    -------------------------------
                                                       value         response          Zero            Span
----------------------------------------------------------------------------------------------------------------
1-Zero..........................................
----------------------------------------------------------------------------------------------------------------
1-Span..........................................
----------------------------------------------------------------------------------------------------------------
2-Zero..........................................
----------------------------------------------------------------------------------------------------------------
2-Span..........................................
----------------------------------------------------------------------------------------------------------------
3-Zero..........................................
----------------------------------------------------------------------------------------------------------------
3-Span..........................................
----------------------------------------------------------------------------------------------------------------
                                Mean Difference =
                                                                                 -------------------------------
                               Calibration Error =                                             %               %
                                                                                 -------------------------------
----------------------------------------------------------------------------------------------------------------

    (3) The CE test must check each pressure sensor/switch for upscale 
(activate) and downscale (deactivate) hysteresis around the sensor/
switch set pressure. The calibration error must be calculated and 
recorded as shown in Form 154.2181(b)(3) of this section. Test the 
pressure sensor/switch three times and record the desired setting and 
the as-found set pressure. Calculate and record the difference of the 
two settings. Calculate the error percentage using this equation (where 
CE = percentage calibration error based upon span of the instrument, R 
= reference setting of the instrument, A = actual response as recorded 
on the test instrument, and S = span of the instrument):
[GRAPHIC] [TIFF OMITTED] TR16JY13.002

Record sensor ``as-left'' setting only if an adjustment is made.

[[Page 42635]]

[GRAPHIC] [TIFF OMITTED] TR16JY13.003

    (c) The calibration drift (CD) test required by 33 CFR 154.2180 
must be performed once every quarter and documented as shown in Form 
154.2181(c)(3) of this section, to verify

[[Page 42636]]

the ability of the instrument to conform to the established 
calibration.
    (1) The CD measurement must be conducted once daily for 7 
consecutive days without making any adjustments to the instruments.
    (2) Conduct the CD test at zero level (between 0 and 20 percent of 
the instrument span) and at high level (between 75 and 95 percent of 
the instrument span).
    (3) Calculate and record the CD for 7 consecutive days using the 
equations in paragraphs (b)(2) and (3) of this section and Form 
154.2181(c)(3) of this section.

Form 154.2181(c)(3): Calibration drift determination.

----------------------------------------------------------------------------------------------------------------
                                                     Reference
               Day                   Day/time       value (RV)     Monitor value    Difference     Percent of RV
----------------------------------------------------------------------------------------------------------------
Low-Level:
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
High-Level:
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------

    (d) The response time (RT) test required by 33 CFR 154.2180 must be 
performed once every quarter and documented as shown in Form 
154.2181(d) of this section, to determine the RT which is the largest 
average response time in the upscale or downscale direction.
    (1) For systems that normally operate below 20 percent of 
calibrated range, only a span (upscale) test is required.
    (2) Record the span (upscale) value, zero (downscale) cylinder gas 
value, and stable, initial process-measured variable value.
    (3) Determine the step change, which is equal to the average 
difference between the initial process-measured variable value and the 
average final stable cylinder gas-measured value.
    (4) To determine both upscale and downscale step change intervals--
    (i) Inject span (or zero) cylinder gas into the sample system as 
close to the sample probe as possible. Existing systems that inject the 
gas at the analyzer box do not need to be modified. However, the gas 
transit time between the analyzer box and the sample probe must be 
taken into account;
    (ii) Allow the analyzer to stabilize and record the stabilized 
value. A stable reading is achieved when the concentration reading 
deviates less than 6 percent from the measured average concentration in 
6 minutes or if it deviates less than 2 percent of the monitor's span 
value in 1 minute;
    (iii) Stop the span (or zero) gas flow, allow the monitor to 
stabilize back to the measured variable value, and record the 
stabilized value; and
    (iv) Repeat this procedure a total of three times and subtract the 
average final monitor reading from the average starting monitor value 
to determine the average upscale (or downscale) step change.
    (5) Determine the response time, which is equal to the elapsed time 
at which 95 percent of the step change occurred.
    (i) To find this value, take 5 percent of the average step change 
value and subtract the result from the cylinder gas analyzed value as 
shown in the following equation:

95% step change value = cylinder gas value - (0.05 x avg. step change)
    (ii) Inject span (or zero) cylinder gas into the sample system as 
close to the sample probe as possible, and measure the time it takes to 
reach the 95 percent step change value.
    (iii) Repeat the previous step (paragraph (d)(5)(ii) of this 
section) a total of three times each with span and zero cylinder gas to 
determine average upscale and downscale response times.
    (iv) Compare the response times achieved for the upscale and 
downscale tests. The longer of these two times equals the response time 
for the analyzer.

[[Page 42637]]

[GRAPHIC] [TIFF OMITTED] TR16JY13.004

    (e) The sample system bias (SSB) test required by 33 CFR 154.2180 
must be performed once every quarter and documented, to establish that 
the system has no additional influence on the measurement being made by 
the analyzer.
    (1) Conduct a close CE test in accordance with paragraph (b) of 
this section, by injecting calibration gas as close as possible to the 
analyzer, eliminating as much of the sample system components as 
possible, while still simulating the normal source operating 
conditions.
    (2) If system integrity is maintained, and it has not become 
contaminated, the difference between the close and standard CE tests 
should be the same.
    (f) For CE and CD tests, analyzers and pressure sensors must meet 
the following minimum compliance requirements:
    (1) Oxygen analyzers must not deviate from the reference value of 
the zero- or high-level calibration gas by more than 0.5 percent of 
full scale;
    (2) Total hydrocarbon analyzers must not deviate from the reference 
value of the zero- or high-level calibration gas by more than 1 percent 
of full scale; and
    (3) Pressure sensors/switches must not deviate from the reference 
value of the zero- or high-level calibration gas by more than 1.5 
percent of full range.
    (g) For RT tests, each oxygen or hydrocarbon analyzer must respond, 
in less than 1 minute, to 95 percent of the final stable value of a 
test span gas.
    (h) For SSB tests, the analyzer system bias must be less than 5 
percent of the average difference between the standard CE test and the 
close CE test, divided by the individual analyzer span.

Tank Barge Cleaning Facilities--VCS Design and Installation

Sec.  154.2200  Applicable transfer facility design and installation 
requirements.

    A tank barge cleaning facility's (TBCF's) vapor control system 
(VCS) must meet the following design and installation requirements of 
this subpart for a transfer facility's VCS:
    (a) 33 CFR 154.2100(b), (c), (f), (g), (i), (j), and (k): general 
design and installation requirements;
    (b) 33 CFR 154.2102: facility requirements for vessel liquid 
overfill protection, if a TBCF receives vapor from a tank barge that is 
required by 46 CFR 39.6001(f)(3) to be equipped with a liquid overfill 
protection arrangement and meet 46 CFR 39.2009;
    (c) 33 CFR 154.2106: detonation arrester installation;
    (d) 33 CFR 154.2107: inerting, enriching, and diluting systems;

[[Page 42638]]

    (e) 33 CFR 154.2108: vapor-moving devices;
    (f) 33 CFR 154.2109: vapor recovery and vapor destruction units;
    (g) 33 CFR 154.2111: VCS connected to a facility's main VCS;
    (h) 33 CFR 154.2112: special requirements for vapors with the 
potential to polymerize or freeze; and
    (i) 33 CFR 154.2113: special requirements for alkylene oxides.

Sec.  154.2201  Vapor control system--general requirements.

    (a) Vapor control system (VCS) design and installation must 
eliminate potential overpressure and vacuum hazards, sources of 
ignition, and mechanical damage to the maximum practicable extent. Each 
remaining hazard source that is not eliminated must be specifically 
addressed in the protection system design and system operational 
requirements.
    (b) Any pressure, flow, or concentration indication required by 
this part must provide a remote indicator on the facility where the VCS 
is controlled, unless the local indicator is clearly visible and 
readable from the operator's normal position at the VCS control 
station.
    (c) Any condition requiring an alarm as specified in this part must 
activate an audible and visible alarm where the VCS is controlled.
    (d) A mechanism must be developed and used to eliminate any liquid 
from the VCS.
    (e) A liquid knockout vessel must be installed between the facility 
vapor connection and any vapor-moving device in systems that have the 
potential for two-phase (vapor/liquid) flow from the barge or the 
potential for liquid condensate to form as a result of the enrichment 
process. The liquid knockout vessel must have--
    (1) A means to indicate the level of liquid in the device;
    (2) A high liquid level sensor that activates an alarm that 
satisfies the requirements of 33 CFR 154.2100(e); and
    (3) A high-high liquid level sensor that closes the remotely 
operated cargo vapor shutoff valve required by 33 CFR 154.2101(a) and 
shuts down any vapor-moving device before liquid is carried over to the 
vapor-moving device. One sensor with two stages may be used to meet 
this requirement as well as paragraph (e)(2) of this section.

Sec.  154.2202  Vapor line connections.

    (a) 33 CFR 154.2101(a), (e), and (g) apply to a tank barge cleaning 
facility's (TBCF's) vapor control system (VCS).
    (b) The remotely operated cargo vapor shutoff valve required by 33 
CFR 154.2101(a) must be located upstream of the liquid knockout vessel 
required by 33 CFR 154.2201(e).
    (c) A fluid displacement system must have a remotely operated 
shutoff valve installed in the fluid injection supply line between the 
point where the inert gas or other medium is generated and the fluid 
injection connection. The valve must comply with 33 CFR 154.2101(a)(1) 
through (6).
    (d) Each hose used for transferring vapors must--
    (1) Have a design burst pressure of at least 25 pounds per square 
inch gauge (psig);
    (2) Have a maximum allowable working pressure (MAWP) no less than 5 
psig;
    (3) Be capable of withstanding at least the maximum vacuum rating 
of the vapor-moving device without collapsing or constricting;
    (4) Be electrically continuous, with a maximum resistance of 10,000 
ohms;
    (5) Have flanges with a bolthole arrangement complying with the 
requirements for Class 150 ANSI B16.5 flanges (incorporated by 
reference, see 33 CFR 154.106);
    (6) Be abrasion and kinking resistant; and
    (7) Be compatible with vapors being transferred.
    (e) Fixed vapor collection arms must meet the requirements of 
paragraph (d) of this section.

Sec.  154.2203  Facility requirements for barge vapor overpressure and 
vacuum protection.

    In this section, the requirements of having a flame arrester or a 
flame screen at the opening of a pressure relief valve or a vacuum 
relief valve apply only to facilities collecting vapors of flammable, 
combustible, or non-high flash point liquid cargoes.
    (a) A facility vapor collection system must have a capacity for 
collecting cleaning facility vapors at a rate of no less than 1.1 times 
the facility's maximum allowable gas-freeing rate, plus any inerting, 
diluting, or enriching gas that may be added to the system.
    (b) A facility vapor control system (VCS) must be designed to 
prevent the pressure in a vessel's cargo tanks from going below 80 
percent of the highest setting of any of the barge's vacuum relief 
valves or exceeding 80 percent of the lowest setting of any of the 
barge's pressure relief valves. The VCS must be capable of maintaining 
the pressure in the barge's cargo tanks within this range at any gas-
freeing rate less than or equal to the maximum gas-freeing rate 
determined by the requirements in 46 CFR 39.6007(c).
    (c) A fluid displacement system must provide a pressure-sensing 
device that activates an alarm that satisfies the requirements of 33 
CFR 154.2100(e) when the pressure at the fluid injection connection 
exceeds either the pressure corresponding to the upper pressure 
determined in paragraph (b) of this section or a lower pressure agreed 
upon by the facility and barge persons in charge. The pressure-sensing 
device must be located in the fluid displacement system's piping 
downstream of any devices that could potentially isolate the barge's 
vapor collection system from the pressure-sensing device. The pressure 
measured by the sensing device must be corrected for pressure drops 
across any barge piping, hoses, or arms that are used to inject the 
fluid.
    (d) A fluid displacement system must provide a pressure-sensing 
device that is independent of the device required by paragraph (c) of 
this section. This pressure-sensing device must activate the fluid 
displacement system emergency shutdown and close the remotely operated 
cargo vapor shutoff valve required by 33 CFR 154.2101(a). It must also 
close the remotely operated shutoff valve required by 33 CFR 
154.2202(c) when the pressure at the fluid injection connection reaches 
a corresponding 90 percent of the lowest setting of any pressure relief 
valve on the barge. The pressure-sensing device must be located in the 
fluid displacement system's piping downstream of any device that could 
potentially isolate the barge's VCS from the pressure-sensing device. 
The pressure measured by the sensing device must be corrected for 
pressure drops across any barge piping, hoses, or arms that are used to 
inject the fluid.
    (e) If a vapor-moving device capable of drawing more than 0.5 
pounds per square inch gauge (psig) vacuum is used to draw vapor, air, 
inert gas, or other medium from the barge, a vacuum relief valve must 
be installed on the facility's fixed vapor collection system piping 
between the facility vapor connection and the vapor-moving device. The 
vacuum relief valve must--
    (1) Relieve at a pressure such that the pressure at the facility 
vapor connection is maintained at or above 14.2 pounds per square inch 
absolute (psia) (-0.5 psig);
    (2) Have a relieving capacity equal to or greater than the maximum 
capacity of the vapor-moving device;
    (3) Have a flame arrester or flame screen fitted at the vacuum 
relief opening;
    (4) Have been tested for relieving capacity in accordance with 
paragraph 1.5.1.3 of API 2000 (incorporated by

[[Page 42639]]

reference, see 33 CFR 154.106), with a flame arrester or flame screen 
fitted; and
    (5) Be constructed of materials compatible with the vapors being 
gas-freed.
    (f) The vacuum relief valve requirements of paragraph (e) of this 
section may include a valve to isolate it from the facility vapor 
collection piping, provided--
    (1) The isolation valve must be interlocked with any vapor-moving 
device such that the vapor-moving device cannot activate unless the 
isolation valve is in the full open position (i.e., the vacuum relief 
valve is not isolated); and
    (2) The isolation valve can only be closed after the facility 
person in charge has acknowledged that the hatch opening required by 33 
CFR 154.2250(i) is open and secured.
    (g) If a vapor-moving device capable of drawing more than 0.5 psig 
vacuum is used to draw vapor, air, inert gas, or other medium from the 
barge, the facility must install portable, intrinsically safe, 
pressure-sensing devices on any cargo tank, or on the common vapor 
header, at the connection required by 46 CFR 39.6003(b) before any 
cleaning operation begins on the tank. A pressure-sensing device must 
be provided that--
    (1) Activates an alarm that satisfies 33 CFR 154.2100(e) when the 
pressure in the cargo tank being cleaned falls below 80 percent of the 
highest setting of any of the barge's vacuum relief valves, or a higher 
pressure agreed upon by the facility and barge persons in charge; and
    (2) Activates the emergency shutdown system for the vapor-moving 
device and closes the remotely operated cargo vapor shutoff valve 
described in 33 CFR 154.2101(a) when the pressure in the cargo tank 
being cleaned falls below 90 percent of the highest setting of any of 
the barge's vacuum relief valves, or a higher pressure agreed upon by 
the facility and barge persons in charge. This pressure-sensing device 
must be independent of the device used to activate an alarm required by 
paragraph (g)(1) of this section.
    (h) The pressure-sensing devices required by paragraph (g) of this 
section must--
    (1) Have suitable means, such as approved intrinsic safety barriers 
that are able to accept passive devices, so that the under-pressure 
alarm circuits of the barge side of the under-pressure control system, 
including cabling, normally closed switches, and pin and sleeve 
connectors, are intrinsically safe;
    (2) Be connected to the under-pressure alarm system by a four-wire, 
16-ampere shielded flexible cable; and
    (3) Have cable shielding grounded to the under-pressure alarm 
system.
    (i) A pressure-indicating device must be provided within 6 meters 
(19.7 feet) of the facility vapor connection which displays the 
pressure in the vapor collection line upstream of any isolation valve 
and any devices, such as strainers, that could cause a blockage in the 
vapor line.
    (j) A fluid displacement system must include a pressure-indicating 
device that displays the pressure in the fluid displacement system 
injection line. This device must be within 6 meters (19.7 feet) of the 
fluid injection connection.
    (k) If a fluid displacement system used to inject inert gas or 
another medium into the cargo tank of a barge being gas-freed is 
capable of producing a pressure greater than 2 psig, a pressure relief 
valve must be installed in the fluid displacement system injection line 
between the fluid injection source and the fluid injection connection 
that--
    (1) Relieves at a predetermined pressure such that the pressure in 
the fluid displacement system at the fluid injection connection does 
not exceed 1.5 psig;
    (2) Has a relieving capacity equal to or greater than the maximum 
volumetric flow capacity of the fluid displacement system;
    (3) Has a flame screen or flame arrester fitted at the relief 
opening; and
    (4) Has been tested for relieving capacity in accordance with 
paragraph 1.5.1.3 of API 2000, when fitted with a flame screen or flame 
arrester.
    (l) When using the fluid displacement system, if the pressure in 
the facility's fixed vapor collection system can exceed 2 psig during a 
malfunction in an inerting, enriching, or diluting system, a pressure 
relief valve must--
    (1) Be installed between the point where inerting, enriching, or 
diluting gas is added to the facility's fixed vapor collection system 
piping and the facility vapor connection;
    (2) Relieve at a predetermined pressure such that the pressure at 
the facility vapor connection does not exceed 1.5 psig;
    (3) Have a relieving capacity equal to or greater than the maximum 
capacity of the facility's inerting, enriching, or diluting gas source;
    (4) Have a flame screen or flame arrester fitted at the relief 
opening;
    (5) Have been tested for relieving capacity in accordance with 
paragraph 1.5.1.3 of API 2000, when fitted with a flame screen or flame 
arrester; and
    (6) Be constructed of materials compatible with the vapors being 
gas-freed.
    (m) For fluid displacement systems, the fluid injection connection 
must be electrically insulated from the fluid injection source in 
accordance with OCIMF ISGOTT section 17.5 (incorporated by reference, 
see 33 CFR 154.106).
    (n) If the pressure relief valve is not designed with a minimum 
vapor discharge velocity of 30 meters (98.4 feet) per second, the 
relieving capacity test required by paragraphs (k)(4) and (l)(5) of 
this section must be carried out with a flame screen or flame arrester 
fitted at the discharge opening.
    (o) A pressure indicating device must be provided by the facility 
for installation at the connection required by 46 CFR 39.6003(b).

Sec.  154.2204  Fire, explosion, and detonation protection.

    This section applies to tank barge cleaning facilities (TBCFs) 
collecting vapors of flammable, combustible, or non-high flash point 
liquid cargoes.
    (a) A vapor control system (VCS) with a single facility vapor 
connection that processes vapor with a vapor recovery unit must--
    (1) Have a detonation arrester located as close as practicable to 
the facility vapor connection. The total pipe length between the 
detonation arrester and the facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; or
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (b) A VCS with a single facility vapor connection that processes 
vapor with a vapor destruction unit must--
    (1) Have a detonation arrester located as close as practicable to 
the facility vapor connection. The total pipe length between the 
detonation arrester and the facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; and
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (c) A VCS with multiple facility vapor connections that processes 
vapor with a vapor recovery unit must have a detonation arrester 
located as close as practicable to each facility vapor

[[Page 42640]]

connection. The total pipe length between the detonation arrester and 
each facility vapor connection must not exceed 18 meters (59.1 feet) 
and the vapor piping between the detonation arrester and the facility 
vapor connection must be protected from any potential internal or 
external ignition source.
    (d) A VCS with multiple facility vapor connections that processes 
vapor with a vapor destruction unit must--
    (1) Have a detonation arrester located as close as practicable to 
each facility vapor connection. The total pipe length between the 
detonation arrester and each facility vapor connection must not exceed 
18 meters (59.1 feet) and the vapor piping between the detonation 
arrester and the facility vapor connection must be protected from any 
potential internal or external ignition source; and
    (2) Have an inerting, enriching, or diluting system that meets the 
requirements of 33 CFR 154.2107.
    (e) 33 CFR 154.2105(j) applies to a TBCF's VCS.

Tank Barge Cleaning Facilities--Operations

Sec.  154.2250  General requirements.

    (a) No tank barge cleaning operation using a vapor control system 
(VCS) may be conducted unless the facility operator has a copy of the 
facility operations manual, with the VCS addendum, marked by the local 
Coast Guard Captain of the Port (COTP) as required by 33 CFR 
154.325(d).
    (b) The facility person in charge must ensure that a facility can 
receive vapors only from a barge with a VCS that has been approved by 
the Coast Guard Marine Safety Center as meeting the requirements of 46 
CFR 39.6000.
    (c) The facility person in charge must ensure that safety system 
tests are conducted as follows:
    (1) Pressure sensors, alarms, and automatic shutdown systems 
required by 33 CFR 154.2203, except as exempted by paragraph (c)(2) or 
as specified by paragraph (c)(3) of this section, must be tested by 
applying altering test pressures at the sensors not more than 24 hours 
before each cleaning operation;
    (2) The pressure sensors required by 33 CFR 154.2203 may meet the 
test program in accordance with 33 CFR 154.2180 and 33 CFR 154.2181 
instead of the test within 24 hours before each cleaning operation as 
required by paragraph (c)(1) of this section;
    (3) Visible and audible alarm indicators must be tested not more 
than 24 hours before each cleaning operation;
    (4) The analyzers, except for flammability analyzers, required by 
33 CFR 154.2105(j) and 154.2107, except as exempted by paragraph (c)(5) 
of this section, must be checked for calibration response by use of a 
zero gas and a span gas not more than 24 hours before each cleaning 
operation;
    (5) The analyzers required by 33 CFR 154.2105(j) and 154.2107 may 
be checked for calibration response by use of a zero gas and a span gas 
as defined by the test program contained in 33 CFR 154.2180 and 33 CFR 
154.2181, and comply with the minimum requirements as defined in 33 CFR 
154.2180 and 33 CFR 154.2181, instead of as provided by paragraph 
(c)(4) of this section; and
    (6) The vacuum and pressure relief valves required by 33 CFR 
154.2203 must be manually checked per manufacturers' instructions to 
verify that the valves unseat easily and then reset to the closed 
position without constraint. Any required flame screens or flame 
arresters must also be visually checked to ensure that they are not 
damaged.
    (d) The facility person in charge must verify the following before 
beginning cleaning operations:
    (1) Each valve in the vapor collection system between the barge's 
cargo tank and the facility vapor collection system is correctly 
positioned to allow the collection of vapors;
    (2) A vapor collection hose or arm is connected to the barge's 
vapor collection system;
    (3) The electrical insulating devices required by 33 CFR 
154.2101(g) and 154.2203(m) are installed;
    (4) The maximum allowable gas-freeing rate as determined by the 
lesser of the following:
    (i) A gas-freeing rate corresponding to the maximum vapor 
processing rate for the tank barge cleaning facility's (TBCF's) VCS, as 
specified in the facility operations manual; or
    (ii) The barge's maximum gas-freeing rate determined in accordance 
with 46 CFR 39.6007(c);
    (5) The gas-freeing rate will not exceed the maximum allowable gas-
freeing rate as determined in paragraph (d)(4) of this section;
    (6) The maximum allowable stripping rate is determined and does not 
exceed the volumetric capacity of the barge's vacuum relief valve at 
the valve's setpoint for the cargo tank being stripped;
    (7) The barge's maximum and minimum operating pressures;
    (8) Each vapor collection hose has no unrepaired or loose covers, 
kinks, bulges, soft spots, or any other defects that would permit the 
discharge of vapor through the hose material; and no external gouges, 
cuts, or slashes that penetrate the first layer of hose reinforcement;
    (9) The freezing point of each cargo. If there is a possibility 
that the ambient air temperature during cleaning operations will be at 
or below the freezing point of the cargo, adequate precautions have 
been taken to prevent freezing of vapor or condensate, or to detect and 
remove the frozen liquid and condensate to prevent accumulation; and
    (10) The cargo vapor is evaluated for the potential to polymerize, 
and adequate precautions have been taken to prevent and detect 
polymerization of the cargo vapors.
    (e) VCS equipment and instrumentation must be tested in compliance 
with 33 CFR 156.170(g) or (i), with the COTP or designated 
representative invited to observe these tests. The test procedure and a 
checklist must be approved by the certifying entity during the initial 
certification of the system and incorporated into the facility 
operations manual.
    (f) If one or more analyzers required by 33 CFR 154.2107(d) or (e) 
become inoperable during gas-freeing operations, the operation may 
continue, provided that at least one analyzer remains operational; 
however, no further gas-freeing operations may be started until all 
inoperable analyzers are repaired or replaced.
    (g) Whenever a condition results in a shutdown of the VCS, the 
cleaning operations must be immediately terminated. The operation may 
not resume until the cause of the shutdown has been investigated and 
corrective action taken.
    (h) If it is suspected that a flare in the VCS has had a flashback, 
or if a flame is detected on a detonation arrester required by 33 CFR 
154.2109(c)(2), the cleaning operation must be stopped and may not 
resume until the detonation arrester and any quick-closing stop valves 
downstream of the detonation arrester have been inspected and found to 
be in satisfactory condition.
    (i) If a vacuum displacement system is used for gas-freeing, the 
facility person in charge of the cleaning operation must verify the 
following items:
    (1) The minimum amount of open area for air flow on the barge has 
been determined so that the pressure in the cargo tank cannot be less 
than 14.5 pounds per square inch absolute (psia) (-0.2 pounds per 
square inch gauge (psig)) at the maximum flow capacity of the vapor-
moving device;

[[Page 42641]]

    (2) Any hatch or fitting providing the minimum open area has been 
secured open so that accidental closure is not possible; and
    (3) The hatch and/or fitting must be opened before the pressure in 
the cargo tank falls below 10 percent of the highest setting of any of 
the barge's vacuum relief valves.
    (j) 33 CFR 154.2150(p) and (q) apply to a TBCF's VCS.

Appendix A to part 154 [Amended]

0
10. In Appendix A, 7.3, after the words ``ANSI B16.5'', add the words 
``(incorporated by reference, see 33 CFR 154.106)''.

Appendix B to part 154 [Removed and Reserved]

0
11. Remove and reserve Appendix B to part 154.

PART 155--OIL OR HAZARDOUS MATERIAL POLLUTION PREVENTION 
REGULATIONS FOR VESSELS

0
12. The authority citation for part 155 is revised to read as follows:

    Authority: 33 U.S.C. 1225, 1231, 1321(j), 1903(b); 46 U.S.C. 
3703; E.O. 11735, 3 CFR, 1971-1975 Comp., p. 793; Department of 
Homeland Security Delegation No. 0170.1. Section 155.490 also issued 
under section 4110(b) of Pub. L. 101-380.

Sec.  155.750  [Amended]

0
13. In Sec.  155.750--
0
a. In paragraph (d)(3), remove the citation ``46 CFR 39.30-1(d)(1) 
through (d)(3)'' and add, in its place, the citation ``46 CFR 
39.3001(d)(1) through (3)'';
0
b. In paragraph (d)(4), remove the citation ``46 CFR 39.30-1(h)'' and 
add, in its place, the citation ``46 CFR 39.3001(g)''; and
0
c. In paragraph (d)(5), remove the citation ``46 CFR 39.30-1(b)'' and 
add, in its place, the citation ``46 CFR 39.3001(c)''.

PART 156--OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS

0
14. The authority citation for part 156 is revised to read as follows:

    Authority: 33 U.S.C. 1225, 1231, 1321(j); 46 U.S.C. 3703, 3703a, 
3715; E.O. 11735, 3 CFR 1971-1975 Comp., p. 793; Department of 
Homeland Security Delegation No. 0170.1.

0
15. In Sec.  156.120--
0
a. Revise paragraph (aa) introductory text;
0
b. In paragraph (aa)(4), remove the word ``loading'' and add, in its 
place, the word ``transfer'';
0
c. In paragraph (aa)(7) introductory text, after the words ``the 
transfer operation'', add the words ``or in accordance with 33 CFR 
154.2150(b)'';
0
d. In paragraph (aa)(7)(ii), remove the words ``Sec.  154.820(a), Sec.  
154.824(d) and (e) of this chapter'' and add, in their place, the words 
``33 CFR 154.2105(a) and (j) and 154.2107(d) and (e)'';
0
e. Revise paragraph (aa)(9); and
0
f. Add paragraphs (aa)(10) through (12).
    The revisions and additions read as follows:

Sec.  156.120  Requirements for transfer.

* * * * *
    (aa) A transfer operation which includes collection of vapor 
emitted to or from a vessel's cargo tanks through a vapor control 
system (VCS) not located on the vessel must have the following verified 
by the person in charge:
* * * * *
    (9) The oxygen content in the vapor space of each of the vessel's 
cargo tanks connected to the vapor collection system, if inerted, is--
    (i) At or below 60 percent by volume of the cargo's minimum oxygen 
concentration for combustion; or
    (ii) At or below 8 percent by volume, at the start of cargo 
transfer, for vapor of crude oil, gasoline blends, or benzene;
    (10) The freezing point of each cargo has been determined. If there 
is a possibility that the ambient air temperature during transfer 
operations will be at or below the freezing point of the cargo, 
adequate precautions have been taken to prevent freezing of vapor or 
condensate, or to detect and remove the liquid condensate and solids to 
prevent accumulation;
    (11) If the cargo has the potential to polymerize, adequate 
precautions have been taken to prevent and detect polymerization of the 
cargo vapors; and
    (12) The VCS has been cleaned, in accordance with 33 CFR 
154.2150(p), between transfers of incompatible cargoes.
* * * * *

0
16. In Sec.  156.170--
0
a. In paragraph (g) introductory text, after the words ``collects vapor 
emitted'', add the words ``to or'';
0
b. In paragraph (g)(3), remove the words ``Sec.  154.820, Sec.  
154.826(a), and Sec.  154.828(a) of this chapter or 46 CFR 39.40-3(d), 
and each flame arrester required by Sec.  154.826(a), Sec.  154.828(a) 
and (c) of this chapter'' and add, in their place, the words ``33 CFR 
154.2105, 154.2108(b), 154.2109, 154.2110, 154.2111, and 154.2204, or 
46 CFR 39.4003, and each flame arrester required by 33 CFR 154.2103, 
154.2105(j), and 154.2203'';
0
c. In paragraph (g)(4) introductory text, remove the words ``Sec.  
154.820(a) and Sec.  154.824(d) and (e) of this chapter or 46 CFR 
39.40-3(a)'' and add, in their place, the words ``33 CFR 154.2105(a) 
and (j), 154.2107(d) and (e), and 154.2110 or 46 CFR 39.4003''; and
0
d. Add paragraph (i) to read as follows:

Sec.  156.170  Equipment tests and inspections.

* * * * *
    (i) Notwithstanding the general provisions of 33 CFR 156.107(a) 
relating to the authority of the Captain of the Port to approve 
alternatives, the owner or operator may request the written approval of 
the Commandant (CG-ENG), U.S. Coast Guard, 2100 2nd St. SW., Stop 7126, 
Washington, DC 20593-7126, for alternative methods of compliance to the 
testing and inspection requirements of paragraph (g)(3) of this 
section. The Commandant (CG-ENG) will grant that written approval upon 
determination that the alternative methods provide an equivalent level 
of safety and protection from fire, explosion, and detonation. Criteria 
to consider when evaluating requests for alternative methods may 
include, but are not limited to: operating and inspection history, type 
of equipment, new technology, and site-specific conditions that support 
the requested alternative.
* * * * *

Title 46--Shipping

PART 35--OPERATIONS

0
17. The authority citation for part 35 is revised to read as follows:

    Authority: 33 U.S.C. 1225, 1231, 1321(j); 46 U.S.C. 3306, 3703, 
6101; 49 U.S.C. 5103, 5106; E.O. 12234, 45 FR 58801, 3 CFR, 1980 
Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; 
Department of Homeland Security Delegation No. 0170.1.

0
18. Add Sec.  35.35-4 to read as follows:

Sec.  35.35-4  Insulating flange joint or nonconductive hose--TB/ALL.

    (a) A vessel's cargo hose string or vapor recovery hose must use an 
insulating flange or one continuous length of nonconductive hose 
between the vessel and the shore transfer facility. For each vapor 
recovery hose or cargo hose string, only one insulating flange or non-
conductive hose must be provided. See 33 CFR 154.2101(g).
    (b) The insulating flange must be inserted at the jetty end and 
take all reasonable measures to ensure the connection will not be 
disturbed. The hose must be suspended to ensure the hose-to-hose 
connection flanges do not rest on the jetty deck or other structure 
that may render the insulating flange

[[Page 42642]]

ineffective or short circuited by contact with external metal or 
through the hose handling equipment.
    (c) The insulating flange must be inspected and tested at least 
annually, or more frequently if necessary due to deterioration caused 
by environmental exposure, usage, and damage from handling. After 
installation, the insulation reading between the metal pipe on the 
shore side of the flange and the end of the hose or metal arm when 
freely suspended must not be less than 1,000 ohms. A suitable DC 
insulation tester must be used.

0
19. Revise Sec.  35.35-5 to read as follows:

Sec.  35.35-5  Electrical bonding--TB/ALL.

    The use of a vessel/shore bonding cable or wire is permissible only 
if operationally necessary and only in compliance with the requirements 
of paragraphs (a) and (b) of this section.
    (a) A switch on the jetty that is in series with the bonding cable 
must be provided. The switch must be listed or certified by a Coast 
Guard accepted independent laboratory and approved for use in a Class I 
Zone 1 or Class I, Division 1 location, and the appropriate Gas Group 
of the cargo authorized for the vessel.
    (b) The connection point for the bonding cable system must be at 
least 20 feet from the cargo manifold area, the cargo hose string, or 
the vapor recovery connection. The switch must be in the off position 
before connecting or disconnecting the bonding cable. The bonding cable 
must be attached before the cargo hoses or arms, or the vapor recovery 
connections are connected. The bonding cable must be removed only after 
the cargo hoses or arms, or the vapor recovery connections have been 
disconnected.

0
20. In Sec.  35.35-20--
0
a. In paragraph (m) introductory text, after the words ``collection of 
cargo vapor'', add the words ``to or'';
0
b. In paragraph (m)(1), after the words ``vapor to flow to'', add the 
words ``or from''; and
0
c. Revise paragraph (m)(9) to read as follows:

Sec.  35.35-20  Inspection before transfer of cargo--TB/ALL.

* * * * *
    (m) * * *
    (9) The oxygen content in the vapor space of each of the vessel's 
inerted cargo tanks connected to the vapor collection system is--
    (i) At or below 60 percent by volume of the cargo's minimum oxygen 
concentration for combustion at the start of cargo transfer; or
    (ii) At or below 8 percent by volume, at the start of cargo 
transfer, for vapor of crude oil, gasoline blends, or benzene.

0
21. In Sec.  35.35-30--
0
a. In paragraph (c) introductory text, after the words ``collection of 
cargo vapor'', add the words ``to or'';
0
b. In paragraph (c)(1), after the words ``vapor to flow to'', add the 
words ``or from''; and
0
c. Revise paragraph (c)(8) to read as follows:

Sec.  35.35-30  ``Decaration of Inspection'' for tank vessels---TB/ALL.

* * * * *
    (c) * * *
    (8) Has the oxygen content in the vapor space of each of the 
vessel's inerted cargo tanks connected to the vapor collection system 
been verified to be--
    (i) At or below 60 percent by volume, at the start of cargo 
transfer, of the cargo's minimum oxygen concentration for combustion; 
or
    (ii) At or below 8 percent by volume, at the start of cargo 
transfer, for vapor of crude oil, gasoline blends, or benzene.

0
22. Revise part 39 to read as follows:

PART 39--VAPOR CONTROL SYSTEMS

Subpart 39.1000--General
Sec.
39.1001 Applicability--TB/ALL.
39.1003 Definitions--TB/ALL.
39.1005 Incorporation by reference--TB/ALL.
39.1009 Additional tank vessel vapor processing unit requirements--
TB/ALL.
39.1011 Personnel training requirements--TB/ALL.
39.1013 U.S.-flagged tank vessel certification procedures for vapor 
control system designs--TB/ALL.
39.1015 Foreign-flagged tank vessel certification procedures for 
vapor control system designs--TB/ALL.
39.1017 Additional certification procedures for a tank barge vapor 
collection system design--B/ALL.
Subpart 39.2000--Equipment and Installation
39.2001 Vapor collection system--TB/ALL.
39.2003 Cargo gauging system--TB/ALL.
39.2007 Tankship liquid overfill protection--T/ALL.
39.2009 Tank barge liquid overfill protection--B/ALL.
39.2011 Vapor overpressure and vacuum protection--TB/ALL.
39.2013 High and low vapor pressure protection for tankships--T/ALL.
39.2014 Polymerizing cargoes safety--TB/ALL.
39.2015 Tank barge pressure-vacuum indicating devices--B/ALL.
Subpart 39.3000--Vapor Collection Operations During Cargo Transfer
39.3001 Operational requirements for vapor control systems during 
cargo transfer--TB/ALL.
Subpart 39.4000--Vessel-to-Vessel Transfers Using Vapor Balancing
39.4001 General requirements for vapor balancing--TB/ALL.
39.4003 Design and equipment for vapor balancing--TB/ALL.
39.4005 Operational requirements for vapor balancing--TB/ALL.
Subpart 39.5000--Multi-breasted Loading Using a Single Facility Vapor 
Connection
39.5001 General requirements for multi-breasted loading--B/CLBR.
39.5003 Additional requirements for multi-breasted loading using 
inboard barge vapor collection system--B/CLBR.
39.5005 Additional requirements for multi-breasted loading using a 
``dummy'' vapor header--B/CLBR.
Subpart 39.6000--Tank Barge Cleaning Operations with Vapor Collection
39.6001 Design and equipment of vapor collection and stripping 
systems--B/ALL.
39.6003 Overpressure and underpressure protection during stripping 
and gas-freeing operations--B/ALL.
39.6005 Inspection prior to conducting gas-freeing operations--B/
ALL.
39.6007 Operational requirements for tank barge cleaning--B/ALL.
39.6009 Barge person in charge: Designation and qualifications--B/
ALL.

    Authority:  33 U.S.C. 1225, 1231; 42 U.S.C. 7511b(f)(2); 46 
U.S.C. 3306, 3703, 3715(b); E.O. 12234, 45 FR 58801, 3 CFR, 1980 
Comp., p. 277; Department of Homeland Security Delegation No. 
0170.1.

Subpart 39.1000--General

Sec.  39.1001  Applicability--TB/ALL.

    (a) This part applies to tank vessels that use a vapor control 
system (VCS) to collect vapors emitted to or from a vessel's cargo 
tanks while operating in the navigable waters of the United States, 
except--
    (1) Tank vessels with an operating vapor collection system approved 
by the Coast Guard prior to July 23, 1990, for the collection and 
transfer of cargo vapor to specific facilities. Such tank vessels are 
only subject to 46 CFR 39.1013, 39.3001, and 39.4005; and
    (2) A tank barge that collects vapors emitted from its cargo tanks 
during gas-freeing or cleaning operations at a cleaning facility. This 
type of tank barge is only subject to 46 CFR part 39, subparts 39.1000 
and 39.6000, and must comply with requirements of these two subparts at 
the time of its next inspection for certification required by 46 CFR 
31.10-15, but no later than August 15, 2018.

[[Page 42643]]

    (b) This part does not apply to the collection of vapors of 
liquefied flammable gases as defined in 46 CFR 30.10-39.
    (c) In this part, regulatory measurements, whether in the metric or 
English system, are sometimes followed by approximate equivalent 
measurements in parentheses, which are given solely for the reader's 
convenience. Regulatory compliance with the regulatory measurement is 
required.

Sec.  39.1003  Definitions--TB/ALL.

    As used in this part only:
    Barge vapor connection means the point in a barge's piping system 
where it connects to a vapor collection hose or arm. This may be the 
same as the barge's cargo connection while controlling vapors during 
tank barge cargo tank-cleaning operations.
    Cargo deck area means that part of the weather deck that is 
directly over the cargo tanks.
    Cargo tank venting system means the venting system required by 46 
CFR 32.55.
    Certifying entity means a certifying entity accepted by the Coast 
Guard as such pursuant to 33 CFR part 154, subpart P.
    Cleaning facility means a facility used or capable of being used to 
conduct cleaning operations on a tank barge.
    Cleaning operation means any stripping, gas-freeing, or tank-
washing operation of a barge's cargo tanks conducted at a cleaning 
facility.
    Commandant means the Commandant (CG-ENG), U.S. Coast Guard, 2100 
2nd St. SW., Stop 7126, Washington, DC 20593-7126.
    Facility vapor connection means the point in a facility's fixed 
vapor collection system where the system connects with the vapor 
collection hose or the base of the vapor collection arm.
    Fixed stripping line means a pipe extending to the low point of 
each cargo tank, which is welded through the deck and terminated above 
deck with a valve, and plugged at the open end.
    Flammable liquid means a liquid as defined in 46 CFR 30.10-22.
    Fluid displacement system means a system that removes vapors from a 
barge's cargo tanks during gas freeing through the addition of an inert 
gas or other medium into the cargo tank.
    Fluid injection connection means the point in a fluid displacement 
system at which the fixed piping or hose that supplies the inert gas or 
other medium connects to a barge's cargo tanks or fixed piping system.
    Gas freeing means the removal of vapors from a tank barge.
    Independent as applied to two systems means that one system will 
operate when there is a failure of any part of the other system.
    Inerted means the oxygen content of the vapor space in a cargo tank 
is reduced in accordance with the inert gas requirements of 46 CFR 
32.53 or 33 CFR 153.500. If a cargo vapor in a cargo tank that is 
connected to the vapor collection system is defined as inerted at the 
start of cargo transfer, the oxygen content in the vapor space of the 
cargo tank must not exceed 60 percent by volume of the cargo's minimum 
oxygen concentration for combustion, or 8 percent by volume for vapor 
of crude oil, gasoline blends, or benzene.
    Marine Safety Center (MSC) means the Commanding Officer, U.S. Coast 
Guard Marine Safety Center, 2100 2nd Street SW., Stop 7102, Washington, 
DC 20593-7102.
    Maximum allowable gas-freeing rate means the maximum volumetric 
rate at which a barge may be gas-freed during cleaning operations.
    Maximum allowable stripping rate means the maximum volumetric rate 
at which a barge may be stripped during cleaning operations prior to 
the opening of any hatch and/or fitting on the cargo tank being 
stripped.
    Maximum allowable transfer rate means the maximum volumetric rate 
at which a vessel may receive cargo or ballast.
    Minimum oxygen concentration for combustion (MOCC) means the lowest 
level of oxygen in a vapor or vapor mixture that will support 
combustion.
    New vapor collection system means a vapor collection system that is 
not an existing vapor collection system.
    Service vessel means a vessel that transports bulk liquid cargo 
between a facility and another vessel.
    Set pressure means the pressure at which the pressure or vacuum 
valve begins to open and the flow starts through the valve.
    Stripping means the removal, to the maximum extent practicable, of 
cargo residue remaining in the barge's cargo tanks and associated fixed 
piping system after cargo transfer or during cleaning operations.
    Vacuum displacement system means a system that removes vapors from 
a barge's cargo tanks during gas-freeing by sweeping air through the 
cargo tank hatch openings.
    Vapor balancing means the transfer of vapor displaced by incoming 
cargo from the tank of a vessel or facility receiving cargo into a tank 
of the vessel or facility delivering cargo via a vapor collection 
system.
    Vapor collection system means an arrangement of piping and hoses 
used to collect vapor emitted to or from a vessel's cargo tanks and to 
transport the vapor to a vapor processing unit or a tank.
    Vapor control system (VCS) means an arrangement of piping and 
equipment used to control vapor emissions collected to or from a 
vessel. It includes the vapor collection system and vapor processing 
unit or a tank.
    Vapor processing unit means the components of a VCS that recover, 
destroy, or disperse vapor collected from a vessel.
    Vessel-to-vessel transfer (direct or through a shore loop) means 
either--
    (1) The transfer of a bulk liquid cargo from a tank vessel to a 
service vessel; or
    (2) The transfer of a bulk liquid cargo from a service vessel to 
another vessel in order to load the receiving vessel to a deeper draft.
    Vessel vapor connection means the point in a vessel's fixed vapor 
collection system where the system connects with the vapor collection 
hose or arm.

Sec.  39.1005  Incorporation by reference--TB/ALL.

    (a) Certain material is incorporated by reference (IBR) into this 
part with the approval of the Director of the Federal Register under 5 
U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that 
specified in this section, the Coast Guard must publish notice of 
change in the Federal Register and the material must be available to 
the public. All approved material is available for inspection at the 
Coast Guard, Office of Design and Engineering Standards (CG-ENG) 2100 
2nd Street SW., Stop 7126, Washington, DC 20593-7126, telephone 202-
372-1418 and at the National Archives and Records Administration 
(NARA). For information on the availability of this material at NARA, 
call 202-741-6030 or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Also, it is 
available from the sources indicated in this section.
    (b) American National Standards Institute (ANSI), 25 West 43rd 
Street, 4th floor, New York, NY 10036.
    (1) ANSI B16.5, Steel Pipe Flanges and Flanged Fittings, 1981, IBR 
approved for Sec. Sec.  39.2001(i) and 39.6001(k).
    (2) [Reserved]
    (c) American Petroleum Institute (API), 1220 L Street NW., 
Washington, DC 20005.
    (1) API Standard 2000, Venting Atmospheric and Low-Pressure Storage 
Tanks (Non-refrigerated and

[[Page 42644]]

Refrigerated), Third Edition, January 1982 (reaffirmed December 
1987)(``API 2000''), IBR approved for Sec.  39.2011(b).
    (2) [Reserved]
    (d) ASTM International (ASTM), 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959.
    (1) ASTM F1122-87 (Reapproved1992)--Standard Specification for 
Quick Disconnect Couplings (``ASTM F1122''), IBR approved for Sec.  
39.2001(k).
    (2) ASTM F1271--Standard Specification for Spill Valves for Use in 
Marine Tank Liquid Overpressure Protection Applications (``ASTM 
F1271''), December 29, 1989, IBR approved for Sec.  39.2009(a).
    (e) International Electrotechnical Commission (IEC), Bureau Central 
de la Commission Electrotechnique Internationale, 3, rue de 
Varemb[eacute], P.O. Box 131, CH--1211 Geneva 20, Switzerland.
    (1) IEC 60309-1 Plugs, Socket-Outlets and Couplers for Industrial 
Purposes--Part 1: General Requirements, Edition 4.2 2012-06, IBR 
approved for Sec.  39.2009(a).
    (2) IEC 60309-2 Plugs, Socket-Outlets and Couplers for Industrial 
Purposes--Part 2: Dimensional Interchangeability Requirements for Pin 
and Contact-tube Accessories, Edition 4.2 2012-05, IBR approved for 
Sec.  39.2009(a).
    (f) International Maritime Organization (IMO), 4 Albert Embankment, 
London SE1 7SR, United Kingdom.
    (1) International Convention for the Safety of Life at Sea, 
Consolidated Text of the 1974 SOLAS Convention, the 1978 SOLAS 
Protocol, the 1981 and 1983 SOLAS Amendments (1986) (``SOLAS''), IBR 
approved for Sec.  39.2001(e).
    (2) [Reserved]
    (g) National Electrical Manufacturers Association (NEMA), 1300 
North 17th Street, Suite 1752, Rosslyn, VA 22209.
    (1) ANSI NEMA WD-6--Wiring Devices, Dimensional Requirements, 1988 
(``NEMA WD-6''), IBR approved for Sec.  39.2009(a)
    (2) [Reserved]
    (h) National Fire Protection Association (NFPA), 1 Batterymarch 
Park, Quincy, MA 02169-7471.
    (1) NFPA 70--National Electrical Code, 2011, IBR approved for Sec.  
39.2009(a).
    (2) [Reserved]
    (i) Oil Companies International Marine Forum (OCIMF), 29 Queen 
Anne's Gate, London SWIH 9BU, England.
    (1) International Safety Guide for Oil Tankers and Terminals, Fifth 
Edition, 2006 (``ISGOTT''), IBR approved for Sec. Sec.  39.3001(g), 
39.5001(c), 39.6001(g), and 39.6005(a).
    (2) [Reserved]

Sec.  39.1009  Additional tank vessel vapor processing unit 
requirements--TB/ALL.

    (a) Vapor piping, fitting, valves, flanges, and pressure vessels 
comprising the construction and installation of a permanent or portable 
vapor processing unit onboard a tank vessel must meet the marine 
engineering requirements of 46 CFR chapter I, subchapter F.
    (b) Electrical equipment comprising the construction and 
installation of a permanent or portable vapor processing unit onboard a 
tank vessel must meet the electrical engineering requirements of 46 CFR 
chapter I, subchapter J.
    (c) In addition to complying with the rules of this part, tank 
vessels with a permanent or portable vapor processing unit must comply 
with applicable requirements of 33 CFR part 154, subpart P.
    (d) When differences between the requirements for vessels contained 
in 46 CFR chapter I, subchapters F and J and requirements for 
facilities contained in 33 CFR part 154, subpart P need to be resolved, 
the requirements of 46 CFR chapter I, subchapters F and J apply, unless 
specifically authorized by the Marine Safety Center.

Sec.  39.1011  Personnel training requirements--TB/ALL.

    Personnel responsible for operating the vapor control system (VCS) 
must complete a training program prior to the operation of the system 
installed onboard the tank vessel. As part of the training program, 
personnel must be able to demonstrate, through drills and practical 
knowledge, the proper VCS operation procedures for normal and emergency 
conditions. The training program must cover the following subjects:
    (a) Purpose of a VCS;
    (b) Principles of the VCS;
    (c) Components of the VCS;
    (d) Hazards associated with the VCS;
    (e) Coast Guard regulations in this part;
    (f) Vapor control operation procedures during cargo transfer or 
tank barge cleaning, including:
    (1) Testing and inspection requirements;
    (2) Pre-transfer or pre-cleaning procedures;
    (3) Connection sequence;
    (4) Startup procedures; and
    (5) Normal operations; and
    (g) Emergency procedures.

Sec.  39.1013  U.S.-flagged tank vessel certification procedures for 
vapor control system designs--TB/ALL.

    (a) For an existing Coast Guard-approved vapor control system (VCS) 
that has been operating before July 23, 1990, the tank vessel owner or 
operator must submit detailed engineering drawings, calculations, and 
specifications to the Marine Safety Center (MSC) for review and 
approval before modifying the system or transferring vapor to a 
facility that was not approved by the Coast Guard for that kind of 
vapor transfer.
    (b) For a Coast Guard-approved vessel VCS that began operating on 
or after July 23, 1990, the tank vessel owner or operator must submit 
plans, calculations, and specifications to the MSC for review and 
approval before modifying the system.
    (c) A tank vessel owner or operator must submit plans, 
calculations, and specifications for a new tank vessel VCS to the MSC 
for review and approval before installing the system. A permanent or 
portable vapor processing unit onboard a tank vessel will be reviewed, 
together with the tank vessel, as a complete and integrated system.
    (d) Once the plan review and inspection of the tank vessel VCS 
satisfy the requirements of this part, the Officer in Charge, Marine 
Inspection (OCMI) will endorse the Certificate of Inspection for the 
U.S.-flagged tank vessel.

Sec.  39.1015  Foreign-flagged tank vessel certification procedures for 
vapor control system designs--TB/ALL.

    As an alternative to meeting the requirements in 33 CFR 39.1013(a), 
(b), and (c), the owner or operator of a foreign-flagged tank vessel 
may submit certification by the classification society that classifies 
vessels under their foreign flags to the Marine Safety Center. Upon 
receipt of the certification stating that the vapor control system 
(VCS) meets the requirements of this part, the Officer in Charge, 
Marine Inspection (OCMI) will endorse the vessel's Certificate of 
Compliance for foreign-flagged tank vessels.

Sec.  39.1017  Additional certification procedures for a tank barge 
vapor collection system design--B/ALL.

    (a) For a tank barge vapor collection system intended for operation 
in multi-breasted loading using a single facility vapor connection, the 
tank barge owner or operator must submit plans, calculations, and 
specifications to the Marine Safety Center (MSC) for review and 
approval before beginning a multi-breasted loading operation.

[[Page 42645]]

    (b) For a tank barge intended for collecting vapors emitted from 
its cargo tanks during gas-freeing or cleaning operations at a cleaning 
facility, the barge owner or operator must submit the following items 
to the MSC for review and approval:
    (1) Stripping system plans and specifications, except those 
approved by the MSC on or before the August 15, 2013; and
    (2) Stripping and/or gas-freeing rate calculations, except those 
approved by the MSC on or before the August 15, 2013.
    (c) Once the vapor collection system satisfies the requirements of 
this part, the Officer in Charge, Marine Inspection (OCMI) will endorse 
the Certificate of Inspection that the tank barge is acceptable for 
collecting vapors during cleaning operations.

Subpart 39.2000--Equipment and Installation

Sec.  39.2001  Vapor collection system--TB/ALL.

    (a) Vapor collection piping must be fixed piping and the vessel's 
vapor connection must be located as close as practicable to the loading 
manifold, except--
    (1) As allowed by the Commandant; and
    (2) A vessel certificated to carry cargo listed in 46 CFR, part 
151, Table 151.05 or part 153, Table 1 may use flexible hoses no longer 
than three meters (9.84 feet) for interconnection between fixed piping 
onboard the vessel to preserve segregation of cargo systems. These 
flexible hoses must also meet the requirements in paragraph (i) of this 
section, excluding paragraph (i)(5), and meet the following additional 
requirements:
    (i) The installation of flexible hoses must include an isolation 
valve mounted on the tank side of the connection; and
    (ii) Hose connections permitted under paragraph (a)(2) of this 
section are exempt from the requirements of paragraph (h) of this 
section.
    (b) When collecting incompatible vapors simultaneously, vapors must 
be kept separate throughout the entire vapor collection system.
    (c) Vapor collection piping must be electrically bonded to the hull 
and must be electrically continuous.
    (d) The vapor collection system must have a mechanism to eliminate 
liquid condensation, such as draining and collecting liquid from each 
low point in the line.
    (e) For a tankship that has an inert gas system, a mechanism must 
be in place to isolate the inert gas supply from the vapor control 
system (VCS). The inert gas main isolation valve required by chapter 
II-2, Regulation 62.10.8 of SOLAS (incorporated by reference, see 46 
CFR 39.1005), may be used to satisfy this requirement.
    (f) The vapor collection system must not interfere with the proper 
operation of the cargo tank venting system.
    (g) The tank vessel owner or operator must install an isolation 
valve capable of manual operation. It must be located at the vessel 
vapor connection and must clearly show whether the valve is in the open 
or closed position via an indicator, valve handle, or valve stem.
    (h) The last 1.0 meter (3.3 feet) of vapor piping upstream of the 
vessel vapor connection and each end of a vapor hose must be--
    (1) Painted in the sequence of red/yellow/red. The width of the red 
bands must be 0.1 meter (0.33 foot) and the width of the middle yellow 
band must be 0.8 meter (2.64 feet); and
    (2) Labeled with the word ``VAPOR'' painted in black letters at 
least 50.8 millimeters (2 inches) high.
    (i) Hoses that transfer vapors must meet the following 
requirements:
    (1) Have a design burst pressure of at least 25 pounds per square 
inch gauge (psig);
    (2) Have a maximum allowable working pressure no less than 5 psig;
    (3) Be capable of withstanding at least a 2.0 pounds per square 
inch (psi) vacuum without collapsing or constricting;
    (4) Be electrically continuous with a maximum resistance of 10,000 
ohms;
    (5) Have flanges with--
    (i) A bolthole arrangement complying with the requirements for 150 
pound class ANSI B16.5 flanges (incorporated by reference, see 46 CFR 
39.1005); and
    (ii) One or more 15.9 millimeter (0.625 inch) diameter hole(s) 
located midway between boltholes and in line with the bolthole pattern; 
and
    (6) Be abrasion and kinking resistant.
    (j) Each vessel vapor connection flange face must have a permanent 
stud projecting outward that has a 12.7 millimeter (0.5 inch) diameter 
and is at least 25.4 millimeters (1 inch) long. It must be located at 
the top of the flange face, midway between boltholes, and in line with 
the bolthole pattern.
    (k) Quick disconnect couplings (QDCs) may be used instead of 
flanges at the flexible hose connection and fixed piping on tankships 
provided they meet ASTM F1122 (incorporated by reference, see 46 CFR 
39.1005) and are designed as ``Standard Class QDC.''
    (l) Hose saddles that provide adequate support to prevent kinking 
or collapse of hoses must accompany vapor hose handling equipment.
    (m) For cargoes that have toxic properties, listed in 46 CFR Table 
151.05 with the ``Special requirements'' column referring to 46 CFR 
151.50-5, an overfill alarm and shutdown system that meet the 
requirements of 46 CFR 39.2007(a), 39.2009(a), or 39.2009(b) must be 
used for primary overfill protection. If the vessel is also equipped 
with spill valves or rupture disks, their setpoints must be set higher 
than the vessel's pressure relief valve setting as required by 46 CFR 
39.2009(a)(3).

Sec.  39.2003  Cargo gauging system--TB/ALL.

    (a) A cargo tank of the tank vessel connected to a vapor collection 
system must be equipped with a permanent or portable cargo gauging 
device that--
    (1) Is a closed type as defined in 46 CFR 151.15.10(c) that does 
not require opening the tank to the atmosphere during cargo transfer;
    (2) Allows the operator to determine the level of liquid in the 
tank for the full range of liquid levels in the tank;
    (3) Has an indicator for the level of liquid in the tank that is 
located where cargo transfer is controlled; and
    (4) If portable, is installed on the tank during the entire 
transfer operation.
    (b) Each cargo tank of a tank barge must have a high-level 
indicating device, unless the barge complies with 46 CFR 39.2009(a). 
The high-level indicating device must--
    (1) Indicate visually the level of liquid in the cargo tank when 
the liquid level is within a range of 1 meter (3.28 feet) of the top of 
the tank;
    (2) Show a permanent mark to indicate the maximum liquid level 
permitted under 46 CFR 39.3001(e) at even keel conditions; and
    (3) Be visible from all cargo control areas.

Sec.  39.2007  Tankship liquid overfill protection--T/ALL.

    (a) Each cargo tank of a tankship must be equipped with an 
intrinsically safe high-level alarm and a tank overfill alarm.
    (b) If installed after July 23, 1990, the high-level alarm and tank 
overfill alarm required by paragraph (a) of this section must--
    (1) Be independent of each other;
    (2) Activate an alarm in the event of loss of power to the alarm 
system;
    (3) Activate an alarm during the failure of electrical circuitry to 
the tank level sensor; and
    (4) Be able to be verified at the tank for proper operation prior 
to each transfer. This procedure may be achieved with the use of an 
electronic

[[Page 42646]]

self-testing feature that monitors the condition of the alarm circuitry 
and sensor.
    (c) The high-level alarm required by paragraph (a) of this section 
must--
    (1) Activate an alarm once the cargo level reaches 95 percent of 
the tank capacity or higher, but before the tank overfill alarm;
    (2) Be identified with the legend ``High-level Alarm'' in black 
letters at least 50.8 millimeters (2 inches) high on a white 
background; and
    (3) Activate a visible and audible alarm so that it can be seen and 
heard on the vessel where cargo transfer is controlled.
    (d) The tank overfill alarm required by paragraph (a) of this 
section must--
    (1) Be independent of the cargo gauging system;
    (2) Be identified with the legend ``TANK OVERFILL ALARM'' in black 
letters at least 50.8 millimeters (2 inches) high on a white 
background;
    (3) Activate a visible and audible alarm so that it can be seen and 
heard on the vessel where cargo transfer is controlled and in the cargo 
deck area; and
    (4) Activate an alarm early enough to allow the person in charge of 
transfer operations to stop the cargo transfer before the tank 
overflows.
    (e) If a spill valve is installed on a cargo tank fitted with a 
vapor collection system, it must meet the requirements of 46 CFR 
39.2009(c).
    (f) If a rupture disk is installed on a cargo tank fitted with a 
vapor collection system, it must meet the requirements of 46 CFR 
39.2009(d).

Sec.  39.2009  Tank barge liquid overfill protection--B/ALL.

    (a) Each cargo tank of a tank barge must have one of the following 
liquid overfill protection arrangements:
    (1) A system meeting the requirements of 46 CFR 39.2007 that--
    (i) Includes a self-contained power supply;
    (ii) Is powered by generators on the barge; or
    (iii) Receives power from a facility and is fitted with a shore tie 
cable and a 120-volt, 20-ampere explosion-proof plug that meets--
    (A) ANSI NEMA WD-6 (incorporated by reference, see 46 CFR 39.1005);
    (B) NFPA 70, Articles 406.9 and 501-145 (incorporated by reference, 
see 46 CFR 39.1005); and
    (C) 46 CFR 111.105-9;
    (2) An intrinsically safe overfill control system that--
    (i) Is independent of the cargo-gauging device required by 46 CFR 
39.2003(a);
    (ii) Activates an alarm and automatic shutdown system at the 
facility overfill control panel 60 seconds before the tank is 100 
percent liquid-full during a facility-to-vessel cargo transfer;
    (iii) Activates an alarm and automatic shutdown system on the 
vessel discharging cargo 60 seconds before the tank is 100 percent 
liquid-full during a vessel-to-vessel cargo transfer;
    (iv) Can be inspected at the tank for proper operation prior to 
each loading;
    (v) Consists of components that, individually or in series, will 
not generate or store a total of more than 1.2 volts (V), 0.1 amperes 
(A), 25 megawatts (MW), or 20 microJoules ([mu]J);
    (vi) Has at least one tank overfill sensor switch per cargo tank 
that is designed to activate an alarm when its normally closed contacts 
are open;
    (vii) Has all tank overfill sensor switches connected in series;
    (viii) Has interconnecting cabling that meets 46 CFR 111.105-11(b) 
and (d), and 46 CFR 111.105-17(a); and
    (ix) Has a male plug with a five-wire, 16-A connector body meeting 
IEC 60309-1 and IEC 60309-2 (both incorporated by reference, see 46 CFR 
39.1005), that is--
    (A) Configured with pins S2 and R1 for the tank overfill sensor 
circuit, pin G connected to the cabling shield, and pins N and T3 
reserved for an optional high-level alarm circuit meeting the 
requirements of this paragraph; and
    (B) Labeled ``Connector for Barge Overflow Control System'' and 
labeled with the total inductance and capacitance of the connected 
switches and cabling;
    (3) A spill valve that meets ASTM F1271 requirements (incorporated 
by reference, see 46 CFR 39.1005), and--
    (i) Relieves at a predetermined pressure higher than the pressure 
at which the pressure relief valves meeting the requirements of 46 CFR 
39.2011 operate;
    (ii) Limits the maximum pressure at the top of the cargo tank 
during liquid overfill to not more than the maximum design working 
pressure for the tank when at the maximum loading rate for the tank; 
and
    (iii) Has a means to prevent opening due to cargo sloshing while 
the vessel is in ocean or coastwise service; or
    (4) A rupture disk arrangement that meets paragraphs (a)(3)(i), 
(ii), and (iii) of this section and is approved by the Commandant.
    (b) A tank barge authorized to carry a cargo having toxic 
properties, meaning they are listed in 46 CFR Table 151.05 with the 
``Special requirements'' column referring to 46 CFR 151.50-5, must 
comply with the requirements of 46 CFR 39.2001(m).

Sec.  39.2011  Vapor overpressure and vacuum protection--TB/ALL.

    (a) The cargo tank venting system required by 46 CFR 32.55 must--
    (1) Be capable of discharging cargo vapor at the maximum transfer 
rate plus the vapor growth for the cargo such that the pressure in the 
vapor space of each tank connected to the vapor control system (VCS) 
does not exceed--
    (i) The maximum design working pressure for the tank; or
    (ii) If a spill valve or rupture disk is fitted, the pressure at 
which the device operates;
    (2) Relieve at a pressure corresponding to a pressure in the cargo 
tank vapor space not less than 1.0 pounds per square inch gauge (psig);
    (3) Prevent a vacuum, which generates in any tank connected to the 
vapor collection system during the withdrawal of cargo or vapor at 
maximum rates, in a cargo tank vapor space from exceeding the maximum 
design vacuum; and
    (4) Not relieve at a vacuum corresponding to a vacuum in the cargo 
tank vapor space between 14.7 pounds per square inch absolute (psia) (0 
psig) and 14.2 psia (-0.5 psig).
    (b) Each pressure-vacuum relief valve must--
    (1) Be of a type approved under 46 CFR 162.017, for the pressure 
and vacuum relief setting desired;
    (2) Be tested for venting capacity in accordance with paragraph 
1.5.1.3 of API 2000 (incorporated by reference, see 46 CFR 39.1005). 
The test must be carried out with a flame screen fitted at the vacuum 
relief opening and at the discharge opening if the pressure-vacuum 
relief valve is not designed to ensure a minimum vapor discharge 
velocity of 30 meters (98.4 feet) per second; and
    (3) If installed after July 23, 1991, have a mechanism to check 
that it operates freely and does not remain in the open position.
    (c) A liquid filled pressure-vacuum breaker may be used for vapor 
overpressure and vacuum protection if the vessel owner or operator 
obtains the prior written approval of the Commandant.
    (d) Vapor growth must be calculated following the Marine Safety 
Center guidelines available in Coast Guard VCS guidance at http://homeport.uscg.mil, or as specifically approved in writing by the 
Commandant after consultation with the Marine Safety Center.

Sec.  39.2013  High and low vapor pressure protection for tankships--T/
ALL.

    Each tankship with a vapor collection system must be fitted with a 
pressure-

[[Page 42647]]

sensing device, located as close as practicable to the vessel vapor 
connection, that measures the pressure in the main vapor collection 
line, which--
    (a) Has a pressure indicator located on the tankship where the 
cargo transfer is controlled; and
    (b) Has a high-pressure and a low-pressure alarm that--
    (1) Gives an audible and a visible warning on the vessel where the 
cargo transfer is controlled;
    (2) Activates an alarm when the pressure-sensing device measures a 
high pressure of not more than 90 percent of the lowest pressure relief 
valve setting in the cargo tank venting system; and
    (3) Activates an alarm when the pressure-sensing device measures a 
low pressure of not less than 0.144 pounds per square inch gauge (psig) 
for an inerted tankship, or the lowest vacuum relief valve setting in 
the cargo tank venting system for a non-inerted tankship.

Sec.  39.2014  Polymerizing cargoes safety--TB/ALL.

    (a) Common vapor headers for polymerizing cargoes must be 
constructed with adequate means to permit internal examination of vent 
headers.
    (b) Vapor piping systems and pressure-vacuum valves that are used 
for polymerizing cargoes must be inspected internally at least 
annually.
    (c) Pressure-vacuum valves and spill valves which are used for 
polymerizing cargoes must be tested for proper movement prior to each 
transfer.

Sec.  39.2015  Tank barge pressure-vacuum indicating device--B/ALL.

    A fixed pressure-sensing device must be installed as close as 
practicable to the vessel vapor connection on a tank barge with a vapor 
collection system. The pressure-sensing device must measure the 
pressure vacuum in the main vapor collection line and have a pressure 
indicator located where the cargo transfer is controlled.

Subpart 39.3000--Vapor Collection Operations During Cargo Transfer

Sec.  39.3001  Operational requirements for vapor control systems 
during cargo transfer--TB/ALL.

    (a) Vapor from a tank vessel may not be transferred to a facility 
in the United States, or vapor from a facility storage tank may not be 
transferred to a tank vessel, unless the facility's marine vapor 
control system (VCS) is certified by a certifying entity as meeting the 
requirements of 33 CFR part 154, subpart P and the facility's facility 
operations manual is marked by the local Coast Guard Captain of the 
Port (COTP) as required by 33 CFR 154.325(d).
    (b) Vapor from a tank vessel may not be transferred to a vessel 
that does not have its certificate of inspection or certificate of 
compliance endorsed as meeting the requirements of this part and for 
controlling vapor of the cargo being transferred.
    (c) For each cargo transferred using a vapor collection system, the 
pressure drop through the vapor collection system from the most remote 
cargo tank to the vessel vapor connection, including vapor hoses if 
used by the vessel, must be--
    (1) Calculated at the maximum transfer rate and at lesser transfer 
rates;
    (2) Calculated using a density estimate for the cargo vapor and air 
mixture, or vapor and inert gas mixture, based on a partial pressure 
(partial molar volumes) method for the mixture, assuming ideal gas law 
conditions;
    (3) Calculated using a vapor growth rate as stated in 46 CFR 
39.2011(d) for the cargo being transferred; and
    (4) Included in the vessel's transfer procedures as a table or 
graph, showing the liquid transfer rate versus the pressure drop.
    (d) The rate of cargo transfer must not exceed the maximum 
allowable transfer rate as determined by the lesser of the following:
    (1) Eighty percent of the total venting capacity of the pressure 
relief valves in the cargo tank venting system when relieving at the 
set pressure.
    (2) The total vacuum relieving capacity of the vacuum relief valves 
in the cargo tank venting system when relieving at the set pressure.
    (3) For a given pressure at the facility vapor connection, or if 
vessel-to-vessel transfer at the vapor connection of the service 
vessel, then the rate based on pressure drop calculations at which the 
pressure in any cargo tank connected to the vapor collection system 
exceeds 80 percent of the setting of any pressure relief valve in the 
cargo tank venting system.
    (e) Cargo tanks must not be filled higher than--
    (1) 98.5 percent of the cargo tank volume; or
    (2) The level at which an overfill alarm complying with 46 CFR 
39.2007 or 39.2009(a)(2) is set.
    (f) A cargo tank should remain sealed from the atmosphere during 
cargo transfer operations. The cargo tank may only be opened 
temporarily for gauging or sampling while the tank vessel is connected 
to a VCS as long as the following conditions are met:
    (1) The cargo tank is not being filled or no vapor is being 
transferred into the cargo tank;
    (2) For cargo loading, any pressure in the cargo tank vapor space 
is first reduced to atmospheric pressure by the VCS, except when the 
tank is inerted;
    (3) The cargo is not required to be closed or restricted gauged by 
46 CFR part 151, Table 151.05 or part 153, Table 1; and
    (4) For static accumulating cargo, all metallic equipment used in 
sampling or gauging must be electrically bonded to the vessel and 
remain bonded to the vessel until it is removed from the tank, and if 
the tank is not inerted, 30 minutes must have elapsed after any cargo 
transfer to the tank is stopped, before the equipment is put into the 
tank.
    (g) For static accumulating cargo, the initial transfer rate must 
be controlled in accordance with OCIMF ISGOTT Section 11.1.7 
(incorporated by reference, see 46 CFR 39.1005), in order to minimize 
the development of a static electrical charge.
    (h) If cargo vapor is collected by a facility that requires the 
vapor from the vessel to be inerted in accordance with 33 CFR 154.2105, 
the oxygen content in the vapor space of each cargo tank connected to 
the vapor collection system must not exceed 60 percent by volume of the 
cargo's minimum oxygen concentration for combustion (MOCC), or 8 
percent by volume for vapor of crude oil, gasoline blends, or benzene, 
at the start of cargo transfer. The oxygen content of each tank, or 
each area of a tank formed by each partial bulkhead, must be measured 
at a point 1.0 meter (3.28 feet) below the tank top and at a point 
equal to one-half of the ullage.
    (i) If the vessel is equipped with an inert gas system, the 
isolation valve required by 46 CFR 39.2001(e) must remain closed during 
vapor transfer.
    (j) Unless equipped with an automatic self-test and circuit-
monitoring feature, each high-level alarm and tank overfill alarm on a 
cargo tank being loaded, required by 46 CFR 39.2007 or 39.2009, must be 
tested at the tank for proper operation within 24 hours prior to the 
start of cargo transfer.

Subpart 39.4000--Vessel-to-Vessel Transfers Using Vapor Balancing

Sec.  39.4001  General requirements for vapor balancing--TB/ALL.

    (a) Vessels using vapor balancing while conducting a vessel-to-
vessel transfer operation, directly or through a shore loop, must meet 
the requirements of this subpart in addition to the requirements of 46 
CFR part 39,

[[Page 42648]]

subparts 39.1000, 39.2000, and 39.3000. Arrangements other than vapor 
balancing used to control vapor emissions during a vessel-to-vessel 
transfer operation must receive approval from the Commandant.
    (b) A vapor balancing operation must receive approval from the 
Commandant to use a compressor or blower to assist vapor transfer.
    (c) Vapor balancing is prohibited when the cargo tanks on a vessel 
discharging cargo are inerted and the cargo tanks on a vessel receiving 
cargo are not inerted.
    (d) A vessel that intends to collect vapors (during a vessel-to-
vessel transfer operation) from cargoes not previously approved must 
receive specific approval from the Commandant before beginning transfer 
operations.

Sec.  39.4003  Design and equipment for vapor balancing--TB/ALL.

    (a) During transfer operations, if the cargo tanks are inerted on a 
vessel discharging cargo to a receiving vessel with inerted cargo 
tanks, the service vessel must--
    (1) Inert the vapor transfer hose prior to transferring cargo 
vapor; and
    (2) Have an oxygen analyzer with a sensor or sampling connection 
fitted within 3 meters (9.74 feet) of the vessel vapor connection 
that--
    (i) Activates a visible and an audible alarm on the service vessel 
where cargo transfer is controlled when the oxygen content in the vapor 
collection system exceeds 60 percent by volume of the cargo's minimum 
oxygen concentration for combustion (MOCC), or 8 percent by volume for 
vapor of crude oil, gasoline blends, or benzene;
    (ii) Has an oxygen concentration indicator located on the service 
vessel where the cargo transfer is controlled; and
    (iii) Has a connection for injecting a span gas of known 
concentration for calibration and testing of the oxygen analyzer.
    (b) If the cargo tanks are not inerted on a vessel discharging 
cargo during transfer operations, and the cargo is flammable or 
combustible, the vapor collection line on the service vessel must be 
fitted with a detonation arrester that meets the requirements of 33 CFR 
154.2106, and be located within 3 meters (9.74 feet) of the vessel 
vapor connection.
    (c) An electrical insulating flange or one length of non-conductive 
hose must be provided between the vessel vapor connection on each 
vessel operating a vessel-to-vessel cargo transfer.

Sec.  39.4005  Operational requirements for vapor balancing--TB/ALL.

    (a) During a vessel-to-vessel transfer operation, each cargo tank 
being loaded must be connected by the vapor collection system to a 
cargo tank that is being discharged.
    (b) If the cargo tanks on both the vessel discharging cargo and the 
vessel receiving cargo are inerted, the following requirements must be 
met:
    (1) Each tank on a vessel receiving cargo, which is connected to 
the vapor collection system, must be tested prior to cargo transfer to 
ensure that the oxygen content in the vapor space does not exceed 60 
percent by volume of the cargo's minimum oxygen concentration for 
combustion (MOCC), or 8 percent by volume for vapor of crude oil, 
gasoline blends, or benzene. The oxygen content of each tank, or each 
area of a tank formed by each partial bulkhead, must be measured at a 
point 1 meter (3.28 feet) below the tank top and at a point equal to 
one-half of the ullage;
    (2) Prior to starting transfer operations, the oxygen analyzer 
required by 46 CFR 39.4003(a) must be tested for proper operation;
    (3) During transfer operations the oxygen content of vapors being 
transferred must be continuously monitored;
    (4) Cargo transfer must be terminated if the oxygen content exceeds 
60 percent by volume of the cargo's MOCC, or 8 percent by volume for 
vapor of crude oil, gasoline blends, or benzene;
    (5) Transfer operations may resume once the oxygen content in the 
tanks of the vessel receiving cargo is reduced to 60 percent by volume 
or less of the cargo's MOCC, or 8 percent by volume or less for vapor 
of crude oil, gasoline blends, or benzene; and
    (6) Prior to starting vapor transfer operations, the vapor transfer 
hose must be purged of air and inerted.
    (c) The isolation valve located on the service vessel required by 
46 CFR 39.2001(g) must not be opened until the pressure in the vapor 
collection system on the vessel receiving cargo exceeds the pressure in 
the vapor collection system on the vessel discharging cargo.
    (d) The vessel discharging cargo must control the cargo transfer 
rate so that the transfer rate does not exceed--
    (1) The authorized maximum discharge rate of the vessel discharging 
cargo;
    (2) The authorized maximum loading rate of the vessel receiving 
cargo; or
    (3) The processing rate of the approved vessel vapor processing 
system, if one is used to process the vapor collected during the 
transfer operations.
    (e) The pressure in the vapor space of any cargo tank connected to 
the vapor collection line on either the vessel receiving cargo or the 
vessel discharging cargo must not exceed 80 percent of the lowest 
setting of any pressure relief valve during ballasting or cargo 
transfer.
    (f) Impressed current cathodic protection systems must be de-
energized during cargo transfer operations.
    (g) Tank washing is prohibited unless the cargo tanks on both the 
vessel discharging cargo and the vessel receiving cargo are inerted, or 
the tank is isolated from the vapor collection line.

Subpart 39.5000--Multi-breasted Loading Using a Single Facility 
Vapor Connection

Sec.  39.5001  General requirements for multi-breasted loading--B/CLBR.

    (a) Each barge must be owned or operated by the same entity and 
must have an approved vapor control system (VCS).
    (b) There must be only one crossover vapor hose and it must--
    (1) Comply with 46 CFR 39.2001(h) and (i);
    (2) Have a diameter at least as that of the largest pipe in the 
outboard barge's VCS, and
    (3) If it extends more than 25 feet (7.62 meters) between the two 
barges during the transfer operation, it must be as short as is 
practicable, safe for the conditions, supported off the vessels' decks, 
and its pressure drop calculations must be approved for its length by 
the Marine Safety Center (MSC), or reapproved by the MSC if existing 
approval was based on a 25-foot hose.
    (c) The hazards associated with barge-to-barge or barge-to-shore 
electric currents must be controlled in accordance with sections 11.9 
or 17.5 of OCIMF ISGOTT (incorporated by reference, see 46 CFR 
39.1005).
    (d) The cargo transfer procedures must reflect the procedures to 
align and disconnect a facility VCS to and from an inboard barge, and 
alternately, to and from an outboard barge through the vapor cross-over 
hose and the inboard barge's vapor header, or ``dummy'' header. This 
must include proper connections for the facility VCS's alarm/shutdown 
system to the alarm/shutdown system of the barge being loaded at the 
time.
    (e) Calculations for multi-breasted loading must consider 
additional pressure drops across the barges' vapor collection systems 
and the cross vapor hose and must be reviewed and approved by the MSC 
per 46 CFR 39.1017(a).

[[Page 42649]]

    (f) Barge owners and operators must comply with any additional 
operational requirements imposed by the local Captain of the Port 
(COTP) in whose zone the shore facility is located. These facilities' 
VCSs must be certified for conducting such an operation.

Sec.  39.5003  Additional requirements for multi-breasted loading using 
an inboard barge vapor collection system--B/CLBR.

    (a) Each barge must have at least one liquid overfill protection 
system that fulfills the requirements of 46 CFR 39.2009.
    (b) The vapor header of an inboard barge that is used during 
outboard barge loading must--
    (1) Be aligned with the vapor header of the outboard barge;
    (2) Have a diameter at least as large as the diameter of the 
largest pipe in the vapor collection system of the outboard barge; and
    (3) Be marked in accordance with 46 CFR 39.2001(h).
    (c) A licensed tankerman, trained in and familiar with multi-
breasted loading operations, must be onboard each barge during transfer 
operations. The tankerman serves as the barge person-in-charge (PIC). 
During transfer operations, the barge PICs must maintain constant 
communication with each other as well as with the facility PIC.
    (d) If multi-breasted loading will be conducted using more than one 
liquid transfer hose from the shore facility, the facility must be 
capable of activating the emergency shutdown system required by 33 CFR 
154.550. This will automatically stop the cargo flow to each transfer 
hose simultaneously, in the event an upset condition occurs that closes 
the remotely operated cargo vapor shutoff valve in the facility's vapor 
control system. Multi-breasted loading is prohibited unless the shore 
facility can comply with this requirement.

Sec.  39.5005  Additional requirements for multi-breasted loading using 
a ``dummy'' vapor header--B/CLBR.

    (a) Each inboard barge ``dummy'' header used during outboard barge 
loading must--
    (1) Be aligned with the vapor header of the outboard barge;
    (2) Have a diameter at least as large as the diameter of the 
largest pipe in the vapor collection system of the outboard barge;
    (3) Be marked in accordance with 46 CFR 39.2001(h); and
    (4) Meet the same design and installation requirements for the 
vapor collection piping onboard the same barge.
    (b) Flanges must meet the same design and installation requirements 
for flanges in the vapor collection system onboard the same barge.
    (c) A stud must be permanently attached, as required in 46 CFR 
39.2001(j), to the vapor connection flange on the ``dummy'' header.

Subpart 39.6000--Tank Barge Cleaning Operations with Vapor 
Collection

Sec.  39.6001  Design and equipment of vapor collection and stripping 
systems--B/ALL.

    (a) Each barge engaged in cleaning operations at an approved 
cleaning facility must have a conductive fixed stripping line installed 
in each cargo tank. The line must extend to the low point of each cargo 
tank, extend through and be welded to the top of the cargo tank, and 
terminate above deck with a full port valve plugged at the open end.
    (b) An existing fixed stripping system may be used instead of the 
stripping line required in paragraph (a) of this section.
    (c) Each stripping line must be labeled at an on-deck location with 
the words ``Stripping Line-Tank'' followed by the tank's number, name, 
or location.
    (d) Vapors may be collected from the barge's cargo tanks through a 
common fixed vapor header, through the fixed liquid cargo header, or 
through flanged flexible hoses located at the top of each cargo tank.
    (e) The vapor collection system must not interfere with the proper 
operation of the cargo tank venting system.
    (f) A barge being gas-freed by a fluid displacement system must 
fulfill the following requirements:
    (1) If the fluid medium is a compressible fluid, such as inert gas, 
it must be injected into the barge's cargo tanks through a common fixed 
vapor header, through the fixed liquid cargo header, or through a 
flexible hoses flanged to a connection located at the top of each cargo 
tank;
    (2) If the fluid medium is a non-compressible fluid, such as water, 
it must be injected into the barge's cargo tanks through the fixed 
liquid cargo header only; and
    (3) If the fluid medium is a non-compressible fluid, such as water, 
the barge must be equipped with a liquid overfill protection 
arrangement and fulfill the requirements for tank barge liquid overfill 
protection contained in 46 CFR 39.2009.
    (g) The barge vapor connection must be electrically insulated from 
the facility vapor connection and the fluid injection connection must 
be electrically insulated from the fluid injection source, if fitted, 
in accordance with OCIMF ISGOTT section 17.5 (incorporated by 
reference, see 46 CFR 39.1005).
    (h) Vapor collection piping must be electrically bonded to the 
barge hull and must be electrically continuous.
    (i) All equipment used on the barge during cleaning operations must 
be electrically bonded to the barge and tested to ensure electrical 
continuity prior to each use.
    (j) Hoses used for the transfer of vapors during cleaning 
operations must meet the requirements of 46 CFR 39.2001(i) and have 
markings as required in 46 CFR 39.2001(h).
    (k) Hoses used for the transfer of liquids during cleaning 
operations must--
    (1) Have a designed burst pressure of at least 600 pounds per 
square inch gauge (psig);
    (2) Have a maximum allowable working pressure of at least 150 psig;
    (3) Be capable of withstanding at least the maximum vacuum rating 
of the cleaning facility's vapor-moving device without collapsing or 
constricting;
    (4) Be electrically continuous with a maximum resistance of 10,000 
ohms;
    (5) Have flanges with a bolthole arrangement complying with the 
requirements for 150 pound class ANSI B16.5 flanges (incorporated by 
reference, see 46 CFR 39.1005); and
    (6) Be abrasion and kinking resistant and compatible with the 
liquids being transferred.
    (l) If a hose is used to transfer either vapor or liquid from the 
barge during cleaning operations, hose saddles that provide adequate 
support to prevent the collapse or kinking of hoses must accompany hose 
handling equipment.

Sec.  39.6003  Overpressure and underpressure protection during 
stripping or gas-freeing operations--B/ALL.

    (a) The volumetric flow rates during stripping or gas-freeing 
operations must be limited within a range such that the cargo tank 
venting system required by 46 CFR 32.55 will keep the cargo tank within 
its maximum design working pressure or the maximum design vacuum.
    (b) Each barge must be fitted with a means for connecting the 
pressure-sensing and pressure-indicating devices required by 33 CFR 
154.2203(g) and (o) on each cargo tank top, or on the common vapor 
header provided that pressures measured by the devices are adjusted to 
compensate for the pressure drop across the vapor piping from the cargo 
tank to the devices. The valve for the connection point must be labeled 
``Pressure Sensor/indicator Connection.''

[[Page 42650]]

    (c) For stripping operations with closed cargo tanks, the maximum 
stripping rate must not exceed the volumetric flow capacity of the 
vacuum relief valve protecting the cargo tank.

Sec.  39.6005  Inspection prior to conducting gas-freeing operations--
B/ALL.

    (a) The following inspections must be conducted by the barge person 
in charge prior to commencing gas-freeing operations, and show that--
    (1) Each part of the barge's vapor collection system is aligned to 
allow vapor to flow to a cleaning facility's vapor control system 
(VCS);
    (2) If a fluid displacement system is used to conduct gas-freeing 
operations--
    (i) The fluid supply line is connected to the fluid injection 
connection; and
    (ii) The maximum fluid injection rate is determined in accordance 
with 46 CFR 39.6007(c)(2);
    (3) The maximum stripping or gas-freeing rate is determined in 
accordance with 46 CFR 39.6003(c) or 39.6007(c), respectively, and 
adequate openings required by 46 CFR 39.6007(c)(1) are available and 
identified;
    (4) The pressure-sensing and pressure-indicating devices required 
by 33 CFR 154.2203 are connected as required by 46 CFR 39.6003(b);
    (5) The maximum and minimum operating pressures of the barge being 
cleaned are determined;
    (6) Unrepaired loose covers, kinks, bulges, gouges, cuts, slashes, 
soft spots, or any other defects which would permit the discharge of 
vapors through the vapor recovery hose material must be detected during 
inspection and repaired prior to operation;
    (7) The facility vapor connection is electrically insulated from 
the barge vapor connection and the fluid injection connection is 
electrically insulated from the fluid injection source, if fitted, in 
accordance with OCIMF ISGOTT section 17.5 (incorporated by reference, 
see 46 CFR 39.1005); and
    (8) All equipment is bonded in accordance with 46 CFR 39.6001(h).

Sec.  39.6007  Operational requirements for tank barge cleaning--B/ALL.

    (a) During cleaning operations, vapors from a tank barge cannot be 
transferred to a cleaning facility which does not have a marine vapor 
control system (VCS) certified by a certifying entity, and its facility 
operations manual endorsed by the Captain of the Port (COTP) as meeting 
the requirements of 33 CFR part 154, subpart P.
    (b) Prior to commencing stripping operations, the maximum allowable 
stripping rate must be determined. The maximum allowable stripping rate 
must not exceed the volumetric flow capacity of the vacuum relief valve 
protecting the cargo tank.
    (c) The maximum gas-freeing rate is determined by the following:
    (1) For a vacuum displacement system--
    (i) The maximum allowable gas-freeing rate is a function of the 
area open to the atmosphere for the cargo tank being gas-freed. The 
area open to the atmosphere must be large enough to maintain the 
pressure in the cargo tank being gas-freed at or above 14.5 pounds per 
square inch absolute (psia) (-0.2 pounds per square inch gauge (psig));
    (ii) The maximum allowable gas-freeing rate must be calculated from 
Table 1 of this section, using the area open to the atmosphere for the 
cargo tank being gas-freed as the entering determination;
    (2) For a fluid displacement system, the maximum allowable gas-
freeing rate is determined by the lesser of the following:
    (i) Eighty percent of the total venting capacity of the pressure 
relief valve in the cargo tank venting system when relieving at its set 
pressure;
    (ii) Eighty percent of the total vacuum relieving capacity of the 
vacuum relief valve in the cargo tank venting system when relieving at 
its set pressure; or
    (iii) The rate based on pressure drop calculations at which, for a 
given pressure at the facility vapor connection, the pressure in the 
cargo tank being gas-freed exceeds 80 percent of the setting of any 
pressure relief valve in the cargo tank venting system.
    (d) Any hatch and/or fitting used to calculate the minimum area 
required to be open to the atmosphere must be opened and secured in 
such a manner as to prevent accidental closure during gas freeing. All 
flame screens for the hatch and/or fitting opened must be removed in 
order to allow for maximum airflow. The hatch and/or fitting must be 
secured open before the pressure in the cargo tank falls below 10 
percent of the highest setting of any of the barge's vacuum relief 
valves.
    (e) ``Do Not Close Hatch/Fitting'' signs must be conspicuously 
posted near the hatch and/or fitting opened during gas-freeing 
operations.
    (f) To minimize the dangers of static electricity, all equipment 
used on the barge during gas-freeing and cleaning operations must be 
electrically bonded to the barge and tested to ensure electrical 
continuity before each use.
    (g) If the barge is equipped with an inert gas system, the inert 
gas main isolation valve must remain closed during cleaning operations.
    (h) Vapors from incompatible cargoes that are collected 
simultaneously must be kept separated throughout the barge's entire 
vapor collection system. Chemical compatibility must be determined in 
accordance with the procedures contained in 46 CFR part 150, part A.

                              Table 1--Minimum Open Area for Barge Cleaning Hatches
----------------------------------------------------------------------------------------------------------------
                                           Air flow (CFS)                         Diameter
   Air flow (CFM)  (cubic feet/minute)      (cubic feet/        Open area          opening       Square opening
                                               second)       (square inches)      (inches)          (inches)
----------------------------------------------------------------------------------------------------------------
500.....................................               8.3              10.7               3.7               3.3
600.....................................              10.0              12.8               4.0               3.6
700.....................................              11.7              15.0               4.4               3.9
800.....................................              13.3              17.1               4.7               4.1
900.....................................              15.0              19.3               5.0               4.4
1000....................................              16.7              21.4               5.2               4.6
1100....................................              18.3              23.6               5.5               4.9
1200....................................              20.0              25.7               5.7               5.1
1300....................................              21.7              27.8               6.0               5.3
1400....................................              23.3              30.0               6.2               5.5
1500....................................              25.0              32.1               6.4               5.7
1600....................................              26.7              34.3               6.6               5.9
1700....................................              28.3              36.4               6.8               6.0
1800....................................              30.0              38.5               7.0               6.2
1900....................................              31.7              40.7               7.2               6.4

[[Page 42651]]

 
2000....................................              33.3              42.8               7.4               6.5
2100....................................              35.0              45.0               7.6               6.7
2200....................................              36.7              47.1               7.7               6.9
2300....................................              38.3              49.3               7.9               7.0
2400....................................              40.0              51.4               8.1               7.2
2500....................................              41.7              53.5               8.3               7.3
2600....................................              43.3              55.7               8.4               7.5
2700....................................              45.0              57.8               8.6               7.6
2800....................................              46.7              60.0               8.7               7.7
2900....................................              48.3              62.1               8.9               7.9
3000....................................              50.0              64.2               9.0               8.0
3100....................................              51.7              66.4               9.2               8.1
3200....................................              53.3              68.5               9.3               8.3
3300....................................              55.0              70.7               9.5               8.4
3400....................................              56.7              72.8               9.6               8.5
3500....................................              58.3              75.0               9.8               8.7
3600....................................              60.0              77.1               9.9               8.8
3700....................................              61.7              79.2              10.0               8.9
3800....................................              63.3              81.4              10.2               9.0
3900....................................              65.0              83.5              10.3               9.1
4000....................................              66.7              85.7              10.4               9.3
----------------------------------------------------------------------------------------------------------------

Sec.  39.6009  Barge person in charge: Designation and qualifications--
B/ALL.

    The designation and qualification requirements contained in 33 CFR 
155.700 and 33 CFR 155.710(a)(2) apply to the barge person in charge.

    Dated: June 25, 2013.
J.G. Lantz,
Director of Commercial Regulations and Standards, U. S. Coast Guard.
[FR Doc. 2013-15808 Filed 7-15-13; 8:45 am]
BILLING CODE 9110-04-P