Document ID: EPA-HQ-OAR-2014-0292-0058
Agency: epa
Document Type: Rule
Title: Revisions to Test Methods, Performance Specifications, and Testing Regulations for Air Emission Sources
Posted Date: 2016-08-30T04:00Z

[Federal Register Volume 81, Number 168 (Tuesday, August 30, 2016)]
[Rules and Regulations]
[Pages 59799-59826]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-19642]

[[Page 59799]]

Vol. 81

Tuesday,

No. 168

August 30, 2016

Part III

Environmental Protection Agency

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40 CFR Parts 51, 60, 61, et al.

Revisions to Test Methods, Performance Specifications, and Testing 
Regulations for Air Emission Sources; Final Rule

  Federal Register / Vol. 81 , No. 168 / Tuesday, August 30, 2016 / 
Rules and Regulations  

[[Page 59800]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 51, 60, 61, and 63

[EPA-HQ-OAR-2014-0292; FRL-9950-57-OAR]
RIN 2060-AS34

Revisions to Test Methods, Performance Specifications, and 
Testing Regulations for Air Emission Sources

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This action promulgates technical and editorial corrections 
and revisions to regulations related to source testing of emissions. We 
have made corrections and updates to testing provisions, and added 
newly approved alternatives to existing testing regulations. These 
revisions will improve the quality of data and provide flexibility in 
the use of approved alternative procedures. The revisions do not impose 
any new substantive requirements on source owners or operators.

DATES: The final rule is effective on October 31, 2016. The 
incorporation by reference materials listed in the rule are approved by 
the Director of the Federal Register as of October 31, 2016.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OAR-2014-0292. All documents in the docket are 
listed on the http://www.regulations.gov Web site. Although listed in 
the index, some information is not publicly available, e.g., 
confidential business information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the Internet and will be publicly available 
only in hard copy. Publicly available docket materials are available 
electronically through http://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Ms. Lula H. Melton, Office of Air 
Quality Planning and Standards, Air Quality Assessment Division (E143-
02), Environmental Protection Agency, Research Triangle Park, NC 27711; 
telephone number: (919) 541-2910; fax number: (919) 541-0516; email 
address: melton.lula@epa.gov.

SUPPLEMENTARY INFORMATION: The supplementary information in this 
preamble is organized as follows:

Table of Contents

I. General Information
    A. Does this action apply to me?
    B. What action is the Agency taking?
    C. Judicial Review
II. Background
III. Summary of Amendments
    A. Appendix M of Part 51
    B. Method 201A of Appendix M of Part 51
    C. Method 202 of Appendix M of Part 51
    D. Appendix P of Part 51
    E. General Provisions (Subpart A) of Part 60
    F. Standards of Performance for Stationary Spark Ignition 
Internal Combustion Engines (Subpart JJJJ) of Part 60
    G. Method 1 of Appendix A-1 of Part 60
    H. Method 2 of Appendix A-1 of Part 60
    I. Method 2G of Appendix A-2 of Part 60
    J. Method 3C of Appendix A-2 of Part 60
    K. Method 4 of Appendix A-3 of Part 60
    L. Method 5 of Appendix A-3 of Part 60
    M. Method 5H of Appendix A-3 of Part 60
    N. Method 5I of Appendix A-3 of Part 60
    O. Method 6C of Appendix A-4 of Part 60
    P. Method 7E of Appendix A-4 of Part 60
    Q. Method 10 of Appendix A-4 of Part 60
    R. Methods 10A and 10B of Appendix A-4 of Part 60
    S. Method 15 of Appendix A-5 of Part 60
    T. Method 16C of Appendix A-6 of Part 60
    U. Method 18 of Appendix A-6 of Part 60
    V. Method 25C of Appendix A-7 of Part 60
    W. Method 26 of Appendix A-8 of Part 60
    X. Method 26A of Appendix A-8 of Part 60
    Y. Method 29 of Appendix A-8 of Part 60
    Z. Method 30A of Appendix A-8 of Part 60
    AA. Method 30B of Appendix A-8 of Part 60
    BB. Appendix B to Part 60--Performance Specifications
    CC. Performance Specification 1 of Appendix B of Part 60
    DD. Performance Specification 2 of Appendix B of Part 60
    EE. Performance Specification 3 of Appendix B of Part 60
    FF. Performance Specification 4A of Appendix B of Part 60
    GG. Performance Specification 11 of Appendix B of part 60
    HH. Performance Specification 15 of Appendix B of Part 60
    II. Performance Specification 16 of Appendix B of Part 60
    JJ. Procedure 2 of Appendix F of Part 60
    KK. General Provisions (Subpart A) of Part 61
    LL. Method 107 of Appendix B of Part 61
    MM. General Provisions (Subpart A) of Part 63
    NN. Method 320 of Appendix A of Part 63
IV. Public Comments on the Proposed Rule
V. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive Order 13563: Improving Regulation and Regulatory Review
    B. Paperwork Reduction Act (PRA)
    C. Regulatory Flexibility Act (RFA)
    D. Unfunded Mandates Reform Act (UMRA)
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health Risks and Safety Risks
    H. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use
    I. National Technology Transfer and Advancement Act (NTTAA) and 
1 CFR part 51
    J. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    K. Congressional Review Act (CRA)v

I. General Information

A. Does this action apply to me ?

    The revisions promulgated in this final rule apply to a large 
number of industries that are already subject to the current provisions 
of 40 Code of Federal Regulations (CFR) parts 51, 60, 61, and 63. For 
example, Performance Specification 4A applies to municipal waste 
combustors and hazardous waste incinerators. We did not list all of the 
specific affected industries or their North American Industry 
Classification System (NAICS) codes herein since there are many 
affected sources. If you have any questions regarding the applicability 
of this action to a particular entity, consult either the air 
permitting authority for the entity or your EPA Regional representative 
as listed in 40 CFR 63.13.

B. What action is the Agency taking?

    We are promulgating technical and editorial corrections and 
revisions to regulations related to source testing of emissions. More 
specifically, we are correcting typographical and technical errors, 
updating obsolete testing procedures, adding approved testing 
alternatives, and clarifying testing requirements.

C. Judicial Review

    Under section 307(b)(1) of the Clean Air Act (CAA), judicial review 
of this final rule is available by filing a petition for review in the 
United States Court of Appeals for the District of Columbia Circuit by 
October 31, 2016. Under section 307(d)(7)(B) of the CAA, only an 
objection to this final rule that was raised with reasonable 
specificity during the period for public comment can be raised during 
judicial review. Moreover, under section 307(b)(2) of the CAA, the 
requirements that are the subject of this final rule may not be 
challenged later in civil or criminal proceedings brought by the EPA to 
enforce these requirements.

[[Page 59801]]

II. Background

    The revisions to test methods, performance specifications, and 
testing regulations were proposed in the Federal Register on September 
8, 2015 (80 FR 54146). The public comment period ended December 9, 
2015, and 42 comment letters were received from the public. Changes 
were made to this final rule based on the public comments.

III. Summary of Amendments

A. Appendix M of Part 51

    In paragraph (4)(a) of appendix M to part 51, Methods 30A and 30B 
are added to the list of methods not requiring the use of audit 
samples.

B. Method 201A of Appendix M of Part 51

    In Method 201A, the constant in equation 9 is corrected from 
0.07657 to 0.007657.

C. Method 202 of Appendix M of Part 51

    In Method 202, section 3.8 is added to incorporate ASTM E617-13 by 
reference. The first sentence in section 8.5.4.3 is revised by adding 
``back half of the filterable PM filter holder.'' Also, in section 
8.5.4.3, sentences inadvertently omitted in the proposed rule are re-
inserted. In section 9.10, the erroneous statement ``You must purge the 
assembled train as described in sections 8.5.3.2 and 8.5.3.3.'' is 
corrected to reference section 8.5.3. Sections 10.3 and 10.4 are added 
to require calibration of the field balance used to weigh impingers and 
to require a multipoint calibration of the analytical balance. In 
section 10.3, the proposed language is revised to allow the use of a 
Class 6 tolerance weight (or better) in lieu of the proposed Class 3 
(or better) tolerance weight for checking the field balance accuracy 
because the calibration weight does not need to be any better than one-
half of the tolerance for the measurement. Sections 11.2.2.1, 11.2.2.2, 
11.2.2.3, 11.2.2.4 and figure 7 are re-inserted.

D. Appendix P of Part 51

    In appendix P of part 51, section 3.3, the erroneous reference to 
section 2.1 of Performance Specification 2 of appendix B of part 60 is 
corrected to section 6.1. Also, in section 3.3, the reference to the 
National Bureau of Standards is changed to the National Institute of 
Standards and Technology. In section 5.1.3, the erroneous reference to 
paragraph 4.1.4 is changed to reflect the correct reference to 
paragraphs 3.1.4 and 3.1.5.

E. General Provisions (Subpart A) of Part 60

    In the General Provisions of part 60, section 60.8(f) is revised to 
require the reporting of specific emissions test data in test reports. 
These data elements are required regardless of whether the report is 
submitted electronically or in paper format. Note that revisions are 
made to the data elements (that were listed in the proposed rule) to 
provide clarity and to more appropriately define and limit the extent 
of elements reported for each test method included in a test report. 
These modifications ensure that emissions test reporting includes all 
data necessary to assess and assure the quality of the reported 
emissions data and that the reported information appropriately 
describes and identifies the specific unit covered by the emissions 
test report. Section 60.17(g) is revised to add ASTM D6911-15 to the 
list of incorporations by reference.

F. Standards of Performance for Stationary Spark Ignition Internal 
Combustion Engines (Subpart JJJJ) of Part 60

    We received a request for a public hearing on this rule. We held a 
hearing in Research Triangle Park, North Carolina on October 8, 2015. 
All comments received at that hearing were related to our proposed 
revisions to subpart JJJJ, and a transcript of that hearing is 
available in the rule docket [EPA-HQ-OAR-2014-0292]. We also received a 
substantial number of comments from the public, both supportive of and 
in opposition to the revisions that we proposed.
    At issue is the use of specific methodologies in a manner allowing 
a tester to speciate the volatile organic compounds (VOC) in the 
emissions and, from those speciated measurements, calculate a total VOC 
emissions rate using Fourier Transform Infrared Spectroscopy (FTIR 
using Method 320 or ASTM D6348-03) or Method 18, a measurement 
methodology that makes use of a combination of capture and analytical 
approaches. We proposed to remove Method 320 and ASTM D6348-03 as 
options for measuring VOC emissions under subpart JJJJ due to the lack 
of a consistent, demonstrable, and validated approach to measuring 
total VOC emissions. This decision was primarily due to the lack of a 
discrete list of compounds identified as those constituting the total 
VOC for the sources affected by subpart JJJJ. We proposed to eliminate 
the option to use these measurement approaches and leave Method 25A 
itself, a total hydrocarbon measurement approach, as the sole means of 
determining compliance with the total VOC emissions limits in the rule. 
We are concerned that implementation of Methods 320, ASTM D6348-03, and 
Method 18 does not provide proper and consistent quality assurance (QA) 
for compliance demonstration with total VOC measurement as required 
under subpart JJJJ.
    Several commenters stated that prohibiting the use of FTIR to 
measure VOC and leaving Method 25A as the sole means of demonstrating 
compliance would result in an increased cost to industry. The 
commenters reasoned that this would decrease the number of tests that 
could be conducted in a single day because Method 25A requires more 
time to set up and run. We did not find compelling support for this 
argument. A properly conducted emissions test using FTIR technology and 
Method 320 or ASTM D6348-03 takes several hours to conduct, including 
time for equipment setup including the same sampling probe and heated 
sample transport line requirements as Method 25A, warmup which takes 
the same amount of time as Method 25A, conducting appropriate 
calibration and spiking data quality assessments very similar in 
duration to the required Method 25A calibration, actual source sampling 
time to span three 1-hour periods, leak tests, and post-test QA 
procedures common to each method. While it is possible to conduct two 
such test runs in a single 12- to 14-hour day, it is likewise possible 
to conduct two such test runs with Method 25A in that same time frame.
    Several commenters also remarked that using FTIR is less complex, 
easier, and quicker than using Method 25A, but we do not find this 
argument sufficiently compelling to reverse our proposed revisions. We 
understand that while an experienced spectroscopist can operate an FTIR 
with relative ease as compared to a novice, the process of quality 
assuring emissions data measured by FTIR in accordance with Method 320 
or ASTM D6348-03 is not a trivial matter. Calibration checks and matrix 
spiking of target compounds, including the ``most difficult to 
recover'' compound (as required by Method 320), is both challenging and 
time consuming due to the need to rule out interferences that may be 
caused by the emissions gas matrix while working to individually 
quantify each VOC in that matrix. In summation, we do not agree that 
the use of FTIR for quantification of total VOC is quick, easy or less 
expensive to

[[Page 59802]]

conduct when compared with the use of Method 25A.
    Several commenters provided information to the docket, and others 
stated individually during the public hearing that they have provided a 
list of VOC to the docket, or have compiled a list of VOC or recommend 
that EPA address the FTIR measurement issue through the agency 
providing a list of VOC that make up 95 percent of the emissions from 
natural gas-fired spark ignition (SI) engines. We agree with commenters 
that a list of VOC could be developed; however, we recognize that the 
list must represent total VOC (all the VOC that could be emitted from 
SI engines affected by subpart JJJJ), as that is the compliance 
requirement stated in the rule. We have not stated that 95 percent of 
the VOC emissions are the target goal for such a list. In a memo to the 
docket of this rule (Technical memorandum dated September 28, 2015, to 
Docket ID No. EPA-HQ-OAR-2014-0292 titled, ``Proposal to remove Methods 
18, 320, and ASTM D6348-03 as Acceptable Methods for Measuring Total 
VOC Under 40 CFR 60, Subpart JJJJ''), we state that we are actively 
seeking sufficient documentation to create a complete list of VOC to 
support a speciated hydrocarbon measurement approach such as FTIR and/
or Method 18. We received data from commenters that moves us toward 
compiling such a list, but we did not receive sufficient demonstration 
that all VOC were represented in that list. Additionally, while we 
received information on VOC present in well-operated and controlled 
engines, the data does not include VOC that may be present largely 
during, or only during, poor performance periods and could, thereby, 
serve as key indicators of engines that are not well-operated, well-
controlled, or in compliance with the applicable standard. Therefore, 
we remain unable to define a complete list of VOC that would need to be 
quantified by a speciated measurement approach to demonstrate that 
total VOC were measured during a compliance test. Even so, we are 
swayed by arguments such as those made in support of speciated 
measurement approaches, specifically their ability to account for 
methane and ethane as separate quantifiable emissions.
    Two commenters remarked that they do not believe that Method 25A is 
able to produce accurate total VOC values because there is an inherent 
issue with the ``difference or subtraction'' method when applied to 
compressed natural gas (CNG)-based emissions. We reviewed the data 
provided by the commenters in this respect and did not arrive at the 
same conclusion. Our review shows that the commenters appear to double-
count some of the emissions in arriving at their results and do not 
present compelling evidence that demonstrates the ability of a 
hydrocarbon cutter to remove all ethane from the measured gas.
    Two commenters stated that FTIR can measure real-time non-methane, 
non-ethane VOC. We agree that this speciated approach is capable of 
providing emissions data for methane, ethane, and other VOC in near-
real-time.
    One commenter recommended that we allow FTIR methods since FTIR is 
the only technology that can provide a mass emissions rate and since 
FTIR does not have a zero drift nor calibration drift problem like 
Method 25A. Subpart JJJJ requires the calculation of a mass emissions 
rate on a propane basis and Method 25A, calibrated with propane and 
using the molecular weight of propane (44.01 lb/lb-mol) for mass 
emissions calculations, is quite capable of providing a mass emissions 
rate appropriate for determination of compliance with the VOC standards 
in subpart JJJJ. In regard to zero drift, Method 25A has QA and quality 
control (QC) criteria to limit the acceptance of data where instrument 
drift is excessive.
    Three commenters noted that we did not provide supporting data for 
proposing to disallow FTIR methods that have been allowed under subpart 
JJJJ for the past 7 years. We submitted a supporting memo to the docket 
(Technical memorandum dated September 28, 2015, to Docket ID No. EPA-
HQ-OAR-2014-0292 titled, ``Proposal to Remove EPA Methods 18, 320, and 
ASTM D6348-03 as Acceptable Methods for Measuring Total VOC Under 40 
CFR 60, Subpart JJJJ'') that provides the reasoning and justification 
for our proposal.
    One commenter recommended that changes to subpart JJJJ test methods 
be proposed as a separate rulemaking under subpart JJJJ. We believe 
that we have the authority to make necessary or otherwise appropriate 
changes to a specific test procedure or pollutant measurement 
requirement in a rule through this periodic rulemaking.
    One commenter agreed with our proposed position that FTIR should 
not be used to measure total VOC, but remarked that Method 18 should 
continue to be allowed since it allows direct measurement of VOC 
constituents using gas chromatography and does not rely on differential 
methods or require multiple test methods. We found the latter arguments 
and reasoning to be persuasive and compelling. Method 18 does contain 
provisions to screen and calibrate for VOC present in the emissions and 
thereby measure total VOC from a specific source. While this can be a 
complex and sometimes tedious undertaking, we recognize that it is an 
appropriate approach to measure total VOC from a specific source and 
are modifying the final rule language to reflect that this is 
allowable.
    Two additional commenters agreed with our proposed position that 
the current FTIR methodologies are not adequately measuring total VOC. 
One of the commenters remarked that testers do not provide adequate 
total VOC results. The other commenter recommended only allowing FTIR 
if the QA is complete and accurate and if all VOC are proven to be 
accounted for. We are swayed by this commenter's support for complete 
QA/QC of data and stipulation that all VOC are proven to be accounted 
for. Although we do not currently possess sufficient data to compile a 
complete list of VOCs expected to be emitted from SI engines, we 
believe that where data with complete QA/QC are available, we may 
acquire sufficient data over time.
    This action finalizes requirements to clarify the conduct of QA/QC 
procedures and report the QA/QC data with the emissions measurement 
data when applying Method 320 and ASTM D6348-03. We will revisit this 
decision and make a subsequent determination of the appropriateness for 
the use of Method 320 and/or ASTM-D6348 during the first risk and 
technology review evaluation for this sector.
    In Table 2 of subpart JJJJ, the allowances to use Method 320 and 
ASTM D6348-03 are retained. The language requiring the reporting of 
specific QA/QC data when these test methods are used has been added to 
paragraph 60.4245(d).
    The typographical error in the proposed Table 2 of subpart JJJJ is 
corrected; ``methane cutter'' is replaced with ``hydrocarbon cutter'' 
in paragraph (5) of section c.

G. Method 1 of Appendix A-1 of Part 60

    In Method 1, section 11.2.1.2, the word ``istances'' is changed to 
``distances'' in the second sentence, and the last two sentences in 
this section (inadvertently omitted in the proposed rule) are re-
inserted. The second figure labeled Figure 1-2 is deleted because two 
figures labeled Figure 1-2 were inadvertently included.

H. Method 2 of Appendix A-1 of Part 60

    In Method 2, instructions are given for conducting S-type pitot 
calibrations. Currently, the same equipment is commonly used for both 
Methods 2 and

[[Page 59803]]

2G (same S-type pitot), but the calibration procedure is slightly 
different in each method. Other key pieces that enhance the QA/QC of 
the calibrations are added to Method 2, and the amount of blockage 
allowed is reduced to improve calibration accuracy. To address these 
issues, changes are made to sections 6.7, 10.1.2.3, 10.1.3.4, 10.1.3.7, 
and 10.1.4.1.3 of Method 2. Sentences in section 6.7 (inadvertently 
omitted in the proposed rule) are re-inserted. In section 10.1.4.3, the 
erroneous reference to section 10.1.4.4 is corrected to section 12.4.4. 
The portion of Figure 2-10 labeled (b) is deleted because it is 
erroneous, and the label (a) is removed from the figure.

I. Method 2G of Appendix A-2 of Part 60

    In Method 2G, instructions are given for conducting S-type pitot 
calibrations. Currently, the same equipment is commonly used for both 
Methods 2 and 2G (same S-type pitot), but the calibration procedure is 
slightly different in each method. Other key pieces that enhance the 
QA/QC of the calibrations are added to the method, and the amount of 
blockage allowed is reduced to tighten up calibration accuracy. Changes 
are made to sections 6.11.1, 6.11.2, 10.6.6, and 10.6.8 of Method 2G to 
address these issues. In section 10.6.6, the proposed language 
regarding recording rotational speed is revised based on a public 
comment.

J. Method 3C of Appendix A-2 of Part 60

    In Method 3C, section 6.3 is revised to add subsections (6.3.1, 
6.3.2, 6.3.3, 6.3.4, and 6.3.5) that clarify the requirements necessary 
to check analyzer linearity.

K. Method 4 of Appendix A-3 of Part 60

    In Method 4, section 10.3 (Field Balance) is added to require 
calibration of the balance used to weigh impingers. In section 10.3, 
the proposed language is revised to allow the use of a Class 6 
tolerance weight (or better) in lieu of the proposed Class 3 (or 
better) tolerance weight for checking the field balance accuracy 
because the calibration weight does not need to be any better than one-
half of the tolerance for the measurement. Section 12.2.5, which gives 
another option for calculating the approximate moisture content, is 
added. Section 16.4 is revised to clarify that a fuel sample must be 
taken and analyzed to develop F-factors required by the alternative 
procedure. Also, in section 16.4, percent relative humidity is 
inadvertently defined as ``calibrated hydrometer acceptable''; the word 
``hydrometer'' is replaced with ``hygrometer.''

L. Method 5 of Appendix A-3 of Part 60

    In Method 5, we erroneously finalized the reference to the Isostack 
metering system in 79 FR 11228. Therefore, this reference from section 
6.1.1.9 is removed. Broadly applicable test method determinations or 
letters of assessments, regarding whether specific alternative metering 
equipment meets the specifications of the method as was our intent in 
the ``Summary of Comments and Responses on Revisions to Test Methods 
and Testing Regulations'' (EPA-HQ-OAR-2010-0114-0045), will continue to 
be issued. In section 6.1.1.9, the parenthetical phrase ``(rechecked at 
least one point after each test)'' is removed since the requirements 
for temperature sensors are given in section 10.5 of Method 5. The 
phrase ``after ensuring that all joints have been wiped clean of 
silicone grease'' is removed from section 8.7.6.2.5. Sections 10.7 and 
10.8 are added to require calibration of the balance used to weigh 
impingers and to require a multipoint calibration of the analytical 
balance. In section 10.7, the proposed language is revised to allow the 
use of a Class 6 tolerance weight (or better) in lieu of the proposed 
Class 3 (or better) tolerance weight for checking the field balance 
accuracy because the calibration weight does not need to be any better 
than one-half of the tolerance for the measurement. In section 10.8, 
the proposed language is revised to ``Audit the balance each day it is 
used for gravimetric measurements by weighing at least one ASTM E617-13 
Class 2 tolerance (or better) calibration weight that corresponds to 50 
to 150 percent of the weight of one filter or between 1 g and 5 g.''

M. Method 5H of Appendix A-3 of Part 60

    In Method 5H, sections 10.4 and 10.5 are added to require 
calibration of the field balance used to weigh impingers and to require 
a multipoint calibration of the analytical balance. In section 10.4, 
the proposed language is revised to allow the use of a Class 6 
tolerance weight (or better) in lieu of the proposed Class 3 (or 
better) tolerance weight for checking the field balance accuracy 
because the calibration weight does not need to be any better than one-
half of the tolerance for the measurement. In section 10.5, the 
proposed language is revised to ``Audit the balance each day it is used 
for gravimetric measurements by weighing at least one ASTM E617-13 
Class 2 tolerance (or better) calibration weight that corresponds to 50 
to 150 percent of the weight of one filter or between 1 g and 5 g.''

N. Method 5I of Appendix A-3 of Part 60

    In Method 5I, sections 10.1 and 10.2 are added to require 
calibration of the field balance used to weigh impingers and to require 
a multipoint calibration of the analytical balance. In section 10.1, 
the proposed language is revised to allow the use of a Class 6 
tolerance weight (or better) in lieu of the proposed Class 3 (or 
better) tolerance weight for checking the field balance accuracy 
because the calibration weight does not need to be any more accurate 
than one-half of the tolerance for the measurement. In section 10.2, 
the proposed language is revised to ``Audit the balance each day it is 
used for gravimetric measurements by weighing at least one ASTM E617-13 
Class 2 tolerance (or better) calibration weight that corresponds to 50 
to 150 percent of the weight of one filter or between 1 g and 5 g.''

O. Method 6C of Appendix A-4 of Part 60

    In Method 6C, the language detailing the methodology for performing 
interference checks in section 8.3 is revised to clarify and streamline 
the procedure. While we continue to believe that quenching can be an 
issue for fluorescence analyzers, the language regarding quenching that 
was promulgated on February 27, 2014, has raised many questions and is 
being removed. It is our opinion that the interference check, if done 
properly, using sulfur dioxide (SO2) and both levels of 
carbon dioxide (CO2) as specified in Table 7E-3 of Method 
7E, will evaluate effects due to quenching. We will continue to 
evaluate data as it becomes available and propose additional language, 
as needed. However, if you believe that quenching is an issue, we 
recommend that you repeat the interference check using the 
CO2 values specified in Table 7E-3 and an SO2 
value similar to your measured stack emissions.

P. Method 7E of Appendix A-4 of Part 60

    In Method 7E, section 8.1.2, the requirements/specifications for 
the 3-point sampling line are revised to be consistent with Performance 
Specification 2; the new requirement is 0.4, 1.2, and 2.0 meters.
    The language in section 8.2.7 regarding quenching that was 
promulgated on February 27, 2014, has raised many questions, and is 
being

[[Page 59804]]

removed at this time. It is our opinion that the interference check, if 
done properly, using the gas levels specified in Table 7E-3 of Method 
7E, will evaluate analyzer bias. We will continue to evaluate data as 
it becomes available and propose additional language in the future as 
needed. However, if you feel that analyzer bias is an issue, we 
recommend that you repeat the interference check using calibration gas 
values similar to your measured stack emissions. The language in 
section 8.2.7 requiring that the interference check be performed 
periodically or after major repairs has also been removed to be 
consistent with the language found in section 8.2.7 (2), which states 
``This interference test is valid for the life of the instrument unless 
major analytical components (e.g., the detector) are replaced with 
different model parts.''
    The word ``equations'' is replaced with ``equation'' in the 
sentence in section 12.8 that reads ``If desired, calculate the total 
NOX concentration with a correction for converter efficiency 
using equation 7E-8.''
    We requested and received comments on the stratification test in 
Method 7E. We will consider the comments and propose changes in a 
future rulemaking.

Q. Method 10 of Appendix A-4 of Part 60

    In Method 10, sections 6.2.5 and 8.4.2 are revised, and section 
6.2.6 is added to clarify the types of sample tanks allowed for 
integrated sampling.

R. Methods 10A and 10B of Appendix A-4 of Part 60

    Methods 10A and 10B are revised to allow the use of sample tanks as 
an alternative to flexible bags for sample collection.

S. Method 15 of Appendix A-5 of Part 60

    In Method 15, section 8.3.2 is revised to clarify the calibrations 
that represent partial calibration.

T. Method 16C of Appendix A-6 of Part 60

    In Method 16C, section 12.2, equation 16C-1 is revised to replace 
Cv (manufacturer certified concentration of a calibration 
gas in ppmv SO2) in the denominator with CS (calibration 
span in ppmv). The definition of CS is added to the nomenclature in 
section 12.1, and the definition of Cv is retained in the 
nomenclature in section 12.1 because Cv is in the numerator 
of equation 16C-1.

U. Method 18 of Appendix A-6 of Part 60

    In Method 18, section 8.2.1.5.2.3 is removed because the General 
Provisions to Part 60 already include a requirement to analyze two 
field audit samples as described in section 9.2.

V. Method 25C of Appendix A-7 of Part 60

    In Method 25C, section 9.1 is corrected to reference section 8.4.2 
instead of section 8.4.1. Section 11.2 is deleted because the audit 
sample analysis is now covered under the General Provisions to Part 60. 
The nomenclature is revised in section 12.1, and equation 25C-2 is 
revised in section 12.3. Sections 12.4, 12.5, 12.5.1, and 12.5.2 are 
added to incorporate equations to correct sample concentrations for 
ambient air dilution. In section 12.5.2, the reference to equation 25C-
4 is corrected to 25C-5.

W. Method 26 of Appendix A-8 of Part 60

    In Method 26, section 13.3 is revised to indicate the correct 
method detection limit; the equivalent English unit for the metric 
quantity is added.

X. Method 26A of Appendix A-8 of Part 60

    In Method 26A, language regarding minimizing chloride interferences 
is added to section 4.3. Also in section 4.3, the first sentence 
(inadvertently omitted in the proposed rule) is re-inserted.
    Sections 6.1.7 and 8.1.5 are not changed in this final rule. The 
language in the proposed rule that revised the required probe and 
filter temperature requirements in sections 6.1.7 and 8.1.5 to allow a 
lower probe and filter temperature was an error.
    In section 8.1.6, the typographical error, ``. . . between 120 and 
134 [deg]C (248 and 275 [deg]F . . .''), is corrected to ``. . . 
between 120 and 134 [deg]C (248 and 273 [deg]F . . .'').

Y. Method 29 of Appendix A-8 of Part 60

    In Method 29, section 8.2.9.3 is revised to require rinsing 
impingers containing permanganate with hydrogen chloride (HCl) to 
ensure consistency with the application of Method 29 across various 
stationary source categories and because there is evidence that HCl is 
needed to release the mercury (Hg) bound in the precipitate from the 
permanganate. Sections 10.4 and 10.5 are added to require calibration 
of the field balance used to weigh impingers and to require a 
multipoint calibration of the analytical balance. In section 10.4, the 
proposed language is revised to allow the use of a Class 6 tolerance 
weight (or better) in lieu of the proposed Class 3 (or better) 
tolerance weight for checking the field balance accuracy because the 
calibration weight does not need to be any better than one-half of the 
tolerance for the measurement.

Z. Method 30A of Appendix A-8 of Part 60

    In Method 30A, the heading of section 8.1 is changed from ``Sample 
Point Selection'' to ``Selection of Sampling Sites and Sampling 
Points.''

AA. Method 30B of Appendix A-8 of Part 60

    In Method 30B, the heading of section 8.1 is changed from ``Sample 
Point Selection'' to ``Selection of Sampling Sites and Sampling 
Points.'' In section 8.3.3.8, the reference to ASTM WK223 is changed to 
ASTM D6911-15, and the last two sentences in this section 
(inadvertently omitted in the proposed rule) are re-inserted.

BB. Appendix B to Part 60--Performance Specifications

    In the index to appendix B to part 60, Performance Specification 
16--Specifications and Test Procedures for Predictive Emission 
Monitoring Systems in Stationary Sources is added.

CC. Performance Specification 1 of Appendix B of Part 60

    In Performance Specification 1, paragraph 8.1(2)(i) is revised in 
order to not limit the location of a continuous opacity monitoring 
system (COMS) to a point at least four duct diameters downstream and 
two duct diameters upstream from a control device or flow disturbance. 
Paragraph 8.1(2)(i) refers to paragraphs 8.1(2)(ii) and 8.1(2)(iii) for 
additional options.

DD. Performance Specification 2 of Appendix B of Part 60

    In Performance Specification 2, the definition of span value is 
revised in section 3.11. The sentence, ``For spans less than 500 ppm, 
the span value may either be rounded upward to the next highest 
multiple of 10 ppm, or to the next highest multiple of 100 ppm such 
that the equivalent emissions concentration is not less than 30 percent 
of the selected span value.'', is added to section 3.11. Also, in 
section 6.1.1, the data recorder language is revised. In section 6.1.2, 
the term ``high-level'' is changed to ``span'' to be consistent with 
the definition of span value discussed above. In section 16.3.2, the 
characters ``|dverbar'' are replaced with d which is the average 
difference between

[[Page 59805]]

responses and the concentration/responses. In section 18, Table 2-2 is 
detached from Figure 2-1, and the figure is clearly labeled as 
``Calibration Drift Determination.''

EE. Performance Specification 3 of Appendix B of Part 60

    In Performance Specification 3, section 13.2 is revised to clarify 
how to calculate relative accuracy. The absolute value symbol is added 
to the proposed definition of absolute value of the mean of the 
differences.

FF. Performance Specification 4A of Appendix B of Part 60

    In Performance Specification 4A, the response time test procedure 
in sections 8.3 and 8.3.1 is revised. In section 8.3.1, the next to the 
last sentence is re-worded to ``Repeat the entire procedure until you 
have three sets of data to determine the mean upscale and downscale 
response times.'' Also, the proposed response time requirement in 
section 13.3 is revised to 240 seconds.

GG. Performance Specification 11 of Appendix B of Part 60

    In Performance Specification 11, equations 11-1 and 11-2 are 
revised in section 12.1, and the response range is used in lieu of the 
upscale value in section 13.1. In section 12.1, the sentence in 
paragraph (3) that was inadvertently omitted is re-inserted.

HH. Performance Specification 15 of Appendix B of Part 60

    In Performance Specification 15, the statement, ``An audit sample 
is obtained from the Administrator,'' is deleted from paragraph 9.1.2. 
Also, in Performance Specification 15, reserved sections 14.0 and 15.0 
are added.

II. Performance Specification 16 of Appendix B of Part 60

    In Performance Specification 16, Table 16-1 is changed to be 
consistent with conventional statistical applications; the values 
listed in the column labelled n-1 (known as degrees of freedom) are 
corrected to coincide with standard t-tables, and the footnote is 
clarified. Section 12.2.3 is revised for selection of n-1 degrees of 
freedom.

JJ. Procedure 2 of Appendix F of Part 60

    In Procedure 2, equations 2-2 and 2-3 in section 12.0 are revised 
to correctly define the denominator when calculating calibration drift. 
Also, equation 2-4 in section 12.0 is revised to correctly define the 
denominator when calculating accuracy. The proposed equation 2-4 is 
revised to:
[GRAPHIC] [TIFF OMITTED] TR30AU16.000

KK. General Provisions (Subpart A) of Part 61

    Section 61.13(e)(1)(i) of the General Provisions of Part 61 is 
revised to add Methods 30A and 30B to the list of methods not requiring 
the use of audit samples.

LL. Method 107 of Appendix B of Part 61

    In Method 107, the term ``Geon'' is deleted from the heading in 
section 11.7.3.

MM. General Provisions (Subpart A) of Part 63

    In the General Provisions of Part 63, section 63.7(c)(2)(iii)(A) is 
revised to add Methods 30A and 30B to the list of methods not requiring 
the use of audit samples.
    Section 63.7(g)(2) is revised to require the reporting of specific 
emissions test data in test reports. These data elements are required 
regardless of whether the report is submitted electronically or in 
paper format. Revisions are made to the list of proposed data elements 
to provide clarity and to more appropriately define and limit the 
extent of elements reported for each test method included in a test 
report. These modifications ensure that emissions test reporting 
includes all data necessary to assess and assure the quality of the 
reported emissions data and that the reported information appropriately 
describes and identifies the specific unit covered by the emissions 
test report.

NN. Method 320 of Appendix A of Part 63

    In Method 320, sections 13.1, 13.4, and 13.4.1 are revised to 
indicate the correct Method 301 reference.

IV. Public Comments on the Proposed Rule

    Forty-two comment letters were received on the proposed rule. The 
public comments and the agency's responses are summarized in the 
Summary of Comments and Responses document located in the docket for 
this rule. See the ADDRESSES section of this preamble.

V. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is not a ``significant regulatory action'' under the 
terms of Executive Order (E.O.) 12866 (58 FR 51735, October 4, 1993) 
and is, therefore, not subject to review under Executive Orders 12866 
and 13563 (76 FR 3821, January 21, 2011).

B. Paperwork Reduction Act (PRA)

    This action does not impose an information collection burden under 
the PRA. This action does not add information collection requirements; 
it makes corrections and updates to existing testing methodology. In 
addition, this action clarifies performance testing requirements.

C. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the RFA. In 
making this determination, the impact of concern is any significant 
adverse economic impact on small entities. An agency may certify that a 
rule will not have a significant economic impact on a substantial 
number of small entities if the rule relieves regulatory burden, has no 
net burden or otherwise has a positive economic effect on the small 
entities subject to the rule. This action will not impose emission 
measurement requirements beyond those specified in the current 
regulations, nor does it change any emission standard. We have, 
therefore, concluded that this action will have no net regulatory 
burden for all directly regulated small entities.

D. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect 
small governments. The action imposes no enforceable duty on any state, 
local or tribal governments or the private sector.

E. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects 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.

F. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action does not have tribal implications, as specified in 
Executive Order 13175. This action simply corrects and updates existing 
testing regulations. Thus, Executive Order 13175 does not apply to this 
action.

[[Page 59806]]

G. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    The EPA interprets Executive Order 13045 as applying only to those 
regulatory actions that concern environmental health or safety risks 
that the EPA has reason to believe may disproportionately affect 
children, per the definition of ``covered regulatory action'' in 
section 2-202 of the Executive Order. This action is not subject to 
Executive Order 13045 because it does not concern an environmental 
health risk or safety risk.

H. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use

    This action is not subject to Executive Order 13211, because it is 
not a significant regulatory action under Executive Order 12866.

I. National Technology Transfer and Advancement Act (NTTAA) and 1 CFR 
Part 51

    This action involves technical standards. The EPA used ASTM D6911-
15 for packaging and shipping samples in Method 30B. The ASTM D6911-15 
standard provides guidance on the selection of procedures for proper 
packaging and shipment of environmental samples to the laboratory for 
analysis to ensure compliance with appropriate regulatory programs and 
protection of sample integrity during shipment.
    The EPA used ASTM E617-13 for laboratory weights and precision mass 
standards in Methods 4, 5, 5H, 5I, 29, and 202. The ASTM E617-13 
standard covers weights and mass standards used in laboratories for 
specific classes.
    The ASTM D6911-15 and ASTM E617-13 standards were developed and 
adopted by the American Society for Testing and Materials (ASTM). These 
standards may be obtained from http://www.astm.org or from the ASTM at 
100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

J. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    The EPA believes that this action is not subject to Executive Order 
12898 (59 FR 7629, February 16, 1994) because it does not establish an 
environmental health or safety standard. This action is a technical 
correction to previously promulgated regulatory actions and does not 
have an impact on human health or the environment.

K. Congressional Review Act (CRA)

    This action is subject to the CRA, and the EPA will submit a rule 
report to each house of the Congress and to the Comptroller General of 
the United States. This action is not a ``major rule'' as defined by 5 
U.S.C. 804(2).

List of Subjects

40 CFR Part 51

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Incorporation by reference, Reporting and 
recordkeeping requirements, Volatile organic compounds.

40 CFR Part 60

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Incorporation by reference, Volatile organic 
compounds.

40 CFR Parts 61 and 63

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Reporting and recordkeeping requirements.

    Dated: August 5, 2016.
Gina McCarthy,
Administrator.

    For the reasons stated in the preamble, the Environmental 
Protection Agency amends title 40, chapter I of the Code of Federal 
Regulations as follows:

PART 51--REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF 
IMPLEMENTATION PLANS

0
1. The authority citation for part 51 continues to read as follows:

    Authority: 23 U.S.C. 101; 42 U.S.C. 7401-7671q.

0
2. Amend appendix M to part 51 as follows:
0
a. Revise section 4.0a.
0
b. Revise section 12.5, equations 8 and 9, in Method 201A.
0
c. In Method 202:
0
i. Add section 3.8.
0
ii. Revise sections 8.5.4.3 and 9.10.
0
iii. Add sections 10.3, 10.4, 11.2.2.1, 11.2.2.2, 11.2.2.3, and 
11.2.2.4.
0
iv. Add Figure 7 to section 18.0.
    The additions and revisions read as follows:

Appendix M to Part 51--Recommended Test Methods for State 
Implementation Plans

* * * * *

4.0 * * *

    a. The source owner, operator, or representative of the tested 
facility shall obtain an audit sample, if commercially available, 
from an AASP for each test method used for regulatory compliance 
purposes. No audit samples are required for the following test 
methods: Methods 3A and 3C of appendix A-3 of part 60 of this 
chapter, Methods 6C, 7E, 9, and 10 of appendix A-4 of part 60, 
Methods 18 and 19 of appendix A-6 of part 60, Methods 20, 22, and 
25A of appendix A-7 of part 60, Methods 30A and 30B of appendix A-8 
of part 60, and Methods 303, 318, 320, and 321 of appendix A of part 
63 of this chapter. If multiple sources at a single facility are 
tested during a compliance test event, only one audit sample is 
required for each method used during a compliance test. The 
compliance authority responsible for the compliance test may waive 
the requirement to include an audit sample if they believe that an 
audit sample is not necessary. ``Commercially available'' means that 
two or more independent AASPs have blind audit samples available for 
purchase. If the source owner, operator, or representative cannot 
find an audit sample for a specific method, the owner, operator, or 
representative shall consult the EPA Web site at the following URL, 
http://www.epa.gov/ttn/emc, to confirm whether there is a source 
that can supply an audit sample for that method. If the EPA Web site 
does not list an available audit sample at least 60 days prior to 
the beginning of the compliance test, the source owner, operator, or 
representative shall not be required to include an audit sample as 
part of the quality assurance program for the compliance test. When 
ordering an audit sample, the source owner, operator, or 
representative shall give the sample provider an estimate for the 
concentration of each pollutant that is emitted by the source or the 
estimated concentration of each pollutant based on the permitted 
level and the name, address, and phone number of the compliance 
authority. The source owner, operator, or representative shall 
report the results for the audit sample along with a summary of the 
emissions test results for the audited pollutant to the compliance 
authority and shall report the results of the audit sample to the 
AASP. The source owner, operator, or representative shall make both 
reports at the same time and in the same manner or shall report to 
the compliance authority first and then report to the AASP. If the 
method being audited is a method that allows the samples to be 
analyzed in the field, and the tester plans to analyze the samples 
in the field, the tester may analyze the audit samples prior to 
collecting the emission samples provided a representative of the 
compliance authority is present at the testing site. The tester may 
request and the compliance authority may grant a waiver to the 
requirement that a representative of the compliance authority must 
be present at the testing site during the field analysis of an audit 
sample. The source owner, operator, or representative may report the 
results of the audit sample to the compliance authority and then 
report the results of the audit sample to the AASP prior to 
collecting any emission samples. The test protocol and final test 
report shall document whether an audit sample was ordered and

[[Page 59807]]

utilized and the pass/fail results as applicable.
* * * * *

Method 201A--Determination of PM10 and PM2.5 
Emissions From Stationary Sources (Constant Sampling Rate Procedure)

* * * * *
    12.5 * * *
    [GRAPHIC] [TIFF OMITTED] TR30AU16.001
    
* * * * *

Method 202--Dry Impinger Method for Determining Condensable Particulate 
Emissions From Stationary Sources

* * * * *
    3.8 ASTM E617-13. ASTM E617-13 ``Standard Specification for 
Laboratory Weights and Precisions Mass Standards,'' approved May 1, 
2013, was developed and adopted by the American Society for Testing 
and Materials (ASTM). The standards cover weights and mass standards 
used in laboratories for specific classes. The ASTM E617-13 standard 
has been approved for incorporation by reference by the Director of 
the Office of the Federal Register in accordance with 5 U.S.C. 
552(a) and 1 CFR part 51. The standard may be obtained from http://www.astm.org or from the ASTM at 100 Barr Harbor Drive, P.O. Box 
C700, West Conshohocken, PA 19428-2959. All approved material is 
available for inspection at EPA WJC West Building, Room 3334, 1301 
Constitution Ave. NW., Washington, DC 20460, telephone number 202-
566-1744. It is also available for inspection 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_regulattions/ibr_locations.html.
* * * * *
    8.5.4.3 CPM Container #2, Organic rinses. Follow the water 
rinses of the back half of the filterable PM filter holder, probe 
extension, condenser, each impinger, and all of the connecting 
glassware and front half of the CPM filter with an acetone rinse. 
Recover the acetone rinse into a clean, leak-proof container labeled 
with test identification and ``CPM Container #2, Organic Rinses.'' 
Then repeat the entire rinse procedure with two rinses of hexane, 
and save the hexane rinses in the same container as the acetone 
rinse (CPM Container #2). Mark the liquid level on the jar.
* * * * *
    9.10 Field Train Recovery Blank. You must recover a minimum of 
one field train blank for each source category tested at the 
facility. You must recover the field train blank after the first or 
second run of the test. You must assemble the sampling train as it 
will be used for testing. Prior to the purge, you must add 100 ml of 
water to the first impinger and record this data on Figure 4. You 
must purge the assembled train as described in section 8.5.3. You 
must recover field train blank samples as described in section 
8.5.4. From the field sample weight, you will subtract the 
condensable particulate mass you determine with this blank train or 
0.002 g (2.0 mg), whichever is less.
* * * * *
    10.3 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' Class 6 (or better). Daily before use, 
the field balance must measure the weight within  0.5g 
of the certified mass. If the daily balance calibration check fails, 
perform corrective measures and repeat the check before using 
balance.
    10.4 Analytical Balance Calibration. Perform a multipoint 
calibration (at least five points spanning the operational range) of 
the analytical balance before the first use, and semiannually 
thereafter. The calibration of the analytical balance must be 
conducted using ASTM E617-13 ``Standard Specification for Laboratory 
Weights and Precision Mass Standards'' Class 2 (or better) tolerance 
weights. Audit the balance each day it is used for gravimetric 
measurements by weighing at least one ASTM E617-13 Class 2 tolerance 
(or better) calibration weight that corresponds to 50 to 150 percent 
of the weight of one filter or between 1g and 5g. If the scale 
cannot reproduce the value of the calibration weight to within 0.5mg 
of the certified mass, perform corrective measures, and conduct the 
multipoint calibration before use.
* * * * *
    11.2.2.1 Determine the inorganic fraction weight. Transfer the 
aqueous fraction from the extraction to a clean 500-ml or smaller 
beaker. Evaporate to no less than 10 ml liquid on a hot plate or in 
the oven at 105 [deg]C and allow to dry at room temperature (not to 
exceed 30 [deg]C (85 [deg]F)). You must ensure that water and 
volatile acids have completely evaporated before neutralizing 
nonvolatile acids in the sample. Following evaporation, desiccate 
the residue for 24 hours in a desiccator containing anhydrous 
calcium sulfate. Weigh at intervals of at least 6 hours to a 
constant weight. (See section 3.0 for a definition of constant 
weight.) Report results to the nearest 0.1 mg on the CPM Work Table 
(see Figure 6 of section 18) and proceed directly to section 11.2.3. 
If the residue cannot be weighed to constant weight, re-dissolve the 
residue in 100 ml of deionized distilled ultra-filtered water that 
contains 1 ppmw (1 mg/L) residual mass or less and continue to 
section 11.2.2.2.
    11.2.2.2 Use titration to neutralize acid in the sample and 
remove water of hydration. If used, calibrate the pH meter with the 
neutral and acid buffer solutions. Then titrate the sample with 0.1N 
NH4OH to a pH of 7.0, as indicated by the pH meter or 
colorimetric indicator. Record the volume of titrant used on the CPM 
Work Table (see Figure 6 of section 18).
    11.2.2.3 Using a hot plate or an oven at 105 [deg]C, evaporate 
the aqueous phase to approximately 10 ml. Quantitatively transfer 
the beaker contents to a clean, 50-ml pre-tared weighing tin and 
evaporate to dryness at room temperature (not to exceed 30 [deg]C 
(85 [deg]F)) and pressure in a laboratory hood. Following 
evaporation, desiccate the residue for 24 hours in a desiccator 
containing

[[Page 59808]]

anhydrous calcium sulfate. Weigh at intervals of at least 6 hours to 
a constant weight. (See section 3.0 for a definition of constant 
weight.) Report results to the nearest 0.1 mg on the CPM Work Table 
(see Figure 6 of section 18).
    11.2.2.4 Calculate the correction factor to subtract the 
NH4+ retained in the sample using Equation 1 
in section 12.
* * * * *

18.0 Tables, Diagrams, Flowcharts and Validation Data

* * * * *
BILLING CODE 6560-50-C
[GRAPHIC] [TIFF OMITTED] TR30AU16.002

BILLING CODE 6560-50-P
* * * * *

0
3. Revise sections 3.3 and 5.1.3 of appendix P to part 51 to read as 
follows:

Appendix P to Part 51--Minimum Emission Monitoring Requirements

* * * * *
    3.3 Calibration Gases. For nitrogen oxides monitoring systems 
installed on fossil fuel-fired steam generators, the pollutant gas 
used to prepare calibration gas mixtures (section 6.1, Performance 
Specification 2, appendix B, part 60 of this chapter) shall be 
nitric oxide (NO). For nitrogen oxides monitoring systems

[[Page 59809]]

installed on nitric acid plants, the pollutant gas used to prepare 
calibration gas mixtures (section 6.1, Performance Specification 2, 
appendix B, part 60 of this chapter) shall be nitrogen dioxide 
(NO2). These gases shall also be used for daily checks 
under paragraph 3.7 of this appendix as applicable. For sulfur 
dioxide monitoring systems installed on fossil fuel-fired steam 
generators or sulfuric acid plants, the pollutant gas used to 
prepare calibration gas mixtures (section 6.1, Performance 
Specification 2, appendix B, part 60 of this chapter) shall be 
sulfur dioxide (SO2). Span and zero gases should be 
traceable to National Bureau of Standards reference gases whenever 
these reference gases are available. Every 6 months from date of 
manufacture, span and zero gases shall be reanalyzed by conducting 
triplicate analyses using the reference methods in appendix A, part 
60 of this chapter as follows: for SO2, use Reference 
Method 6; for nitrogen oxides, use Reference Method 7; and for 
carbon dioxide or oxygen, use Reference Method 3. The gases may be 
analyzed at less frequent intervals if longer shelf lives are 
guaranteed by the manufacturer.
* * * * *
    5.1.3 The values used in the equations under paragraph 5.1 are 
derived as follows:
    E = pollutant emission, g/million cal (lb/million BTU),
    C = pollutant concentration, g/dscm (lb/dscf), determined by 
multiplying the average concentration (ppm) for each hourly period 
by 4.16 x 10-5 M g/dscm per ppm (2.64 x 10-9 M 
lb/dscf per ppm) where M = pollutant molecular weight, g/g-mole (lb/
lb-mole). M = 64 for sulfur dioxide and 46 for oxides of nitrogen.
    %O2, %CO2 = Oxygen or carbon dioxide 
volume (expressed as percent) determined with equipment specified 
under paragraphs 3.1.4 and 3.1.5 of this appendix.
* * * * *

PART 60--STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES

0
4. The authority citation for part 60 continues to read as follows:

    Authority: 42 U.S.C. 7401 et. seq.

0
5. In Sec.  60.8, revise paragraph (f) to read as follows:

Sec.  60.8   Performance tests.

* * * * *
    (f) Unless otherwise specified in the applicable subpart, each 
performance test shall consist of three separate runs using the 
applicable test method.
    (1) Each run shall be conducted for the time and under the 
conditions specified in the applicable standard. For the purpose of 
determining compliance with an applicable standard, the arithmetic 
means of results of the three runs shall apply. In the event that a 
sample is accidentally lost or conditions occur in which one of the 
three runs must be discontinued because of forced shutdown, failure of 
an irreplaceable portion of the sample train, extreme meteorological 
conditions, or other circumstances, beyond the owner or operator's 
control, compliance may, upon the Administrator's approval, be 
determined using the arithmetic mean of the results of the two other 
runs.
    (2) Contents of report (electronic or paper submitted copy). Unless 
otherwise specified in a relevant standard or test method, or as 
otherwise approved by the Administrator in writing, the report for a 
performance test shall include the elements identified in paragraphs 
(f)(2)(i) through (vi) of this section.
    (i) General identification information for the facility including a 
mailing address, the physical address, the owner or operator or 
responsible official (where applicable) and his/her email address, and 
the appropriate Federal Registry System (FRS) number for the facility.
    (ii) Purpose of the test including the applicable regulation(s) 
requiring the test, the pollutant(s) and other parameters being 
measured, the applicable emission standard and any process parameter 
component, and a brief process description.
    (iii) Description of the emission unit tested including fuel 
burned, control devices, and vent characteristics; the appropriate 
source classification code (SCC); the permitted maximum process rate 
(where applicable); and the sampling location.
    (iv) Description of sampling and analysis procedures used and any 
modifications to standard procedures, quality assurance procedures and 
results, record of process operating conditions that demonstrate the 
applicable test conditions are met, and values for any operating 
parameters for which limits were being set during the test.
    (v) Where a test method requires you record or report, the 
following shall be included: Record of preparation of standards, record 
of calibrations, raw data sheets for field sampling, raw data sheets 
for field and laboratory analyses, chain-of-custody documentation, and 
example calculations for reported results.
    (vi) Identification of the company conducting the performance test 
including the primary office address, telephone number, and the contact 
for this test program including his/her email address.
* * * * *

0
6. In Sec.  60.17:
0
a. Revise paragraph (h)(180).
0
b. Redesignate paragraphs (h)(200) through (h)(206) as paragraphs 
(h)(202) through (h)(208).
0
c. Redesignate paragraphs (h)(190) through (h)(199) as (h)(191) through 
(h)(200).
0
d. Add new paragraphs (h)(190) and (h)(201).
    The additions and revisions read as follows:

Sec.  60.17  Incorporations by reference.

* * * * *
    (h) * * *
    (180) ASTM D6348-03, Standard Test Method for Determination of 
Gaseous Compounds by Extractive Direct Interface Fourier Transform 
Infrared (FTIR) Spectroscopy, (Approved October 1, 2003), IBR approved 
for Sec.  60.73a(b), table 7 to subpart IIII, table 2 to subpart JJJJ, 
and Sec.  60.4245(d).
* * * * *
    (190) ASTM D6911-15, Standard Guide for Packaging and Shipping 
Environmental Samples for Laboratory Analysis, approved January 15, 
2015, IBR approved for appendix A-8: Method 30B.
* * * * *
    (201) ASTM E617-13, Standard Specification for Laboratory Weights 
and Precision Mass Standards, approved May 1, 2013, IBR approved for 
appendix A-3: Methods 4, 5, 5H, 5I, and appendix A-8: Method 29.
* * * * *

Subpart JJJJ--Standards of Performance for Stationary Spark 
Ignition Internal Combustion Engines

0
7. Revise Sec.  60.4245(d) to read as follows:

Sec.  60.4245  What are my notification, reporting, and recordkeeping 
requirements if I am an owner or operator of a stationary SI internal 
combustion engine?

* * * * *
    (d) Owners and operators of stationary SI ICE that are subject to 
performance testing must submit a copy of each performance test as 
conducted in Sec.  60.4244 within 60 days after the test has been 
completed. Performance test reports using EPA Method 18, EPA Method 
320, or ASTM D6348-03 (incorporated by reference--see 40 CFR 60.17) to 
measure VOC require reporting of all QA/QC data. For Method 18, report 
results from sections 8.4 and 11.1.1.4; for Method 320, report results 
from sections 8.6.2, 9.0, and 13.0; and for ASTM D6348-03 report 
results of all QA/QC procedures in Annexes 1-7.
* * * * *

0
8. Revise Table 2 to subpart JJJJ of part 60 to read as follows:

[[Page 59810]]

                     Table 2 to Subpart JJJJ of Part 60--Requirements for Performance Tests
  [As stated in Sec.   60.4244, you must comply with the following requirements for performance tests within 10
                          percent of 100 percent peak (or the highest achievable) load]
----------------------------------------------------------------------------------------------------------------
                                   Complying with
            For each              the requirement        You must            Using           According to the
                                         to                                               following requirements
----------------------------------------------------------------------------------------------------------------
1. Stationary SI internal        a. limit the       i. Select the      (1) Method 1 or    (a) Alternatively, for
 combustion engine                concentration of   sampling port      1A of 40 CFR       NOX, O2, and moisture
 demonstrating compliance         NOX in the         location and the   part 60,           measurement, ducts
 according to Sec.   60.4244.     stationary SI      number/location    appendix A-1, if   <=6 inches in
                                  internal           of traverse        measuring flow     diameter may be
                                  combustion         points at the      rate.              sampled at a single
                                  engine exhaust.    exhaust of the                        point located at the
                                                     stationary                            duct centroid and
                                                     internal                              ducts >6 and <=12
                                                     combustion                            inches in diameter
                                                     engine;.                              may be sampled at 3
                                                                                           traverse points
                                                                                           located at 16.7,
                                                                                           50.0, and 83.3% of
                                                                                           the measurement line
                                                                                           (`3-point long
                                                                                           line'). If the duct
                                                                                           is >12 inches in
                                                                                           diameter and the
                                                                                           sampling port
                                                                                           location meets the
                                                                                           two and half-diameter
                                                                                           criterion of Section
                                                                                           11.1.1 of Method 1 of
                                                                                           40 CFR part 60,
                                                                                           Appendix A, the duct
                                                                                           may be sampled at `3-
                                                                                           point long line';
                                                                                           otherwise, conduct
                                                                                           the stratification
                                                                                           testing and select
                                                                                           sampling points
                                                                                           according to Section
                                                                                           8.1.2 of Method 7E of
                                                                                           40 CFR part 60,
                                                                                           Appendix A.
                                                    ii. Determine the  (2) Method 3, 3A,  (b) Measurements to
                                                     O2 concentration   or 3B b of 40      determine O2
                                                     of the             CFR part 60,       concentration must be
                                                     stationary         appendix A-2 or    made at the same time
                                                     internal           ASTM Method        as the measurements
                                                     combustion         D6522-00           for NOX
                                                     engine exhaust     (Reapproved        concentration.
                                                     at the sampling    2005) a d.
                                                     port location;.
                                                    iii. If            (3) Method 2 or
                                                     necessary,         2C of 40 CFR
                                                     determine the      part 60,
                                                     exhaust flowrate   appendix A-1 or
                                                     of the             Method 19 of 40
                                                     stationary         CFR part 60,
                                                     internal           appendix A-7.
                                                     combustion
                                                     engine exhaust;.
                                                    iv. If necessary,  (4) Method 4 of    (c) Measurements to
                                                     measure moisture   40 CFR part 60,    determine moisture
                                                     content of the     appendix A-3,      must be made at the
                                                     stationary         Method 320 of 40   same time as the
                                                     internal           CFR part 63,       measurement for NOX
                                                     combustion         appendix A e, or   concentration.
                                                     engine exhaust     ASTM Method
                                                     at the sampling    D6348-03 d e.
                                                     port location;
                                                     and.
                                                    v. Measure NOX at  (5) Method 7E of   (d) Results of this
                                                     the exhaust of     40 CFR part 60,    test consist of the
                                                     the stationary     appendix A-4,      average of the three
                                                     internal           ASTM Method        1-hour or longer
                                                     combustion         D6522-00           runs.
                                                     engine; if using   (Reapproved
                                                     a control          2005) a d,
                                                     device, the        Method 320 of 40
                                                     sampling site      CFR part 63,
                                                     must be located    appendix A e, or
                                                     at the outlet of   ASTM Method
                                                     the control        D6348-03 d e.
                                                     device.
                                 b. limit the       i. Select the      (1) Method 1 or    (a) Alternatively, for
                                  concentration of   sampling port      1A of 40 CFR       CO, O2, and moisture
                                  CO in the          location and the   part 60,           measurement, ducts
                                  stationary SI      number/location    appendix A-1, if   <=6 inches in
                                  internal           of traverse        measuring flow     diameter may be
                                  combustion         points at the      rate.              sampled at a single
                                  engine exhaust.    exhaust of the                        point located at the
                                                     stationary                            duct centroid and
                                                     internal                              ducts >6 and <=12
                                                     combustion                            inches in diameter
                                                     engine;.                              may be sampled at 3
                                                                                           traverse points
                                                                                           located at 16.7,
                                                                                           50.0, and 83.3% of
                                                                                           the measurement line
                                                                                           (`3-point long
                                                                                           line'). If the duct
                                                                                           is >12 inches in
                                                                                           diameter and the
                                                                                           sampling port
                                                                                           location meets the
                                                                                           two and half-diameter
                                                                                           criterion of Section
                                                                                           11.1.1 of Method 1 of
                                                                                           40 CFR part 60,
                                                                                           Appendix A, the duct
                                                                                           may be sampled at `3-
                                                                                           point long line';
                                                                                           otherwise, conduct
                                                                                           the stratification
                                                                                           testing and select
                                                                                           sampling points
                                                                                           according to Section
                                                                                           8.1.2 of Method 7E of
                                                                                           40 CFR part 60,
                                                                                           Appendix A.

[[Page 59811]]

 
                                                    ii. Determine the  (2) Method 3, 3A,  (b) Measurements to
                                                     O2 concentration   or 3B b of 40      determine O2
                                                     of the             CFR part 60,       concentration must be
                                                     stationary         appendix A-2 or    made at the same time
                                                     internal           ASTM Method        as the measurements
                                                     combustion         D6522-00           for CO concentration.
                                                     engine exhaust     (Reapproved
                                                     at the sampling    2005) a d.
                                                     port location;.
                                                    iii. If            (3) Method 2 or
                                                     necessary,         2C of 40 CFR 60,
                                                     determine the      appendix A-1 or
                                                     exhaust flowrate   Method 19 of 40
                                                     of the             CFR part 60,
                                                     stationary         appendix A-7.
                                                     internal
                                                     combustion
                                                     engine exhaust;.
                                                    iv. If necessary,  (4) Method 4 of    (c) Measurements to
                                                     measure moisture   40 CFR part 60,    determine moisture
                                                     content of the     appendix A-3,      must be made at the
                                                     stationary         Method 320 of 40   same time as the
                                                     internal           CFR part 63,       measurement for CO
                                                     combustion         appendix A e, or   concentration.
                                                     engine exhaust     ASTM Method
                                                     at the sampling    D6348-03 d e.
                                                     port location;
                                                     and.
                                                    v. Measure CO at   (5) Method 10 of   (d) Results of this
                                                     the exhaust of     40 CFR part 60,    test consist of the
                                                     the stationary     appendix A4,       average of the three
                                                     internal           ASTM Method        1-hour or longer
                                                     combustion         D6522-00           runs.
                                                     engine; if using   (Reapproved
                                                     a control          2005) a d e,
                                                     device, the        Method 320 of 40
                                                     sampling site      CFR part 63,
                                                     must be located    appendix A \e\,
                                                     at the outlet of   or ASTM Method
                                                     the control        D6348-03 d e.
                                                     device.
                                 c. limit the       i. Select the      (1) Method 1 or    (a) Alternatively, for
                                  concentration of   sampling port      1A of 40 CFR       VOC, O2, and moisture
                                  VOC in the         location and the   part 60,           measurement, ducts
                                  stationary SI      number/location    appendix A-1, if   <=6 inches in
                                  internal           of traverse        measuring flow     diameter may be
                                  combustion         points at the      rate.              sampled at a single
                                  engine exhaust.    exhaust of the                        point located at the
                                                     stationary                            duct centroid and
                                                     internal                              ducts >6 and <=12
                                                     combustion                            inches in diameter
                                                     engine;.                              may be sampled at 3
                                                                                           traverse points
                                                                                           located at 16.7,
                                                                                           50.0, and 83.3% of
                                                                                           the measurement line
                                                                                           (`3-point long
                                                                                           line'). If the duct
                                                                                           is >12 inches in
                                                                                           diameter and the
                                                                                           sampling port
                                                                                           location meets the
                                                                                           two and half-diameter
                                                                                           criterion of Section
                                                                                           11.1.1 of Method 1 of
                                                                                           40 CFR part 60,
                                                                                           Appendix A, the duct
                                                                                           may be sampled at `3-
                                                                                           point long line';
                                                                                           otherwise, conduct
                                                                                           the stratification
                                                                                           testing and select
                                                                                           sampling points
                                                                                           according to Section
                                                                                           8.1.2 of Method 7E of
                                                                                           40 CFR part 60,
                                                                                           Appendix A.
                                                    ii. Determine the  (2) Method 3, 3A,  (b) Measurements to
                                                     O2 concentration   or 3B b of 40      determine O2
                                                     of the             CFR part 60,       concentration must be
                                                     stationary         appendix A-2 or    made at the same time
                                                     internal           ASTM Method        as the measurements
                                                     combustion         D6522-00           for VOC
                                                     engine exhaust     (Reapproved        concentration.
                                                     at the sampling    2005) a d.
                                                     port location;.
                                                    iii. If            (3) Method 2 or
                                                     necessary,         2C of 40 CFR 60,
                                                     determine the      appendix A-1 or
                                                     exhaust flowrate   Method 19 of 40
                                                     of the             CFR part 60,
                                                     stationary         appendix A-7.
                                                     internal
                                                     combustion
                                                     engine exhaust;.
                                                    iv. If necessary,  (4) Method 4 of    (c) Measurements to
                                                     measure moisture   40 CFR part 60,    determine moisture
                                                     content of the     appendix A-3,      must be made at the
                                                     stationary         Method 320 of 40   same time as the
                                                     internal           CFR part 63,       measurement for VOC
                                                     combustion         appendix A e, or   concentration.
                                                     engine exhaust     ASTM Method
                                                     at the sampling    D6348-03 d e.
                                                     port location;
                                                     and.

[[Page 59812]]

 
                                                    v. Measure VOC at  (5) Methods 25A    (d) Results of this
                                                     the exhaust of     and 18 of 40 CFR   test consist of the
                                                     the stationary     part 60,           average of the three
                                                     internal           appendices A-6     1-hour or longer
                                                     combustion         and A-7, Method    runs.
                                                     engine; if using   25A with the use
                                                     a control          of a hydrocarbon
                                                     device, the        cutter as
                                                     sampling site      described in 40
                                                     must be located    CFR 1065.265,
                                                     at the outlet of   Method 18 of 40
                                                     the control        CFR part 60,
                                                     device.            appendix A-6 c
                                                                        e, Method 320 of
                                                                        40 CFR part 63,
                                                                        appendix A e, or
                                                                        ASTM Method
                                                                        D6348-03 d e.
----------------------------------------------------------------------------------------------------------------
a Also, you may petition the Administrator for approval to use alternative methods for portable analyzer.
b You may use ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses, for measuring the O2 content of the exhaust
  gas as an alternative to EPA Method 3B. AMSE PTC 19.10-1981 incorporated by reference, see 40 CFR 60.17
c You may use EPA Method 18 of 40 CFR part 60, appendix A-6, provided that you conduct an adequate pre-survey
  test prior to the emissions test, such as the one described in OTM 11 on EPA's Web site (http://www.epa.gov/ttn/emc/prelim/otm11.pdf).
d Incorporated by reference; see 40 CFR 60.17.
e You must meet the requirements in Sec.   60.4245(d).

0
9. In appendix A-1 to part 60:
0
a. Revise section 11.2.1.2 in Method 1.
0
b. Remove Figure 1-2 in section 17.0 after the table entitled ``Table 
1-1 Cross-Section Layout for Rectangular Stacks'' in Method 1.
0
c. Revise sections 6.7, 10.1.2.3, 10.1.3.4, 10.1.3.7, 10.1.4.1.3, 
10.1.4.3, and Figure 2-10 in section 17.0 in Method 2.
    The revisions read as follows:

Appendix A-1 to Part 60--Test Methods 1 Through 2F

* * * * *

Method 1-Sample and Velocity Traverses for Stationary Sources

* * * * *
    11.2.1.2 When the eight- and two-diameter criterion cannot be 
met, the minimum number of traverse points is determined from Figure 
1-1. Before referring to the figure, however, determine the 
distances from the measurement site to the nearest upstream and 
downstream disturbances, and divide each distance by the stack 
diameter or equivalent diameter, to determine the distance in terms 
of the number of duct diameters. Then, determine from Figure 1-1 the 
minimum number of traverse points that corresponds:
    (1) To the number of duct diameters upstream; and
    (2) To the number of diameters downstream. Select the higher of 
the two minimum numbers of traverse points, or a greater value, so 
that for circular stacks, the number is a multiple of 4, and for 
rectangular stacks, the number is one of those shown in Table 1-1.
* * * * *

Method 2--Determination of Stack Gas Velocity and Volumetric Flow Rate 
(Type S Pitot Tube)

* * * * *
    6.7 Calibration Pitot Tube. Calibration of the Type S pitot tube 
requires a standard pitot tube for a reference. When calibration of 
the Type S pitot tube is necessary (see Section 10.1), a standard 
pitot tube shall be used for a reference. The standard pitot tube 
shall, preferably, have a known coefficient, obtained directly from 
the National Institute of Standards and Technology (NIST), 
Gaithersburg, MD 20899, (301) 975-2002; or by calibration against 
another standard pitot tube with a NIST-traceable coefficient. 
Alternatively, a standard pitot tube designed according to the 
criteria given in sections 6.7.1 through 6.7.5 below and illustrated 
in Figure 2-5 (see also References 7, 8, and 17 in section 17.0) may 
be used. Pitot tubes designed according to these specifications will 
have baseline coefficients of 0.99 0.01.
* * * * *
    10.1.2.3 The flow system shall have the capacity to generate a 
test-section velocity around 910 m/min (3,000 ft/min). This velocity 
must be constant with time to guarantee constant and steady flow 
during the entire period of calibration. A centrifugal fan is 
recommended for this purpose, as no flow rate adjustment for back 
pressure of the fan is allowed during the calibration process. Note 
that Type S pitot tube coefficients obtained by single-velocity 
calibration at 910 m/min (3,000 ft/min) will generally be valid to 
3 percent for the measurement of velocities above 300 m/
min (1,000 ft/min) and to 6 percent for the measurement 
of velocities between 180 and 300 m/min (600 and 1,000 ft/min). If a 
more precise correlation between the pitot tube coefficient (Cp) and 
velocity is desired, the flow system should have the capacity to 
generate at least four distinct, time-invariant test-section 
velocities covering the velocity range from 180 to 1,500 m/min (600 
to 5,000 ft/min), and calibration data shall be taken at regular 
velocity intervals over this range (see References 9 and 14 in 
section 17.0 for details).
* * * * *
    10.1.3.4 Read [Delta]pstd, and record its value in a 
data table similar to the one shown in Figure 2-9. Remove the 
standard pitot tube from the duct, and disconnect it from the 
manometer. Seal the standard entry port. Make no adjustment to the 
fan speed or other wind tunnel volumetric flow control device 
between this reading and the corresponding Type S pitot reading.
* * * * *
    10.1.3.7 Repeat Steps 10.1.3.3 through 10.1.3.6 until three 
pairs of [Delta]p readings have been obtained for the A side of the 
Type S pitot tube, with all the paired observations conducted at a 
constant fan speed (no changes to fan velocity between observed 
readings).
* * * * *
    10.1.4.1.3 For Type S pitot tube combinations with complete 
probe assemblies, the calibration point should be located at or near 
the center of the duct; however, insertion of a probe sheath into a 
small duct may cause significant cross-sectional area interference 
and blockage and yield incorrect coefficient values (Reference 9 in 
section 17.0). Therefore, to minimize the blockage effect, the 
calibration point may be a few inches off-center if necessary, but 
no closer to the outer wall of the wind tunnel than 4 inches. The 
maximum allowable blockage, as determined by a projected-area model 
of the probe sheath, is 2 percent or less of the duct cross-
sectional area (Figure

[[Page 59813]]

2-10a). If the pitot and/or probe assembly blocks more than 2 
percent of the cross-sectional area at an insertion point only 4 
inches inside the wind tunnel, the diameter of the wind tunnel must 
be increased.
* * * * *
    10.1.4.3 For a probe assembly constructed such that its pitot 
tube is always used in the same orientation, only one side of the 
pitot tube needs to be calibrated (the side which will face the 
flow). The pitot tube must still meet the alignment specifications 
of Figure 2-2 or 2-3, however, and must have an average deviation 
([sigma]) value of 0.01 or less (see section 12.4.4).
* * * * *

17.0 Tables, Diagrams, Flowcharts, and Validation Data

* * * * *
[GRAPHIC] [TIFF OMITTED] TR30AU16.003

* * * * *

0
10. In appendix A-2 to part 60:
0
a. Revise sections 6.11.1, 6.11.2, 10.6.6, and 10.6.8 in Method 2G.
0
b. Revise section 6.3 in Method 3C.
0
c. Add sections 6.3.1, 6.3.2, 6.3.3, 6.3.4, and 6.3.5 in Method 3C.
    The revisions and additions read as follows:

Appendix A-2 to Part 60--Test Methods 2G Through 3C

* * * * *

Method 2G--Determination of Stack Gas Velocity and Volumetric Flow Rate 
With Two-Dimensional Probes

* * * * *
    6.11.1 Test section cross-sectional area. The flowing gas stream 
shall be confined within a circular, rectangular, or elliptical 
duct. The cross-sectional area of the tunnel must be large enough to 
ensure fully developed flow in the presence of both the calibration 
pitot tube and the tested probe. The calibration site, or ``test 
section,'' of the wind tunnel shall have a minimum diameter of 30.5 
cm (12 in.) for circular or elliptical duct cross-sections or a 
minimum width of 30.5 cm (12 in.) on the shorter side for 
rectangular cross-sections. Wind tunnels shall meet the probe 
blockage provisions of this section and the qualification 
requirements prescribed in section 10.1. The projected area of the 
portion of the probe head, shaft, and attached devices inside the 
wind tunnel during calibration shall represent no more than 2 
percent of the cross-sectional area of the tunnel. If the pitot and/
or probe assembly blocks more than 2 percent of the cross-sectional 
area at an insertion point only 4 inches inside the wind tunnel, the 
diameter of the wind tunnel must be increased.
    6.11.2 Velocity range and stability. The wind tunnel should be 
capable of achieving and maintaining a constant and steady velocity 
between 6.1 m/sec and 30.5 m/sec (20 ft/sec and 100 ft/sec) for the 
entire calibration period for each selected calibration velocity. 
The wind tunnel shall produce fully developed flow patterns that are 
stable and parallel to the axis of the duct in the test section.
* * * * *
    10.6.6 Read the differential pressure from the calibration pitot 
tube ([Delta]Pstd), and record its value. Read the 
barometric pressure to within 2.5 mm Hg (0.1 
in. Hg) and the temperature in the wind tunnel to within 0.6 [deg]C 
(1 [deg]F). Record these values on a data form similar to Table 2G-
8. Record the rotational speed of the fan or indicator of wind 
tunnel velocity control (damper setting, variac rheostat, etc.) and 
make no adjustment to fan speed or wind tunnel velocity control 
between this observation and the Type S probe reading.
* * * * *
    10.6.8 Take paired differential pressure measurements with the 
calibration pitot tube and tested probe (according to sections 
10.6.6 and 10.6.7). The paired measurements in each replicate can be 
made either simultaneously (i.e., with both probes in the wind 
tunnel) or by alternating the measurements of the two probes (i.e., 
with only one probe at a time in the wind tunnel). Adjustments made 
to the fan speed or other changes to the system designed to change 
the air flow velocity of the wind tunnel between observation of the 
calibration pitot tube ([Delta]Pstd) and the Type S pitot 
tube invalidates the reading and the observation must be repeated.
* * * * *

Method 3C--Determination of Carbon Dioxide, Methane, Nitrogen, and 
Oxygen From Stationary Sources

* * * * *

[[Page 59814]]

    6.3 Analyzer Linearity Check and Calibration. Perform this test 
before sample analysis.
    6.3.1 Using the gas mixtures in section 5.1, verify the detector 
linearity over the range of suspected sample concentrations with at 
least three concentrations per compound of interest. This initial 
check may also serve as the initial instrument calibration.
    6.3.2 You may extend the use of the analyzer calibration by 
performing a single-point calibration verification. Calibration 
verifications shall be performed by triplicate injections of a 
single-point standard gas. The concentration of the single-point 
calibration must either be at the midpoint of the calibration curve 
or at approximately the source emission concentration measured 
during operation of the analyzer.
    6.3.3 Triplicate injections must agree within 5 percent of their 
mean, and the average calibration verification point must agree 
within 10 percent of the initial calibration response factor. If 
these calibration verification criteria are not met, the initial 
calibration described in section 6.3.1, using at least three 
concentrations, must be repeated before analysis of samples can 
continue.
    6.3.4 For each instrument calibration, record the carrier and 
detector flow rates, detector filament and block temperatures, 
attenuation factor, injection time, chart speed, sample loop volume, 
and component concentrations.
    6.3.5 Plot a linear regression of the standard concentrations 
versus area values to obtain the response factor of each compound. 
Alternatively, response factors of uncorrected component 
concentrations (wet basis) may be generated using instrumental 
integration.

    Note: Peak height may be used instead of peak area throughout 
this method.

* * * * *

0
11. In appendix A-3 to part 60:
0
a. Add sections 10.3 and 12.2.5 in Method 4.
0
b. Revise section 16.4 in Method 4.
0
c. Revise sections 6.1.1.9 and 8.7.6.2.5 in Method 5.
0
d. Add sections 10.7 and 10.8 in Method 5.
0
e. Add sections 10.4 and 10.5 in Method 5H.
0
f. Add sections 10.1 and 10.2 in Method 5I.
    The revisions and additions read as follows:

Appendix A-3 to Part 60-Test Methods 4 Through 5I

* * * * *

Method 4--Determination of Moisture Content in Stack Gases

* * * * *
    10.3 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' (incorporated by reference-see 40 CFR 
60.17) Class 6 (or better). Daily, before use, the field balance 
must measure the weight within  0.5g of the certified 
mass. If the daily balance calibration check fails, perform 
corrective measures and repeat the check before using balance.
* * * * *
    12.2.5 Using F-factors to determine approximate moisture for 
estimating moisture content where no wet scrubber is being used, for 
the purpose of determining isokinetic sampling rate settings with no 
fuel sample, is acceptable using the average Fc or 
Fd factor from Method 19 (see Method 19, section 12.3.1). 
If this option is selected, calculate the approximate moisture as 
follows:

Bws = BH + BA+ BF

Where:

BA = Mole Fraction of moisture in the ambient air.
[GRAPHIC] [TIFF OMITTED] TR30AU16.004

Bws = Mole fraction of moisture in the stack gas.
Fd = Volume of dry combustion components per unit of heat 
content at 0 percent oxygen, dscf/10\6\.
    Btu (scm/J). See Table 19-2 in Method 19.
Fw = Volume of wet combustion components per unit of heat 
content at 0 percent oxygen, wet.
    scf/10\6\ Btu (scm/J). See Table 19-2 in Method 19.
%RH = Percent relative humidity (calibrated hygrometer acceptable), 
percent.
PBar = Barometric pressure, in. Hg.
T = Ambient temperature, [deg]F.
W = Percent free water by weight, percent.
O2 = Percent oxygen in stack gas, dry basis, percent.
* * * * *
    16.4 Using F-factors to determine moisture is an acceptable 
alternative to Method 4 for a combustion stack not using a scrubber, 
and where a fuel sample is taken during the test run and analyzed 
for development of an Fd factor (see Method 19, section 
12.3.2), and where stack O2 content is measured by Method 
3A or 3B during each test run. If this option is selected, calculate 
the moisture content as follows:

Bws = BH + BA + BF

Where:

BA = Mole fraction of moisture in the ambient air.

[[Page 59815]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.005

    Note: Values of BA should be between 0.00 and 0.06 
with common values being about 0.015.

BF = Mole fraction of moisture from free water in the 
fuel.
[GRAPHIC] [TIFF OMITTED] TR30AU16.006

    Note: Free water in fuel is minimal for distillate oil and 
gases, such as propane and natural gas, so this step may be omitted 
for those fuels.

BH = Mole fraction of moisture from the hydrogen in the 
fuel.
[GRAPHIC] [TIFF OMITTED] TR30AU16.007

Bws = Mole fraction of moisture in the stack gas.
Fd = Volume of dry combustion components per unit of heat 
content at 0 percent oxygen, dscf/10\6\ Btu (scm/J). Develop a test 
specific Fd value using an integrated fuel sample from 
each test run and Equation 19-13 in section 12.3.2 of Method 19.
Fw = Volume of wet combustion components per unit of heat 
content at 0 percent oxygen, wet scf/10\6\ Btu (scm/J). Develop a 
test specific Fw value using an integrated fuel sample 
from each test run and Equation 19-14 in section 12.3.2 of Method 
19.
%RH = Percent relative humidity (calibrated hygrometer acceptable), 
percent.
PBar = Barometric pressure, in. Hg.
T = Ambient temperature, [deg]F.
W = Percent free water by weight, percent.
O2 = Percent oxygen in stack gas, dry basis, percent.
* * * * *

Method 5--Determination of Particulate Matter Emissions From Stationary 
Sources

* * * * *
    6.1.1.9 Metering System. Vacuum gauge, leak-free pump, 
calibrated temperature sensors, dry gas meter (DGM) capable of 
measuring volume to within 2 percent, and related equipment, as 
shown in Figure 5-1. Other metering systems capable of maintaining 
sampling rates within 10 percent of isokinetic and of determining 
sample volumes to within 2 percent may be used, subject to the 
approval of the Administrator. When the metering system is used in 
conjunction with a pitot tube, the system shall allow periodic 
checks of isokinetic rates.
* * * * *
    8.7.6.2.5 Clean the inside of the front half of the filter 
holder by rubbing the surfaces with a Nylon bristle brush and 
rinsing with acetone. Rinse each surface three times or more if 
needed to remove visible particulate. Make a final rinse of the 
brush and filter holder. Carefully rinse out the glass cyclone, also 
(if applicable). After all acetone washings and particulate matter 
have been collected in the sample container, tighten the lid on the 
sample container so that acetone will not leak out when it is 
shipped to the laboratory. Mark the height of the fluid level to 
allow determination of whether leakage occurred during transport. 
Label the container to clearly identify its contents.
* * * * *
    10.7 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' (incorporated by reference--see 40 CFR 
60.17) Class 6 (or better). Daily before use, the field balance must 
measure the weight within 0.5g of the certified mass. If 
the daily balance calibration check fails, perform corrective 
measures and repeat the check before using balance.
    10.8 Analytical Balance Calibration. Perform a multipoint 
calibration (at least five points spanning the operational range) of 
the analytical balance before the first use, and semiannually 
thereafter. The calibration of the analytical balance must be 
conducted using ASTM E617-13 ``Standard Specification for Laboratory 
Weights and Precision Mass Standards'' (incorporated by reference--
see 40 CFR 60.17) Class 2 (or better) tolerance weights. Audit the 
balance each day it is used for gravimetric measurements by weighing 
at least one ASTM E617-13 Class 2 tolerance (or better) calibration 
weight that corresponds to 50 to 150 percent of the weight of one 
filter or between 1g and 5g. If the scale cannot reproduce the value 
of the calibration weight to within 0.5 mg of the certified mass, 
perform corrective measures, and conduct the multipoint calibration 
before use.
* * * * *

Method 5H--Determination of Particulate Matter Emissions From Wood 
Heaters From a Stack Location

* * * * *
    10.4 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' (incorporated by reference--see 40 CFR 
60.17) Class 6 (or better). Daily before use, the field balance must 
measure the weight within  0.5g of the certified mass. 
If the daily balance calibration check fails, perform corrective 
measures and repeat the check before using balance.
    10.5 Analytical Balance Calibration. Perform a multipoint 
calibration (at least five points spanning the operational range) of 
the analytical balance before the first use, and semiannually 
thereafter. The calibration of the analytical balance must be 
conducted using ASTM E617-13 ``Standard Specification for Laboratory 
Weights and Precision Mass Standards'' (incorporated by reference--
see 40 CFR 60.17) Class 2 (or better) tolerance weights. Audit the 
balance each day it is used for gravimetric measurements by weighing 
at least one ASTM E617-13 Class 2 tolerance (or better) calibration 
weight that corresponds to 50 to 150 percent of the weight of one 
filter or between 1g and 5g. If the scale cannot reproduce the value 
of the calibration weight to within 0.5 mg of the certified mass, 
perform corrective measures, and conduct the multipoint calibration 
before use.
* * * * *

Method 5I--Determination of Low Level Particulate Matter Emissions From 
Stationary Sources

* * * * *
    10.1 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' (incorporated by reference--see 40 CFR 
60.17) Class 6 (or better). Daily, before use, the field balance 
must measure the weight within 0.5g of the certified 
mass. If the daily balance calibration check fails, perform 
corrective measures and repeat the check before using balance.
    10.2 Analytical Balance Calibration. Perform a multipoint 
calibration (at least five points spanning the operational range) of 
the analytical balance before the first use, and semiannually 
thereafter. The calibration of the analytical balance must be 
conducted using ASTM E617-13 ``Standard Specification for Laboratory 
Weights and Precision Mass Standards'' (incorporated by reference--
see 40 CFR 60.17) Class 2 (or better) tolerance weights. Audit the 
balance each day it is used for gravimetric measurements by weighing 
at least one ASTM E617-13 Class 2 tolerance (or better) calibration 
weight that corresponds to 50 to 150 percent of the weight of one 
filter or

[[Page 59816]]

between 1g and 5g. If the scale cannot reproduce the value of the 
calibration weight to within 0.5 mg of the certified mass, perform 
corrective measures and conduct the multipoint calibration before 
use.
* * * * *

0
12. In appendix A-4 to part 60:
0
a. Revise section 8.3 in Method 6C.
0
b. Revise sections 8.1.2, 8.2.7, and 12.8 in Method 7E.
0
c. Revise sections 6.2.5 and 8.4.2 in Method 10.
0
d. Add section 6.2.6 in Method 10.
0
e. Revise sections 6.1.6, 6.1.7, 6.1.8, 6.1.9, 6.1.10, 8.1, 8.2.1 and 
8.2.3 in Method 10A.
0
f. Add section 6.1.11 in Method 10A.
0
g. Revise section 6.1 in Method 10B.
    The revisions and additions read as follows:

Appendix A-4 to Part 60--Test Methods 6 Through 10B

* * * * *

Method 6C--Determination of Sulfur Dioxide Emissions From Stationary 
Sources (Instrumental Analyzer Procedure)

* * * * *
    8.3 Interference Check. You must follow the procedures of 
section 8.2.7 of Method 7E to conduct an interference check, 
substituting SO2 for NOX as the method 
pollutant. For dilution-type measurement systems, you must use the 
alternative interference check procedure in section 16 and a co-
located, unmodified Method 6 sampling train.
* * * * *

Method 7E--Determination of Nitrogen Oxides Emissions From Stationary 
Sources (Instrumental Analyzer Procedure)

* * * * *
    8.1.2 Determination of Stratification. Perform a stratification 
test at each test site to determine the appropriate number of sample 
traverse points. If testing for multiple pollutants or diluents at 
the same site, a stratification test using only one pollutant or 
diluent satisfies this requirement. A stratification test is not 
required for small stacks that are less than 4 inches in diameter. 
To test for stratification, use a probe of appropriate length to 
measure the NOX (or pollutant of interest) concentration 
at 12 traverse points located according to Table 1-1 or Table 1-2 of 
Method 1. Alternatively, you may measure at three points on a line 
passing through the centroidal area. Space the three points at 16.7, 
50.0, and 83.3 percent of the measurement line. Sample for a minimum 
of twice the system response time (see section 8.2.6) at each 
traverse point. Calculate the individual point and mean 
NOX concentrations. If the concentration at each traverse 
point differs from the mean concentration for all traverse points by 
no more than: 5.0 percent of the mean concentration; or 
0.5 ppm (whichever is less restrictive), the gas stream 
is considered unstratified, and you may collect samples from a 
single point that most closely matches the mean. If the 5.0 percent 
or 0.5 ppm criterion is not met, but the concentration at each 
traverse point differs from the mean concentration for all traverse 
points by not more than: 10.0 percent of the mean 
concentration; or 1.0 ppm (whichever is less 
restrictive), the gas stream is considered to be minimally 
stratified and you may take samples from three points. Space the 
three points at 16.7, 50.0, and 83.3 percent of the measurement 
line. Alternatively, if a 12-point stratification test was performed 
and the emissions were shown to be minimally stratified (all points 
within  10.0 percent of their mean or within 1.0 ppm), and if the stack diameter (or equivalent diameter, 
for a rectangular stack or duct) is greater than 2.4 meters (7.8 
ft), then you may use 3-point sampling and locate the three points 
along the measurement line exhibiting the highest average 
concentration during the stratification test at 0.4, 1.2 and 2.0 
meters from the stack or duct wall. If the gas stream is found to be 
stratified because the 10.0 percent or 1.0 ppm criterion for a 3-
point test is not met, locate 12 traverse points for the test in 
accordance with Table 1-1 or Table 1-2 of Method 1.
* * * * *
    8.2.7 Interference Check. Conduct an interference response test 
of the gas analyzer prior to its initial use in the field. If you 
have multiple analyzers of the same make and model, you need only 
perform this alternative interference check on one analyzer. You may 
also meet the interference check requirement if the instrument 
manufacturer performs this or a similar check on an analyzer of the 
same make and model of the analyzer that you use and provides you 
with documented results.
    (1) You may introduce the appropriate interference test gases 
(that are potentially encountered during a test; see examples in 
Table 7E-3) into the analyzer separately or as mixtures. Test the 
analyzer with the interference gas alone at the highest 
concentration expected at a test source and again with the 
interference gas and NOX at a representative 
NOX test concentration. For analyzers measuring 
NOX greater than 20 ppm, use a calibration gas with a 
NOX concentration of 80 to 100 ppm and set this 
concentration equal to the calibration span. For analyzers measuring 
less than 20 ppm NOX, select an NO concentration for the 
calibration span that reflects the emission levels at the sources to 
be tested, and perform the interference check at that level. Measure 
the total interference response of the analyzer to these gases in 
ppmv. Record the responses and determine the interference using 
Table 7E-4. The specification in section 13.4 must be met.
    (2) A copy of this data, including the date completed and signed 
certification, must be available for inspection at the test site and 
included with each test report. This interference test is valid for 
the life of the instrument unless major analytical components (e.g., 
the detector) are replaced with different model parts. If major 
components are replaced with different model parts, the interference 
gas check must be repeated before returning the analyzer to service. 
If major components are replaced, the interference gas check must be 
repeated before returning the analyzer to service. The tester must 
ensure that any specific technology, equipment, or procedures that 
are intended to remove interference effects are operating properly 
during testing.
* * * * *
    12.8 NO2--NO Conversion Efficiency Correction. If 
desired, calculate the total NOX concentration with a 
correction for converter efficiency using Equation 7E-8.
[GRAPHIC] [TIFF OMITTED] TR30AU16.008

* * * * *

Method 10--Determination of Carbon Monoxide Emissions From Stationary 
Sources (Instrumental Analyzer Procedure)

* * * * *
    6.2.5 Flexible Bag. Tedlar, or equivalent, with a capacity of 60 
to 90 liters (2 to 3 ft\3\). (Verify through the manufacturer that 
the Tedlar alternative is suitable for CO and make this verified 
information available for inspection.) Leak-test the bag in the 
laboratory before using by evacuating with a pump followed by a dry 
gas meter. When the evacuation is complete, there should be no flow 
through the meter.
    6.2.6 Sample Tank. Stainless steel or aluminum tank equipped 
with a pressure indicator with a minimum volume of 4 liters.
* * * * *
    8.4.2 Integrated Sampling. Evacuate the flexible bag or sample 
tank. Set up the equipment as shown in Figure 10-1 with the bag 
disconnected. Place the probe in the stack and purge the sampling 
line. Connect the bag, making sure that all connections are leak-
free. Sample at a rate proportional to the stack velocity. If 
needed, the CO2 content of the gas may be determined by 
using the Method 3 integrated sample procedures, or by weighing an 
ascarite CO2 removal tube used and computing 
CO2 concentration from the gas volume sampled and the 
weight gain of the tube. Data may be recorded on a form similar to 
Table 10-1. If a sample tank is used for sample collection, follow 
procedures similar to those in sections 8.1.2, 8.2.3, 8.3, and 12.4 
of Method 25 as appropriate to

[[Page 59817]]

prepare the tank, conduct the sampling, and correct the measured 
sample concentration.
* * * * *

Method 10A--Determination of Carbon Monoxide Emissions in Certifying 
Continuous Emission Monitoring Systems at Petroleum Refineries

* * * * *
    6.1.6 Flexible Bag. Tedlar, or equivalent, with a capacity of 10 
liters (0.35 ft\3\) and equipped with a sealing quick-connect plug. 
The bag must be leak-free according to section 8.1. For protection, 
it is recommended that the bag be enclosed within a rigid container.
    6.1.7 Sample Tank. Stainless steel or aluminum tank equipped 
with a pressure indicator with a minimum volume of 10 liters.
    6.1.8 Valves. Stainless-steel needle valve to adjust flow rate, 
and stainless-steel 3-way valve, or equivalent.
    6.1.9 CO2 Analyzer. Fyrite, or equivalent, to measure 
CO2 concentration to within 0.5 percent.
    6.1.10 Volume Meter. Dry gas meter, capable of measuring the 
sample volume under calibration conditions of 300 ml/min (0.01 
ft\3\/min) for 10 minutes.
    6.1.11 Pressure Gauge. A water filled U-tube manometer, or 
equivalent, of about 30 cm (12 in.) to leak-check the flexible bag.
* * * * *
    8.1 Sample Bag or Tank Leak-Checks. While a leak-check is 
required after bag or sample tank use, it should also be done before 
the bag or sample tank is used for sample collection. The tank 
should be leak-checked according to the procedure specified in 
section 8.1.2 of Method 25. The bag should be leak-checked in the 
inflated and deflated condition according to the following 
procedure:
* * * * *
    8.2.1 Evacuate and leak check the sample bag or tank as 
specified in section 8.1. Assemble the apparatus as shown in Figure 
10A-1. Loosely pack glass wool in the tip of the probe. Place 400 ml 
of alkaline permanganate solution in the first two impingers and 250 
ml in the third. Connect the pump to the third impinger, and follow 
this with the surge tank, rate meter, and 3-way valve. Do not 
connect the bag or sample tank to the system at this time.
* * * * *
    8.2.3 Purge the system with sample gas by inserting the probe 
into the stack and drawing the sample gas through the system at 300 
ml/min 10 percent for 5 minutes. Connect the evacuated 
bag or sample tank to the system, record the starting time, and 
sample at a rate of 300 ml/min for 30 minutes, or until the bag is 
nearly full, or the sample tank reaches ambient pressure. Record the 
sampling time, the barometric pressure, and the ambient temperature. 
Purge the system as described above immediately before each sample.
* * * * *

Method 10B--Determination of Carbon Monoxide Emissions from Stationary 
Sources

* * * * *
    6.1. Sample Collection. Same as in Method 10A, section 6.1 
(paragraphs 6.1.1 through 6.1.11).
* * * * *

0
13. Revise section 8.3.2 in Method 15 of appendix A-5 to part 60 to 
read as follows:

Appendix A-5 to Part 60-Test Methods 11 Through 15A

* * * * *

Method 15--Determination of Hydrogen Sulfide, Carbonyl Sulfide, and 
Carbon Disulfide Emissions From Stationary Sources

* * * * *
    8.3.2 Determination of Calibration Drift. After each run, or 
after a series of runs made within a 24-hour period, perform a 
partial recalibration using the procedures in section 10.0. Only 
H2S (or other permeant) need be used to recalibrate the 
GC/FPD analysis system and the dilution system. Partial 
recalibration may be performed at the midlevel calibration gas 
concentration or at a concentration measured in the samples but not 
less than the lowest calibration standard used in the initial 
calibration. Compare the calibration curves obtained after the runs 
to the calibration curves obtained under section 10.3. The 
calibration drift should not exceed the limits set forth in section 
13.4. If the drift exceeds this limit, the intervening run or runs 
should be considered invalid. As an option, the calibration data set 
that gives the highest sample values may be chosen by the tester.
* * * * *

0
14. In appendix A-6 to part 60:
0
a. Revise sections 12.1 and 12.2 in Method 16C.
0
b. Remove section 8.2.1.5.2.3 in Method 18.
    The revisions read as follows:

Appendix A-6 to Part 60--Test Methods 16 Through 18

* * * * *

Method 16C--Determination of Total Reduced Sulfur Emissions From 
Stationary Sources

* * * * *
    12.1 Nomenclature.

ACE = Analyzer calibration error, percent of calibration span.
CD = Calibration drift, percent.
CDir = Measured concentration of a calibration gas (low, 
mid, or high) when introduced in direct calibration mode, ppmv.
CH2S = Concentration of the system performance check gas, 
ppmv H2S.
CS = Measured concentration of the system performance gas 
when introduced in system calibration mode, ppmv H2S.
CV = Manufacturer certified concentration of a 
calibration gas (low, mid, or high), ppmv SO2.
CSO2 = Unadjusted sample SO2 concentration, 
ppmv.
CTRS = Total reduced sulfur concentration corrected for 
system performance, ppmv.
CS = Calibration span, ppmv.
DF = Dilution system (if used) dilution factor, dimensionless.
SP = System performance, percent.

    12.2 Analyzer Calibration Error. For non-dilution systems, use 
Equation 16C-1 to calculate the analyzer calibration error for the 
low-, mid-, and high-level calibration gases.
[GRAPHIC] [TIFF OMITTED] TR30AU16.009

* * * * *

0
15. In appendix A-7 to part 60:
0
a. Revise sections 9.1, 12.1, and 12.3 in Method 25C.
0
b. Remove section 11.2 in Method 25C.
0
c. Add sections 12.4, 12.5, 12.5.1 and 12.5.2 in Method 25C.
    The revisions and additions read as follows:

Appendix A-7 to Part 60--Test Methods 19 Through 25E

* * * * *

Method 25C--Determination of Nonmethane Organic Compounds (NMOC) in 
Landfill Gases

* * * * *
    9.1 Miscellaneous Quality Control Measures.

------------------------------------------------------------------------
                                 Quality control
           Section                   measure               Effect
------------------------------------------------------------------------
8.4.2.......................  Verify that landfill  Ensures that ambient
                               gas sample contains   air was not drawn
                               less than 20          into the landfill
                               percent N2 or 5       gas sample and gas
                               percent O2.           was sampled from an
                                                     appropriate
                                                     location.

[[Page 59818]]

 
10.1, 10.2..................  NMOC analyzer         Ensures precision of
                               initial and daily     analytical results.
                               performance checks.
------------------------------------------------------------------------

* * * * *
    12.1 Nomenclature
Bw = Moisture content in the sample, fraction.
CN2 = N2 concentration in the diluted sample 
gas.
CmN2 = Measured N2 concentration, fraction in 
landfill gas.
CmOx = Measured Oxygen concentration, fraction in 
landfill gas.
COx = Oxygen concentration in the diluted sample gas.
Ct = Calculated NMOC concentration, ppmv C equivalent.
Ctm = Measured NMOC concentration, ppmv C equivalent.
Pb = Barometric pressure, mm Hg.
Pt = Gas sample tank pressure after sampling, but before 
pressurizing, mm Hg absolute.
Ptf = Final gas sample tank pressure after pressurizing, 
mm Hg absolute.
Pti = Gas sample tank pressure after evacuation, mm Hg 
absolute.
Pw = Vapor pressure of H2O (from Table 25C-1), 
mm Hg.
r = Total number of analyzer injections of sample tank during 
analysis (where j = injection number, 1 . . . r).
Tt = Sample tank temperature at completion of sampling, 
[deg]K.
Tti = Sample tank temperature before sampling, [deg]K.
Ttf = Sample tank temperature after pressuring, [deg]K.
* * * * *
    12.3 Nitrogen Concentration in the landfill gas. Use equation 
25C-2 to calculate the measured concentration of nitrogen in the 
original landfill gas.
[GRAPHIC] [TIFF OMITTED] TR30AU16.010

    12.4 Oxygen Concentration in the landfill gas. Use equation 25C-
3 to calculate the measured concentration of oxygen in the original 
landfill gas.
[GRAPHIC] [TIFF OMITTED] TR30AU16.011

    12.5 You must correct the NMOC Concentration for the 
concentration of nitrogen or oxygen based on which gas or gases 
passes the requirements in section 9.1.
    12.5.1 NMOC Concentration with nitrogen correction. Use Equation 
25C-4 to calculate the concentration of NMOC for each sample tank 
when the nitrogen concentration is less than 20 percent.
[GRAPHIC] [TIFF OMITTED] TR30AU16.012

    12.5.2 NMOC Concentration with oxygen correction. Use Equation 
25C-5 to calculate the concentration of NMOC for each sample tank if 
the landfill gas oxygen is less than 5 percent and the landfill gas 
nitrogen concentration is greater than 20 percent.
[GRAPHIC] [TIFF OMITTED] TR30AU16.013

* * * * *

0
16. In appendix A-8 to Part 60:
0
a. Revise section 13.3 in Method 26.
0
b. Revise sections 4.3 and 8.1.6 in Method 26A.
0
c. Revise section 8.2.9.3 in Method 29.
0
d. Add sections 10.4 and 10.5 in Method 29.
0
e. Revise the section heading for section 8.1 in Method 30A.
0
f. Revise the section heading for section 8.1, and revise 8.3.3.8 in 
Method 30B.
    The revisions and additions read as follows:

[[Page 59819]]

Appendix A-8 to Part 60--Test Methods 26 Through 30B

* * * * *

Method 26--Determination of Hydrogen Chloride Emissions From Stationary 
Sources

* * * * *
    13.3 Detection Limit. A typical IC instrumental detection limit 
for Cl- is 0.2 [mu]g/ml. Detection limits for the other 
analyses should be similar. Assuming 50 ml liquid recovered from 
both the acidified impingers, and the basic impingers, and 0.12 dscm 
(4.24 dscf) of stack gas sampled, then the analytical detection 
limit in the stack gas would be about 0.05 ppm for HCl and 
Cl2, respectively.
* * * * *

Method 26A--Determination of Hydrogen Halide and Halogen Emissions From 
Stationary Sources Isokinetic Method

* * * * *
    4.3 High concentrations of nitrogen oxides (NOX) may 
produce sufficient nitrate (NO3-) to interfere 
with measurements of very low Br- levels. Dissociating 
chloride salts (e.g., ammonium chloride) at elevated temperatures 
interfere with halogen acid measurement in this method. Maintaining 
particulate probe/filter temperatures between 120 [deg]C and 134 
[deg]C (248 [deg]F and 273 [deg]F) minimizes this interference.
* * * * *
    8.1.6 Post-Test Moisture Removal (Optional). When the optional 
cyclone is included in the sampling train or when liquid is visible 
on the filter at the end of a sample run even in the absence of a 
cyclone, perform the following procedure. Upon completion of the 
test run, connect the ambient air conditioning tube at the probe 
inlet and operate the train with the filter heating system between 
120 and 134 [deg]C (248 and 273 [deg]F) at a low flow rate (e.g., 
[Delta]H = 1 in. H2O) to vaporize any liquid and hydrogen 
halides in the cyclone or on the filter and pull them through the 
train into the impingers. After 30 minutes, turn off the flow, 
remove the conditioning tube, and examine the cyclone and filter for 
any visible liquid. If liquid is visible, repeat this step for 15 
minutes and observe again. Keep repeating until the cyclone is dry.

    Note:  It is critical that this procedure is repeated until the 
cyclone is completely dry.

* * * * *

Method 29--Determination of Metals Emissions From Stationary Sources

* * * * *
    8.2.9.3 Wash the two permanganate impingers with 25 ml of 8 N 
HCl, and place the wash in a separate sample container labeled No. 
5C containing 200 ml of water. First, place 200 ml of water in the 
container. Then wash the impinger walls and stem with the 8 N HCl by 
turning the impinger on its side and rotating it so that the HCl 
contacts all inside surfaces. Use a total of only 25 ml of 8 N HCl 
for rinsing both permanganate impingers combined. Rinse the first 
impinger, then pour the actual rinse used for the first impinger 
into the second impinger for its rinse. Finally, pour the 25 ml of 8 
N HCl rinse carefully into the container with the 200 ml of water. 
Mark the height of the fluid level on the outside of the container 
in order to determine if leakage occurs during transport.
* * * * *
    10.4 Field Balance Calibration Check. Check the calibration of 
the balance used to weigh impingers with a weight that is at least 
500g or within 50g of a loaded impinger. The weight must be ASTM 
E617-13 ``Standard Specification for Laboratory Weights and 
Precision Mass Standards'' (incorporated by reference-see 40 CFR 
60.17) Class 6 (or better). Daily before use, the field balance must 
measure the weight within 0.5g of the certified mass. If 
the daily balance calibration check fails, perform corrective 
measures and repeat the check before using balance.
    10.5 Analytical Balance Calibration. Perform a multipoint 
calibration (at least five points spanning the operational range) of 
the analytical balance before the first use, and semiannually 
thereafter. The calibration of the analytical balance must be 
conducted using ASTM E617-13 ``Standard Specification for Laboratory 
Weights and Precision Mass Standards'' (incorporated by reference--
see 40 CFR 60.17) Class 2 (or better) tolerance weights. Audit the 
balance each day it is used for gravimetric measurements by weighing 
at least one ASTM E617-13 Class 2 tolerance (or better) calibration 
weight that corresponds to 50 to 150 percent of the weight of one 
filter or between 1g and 5g. If the scale cannot reproduce the value 
of the calibration weight to within 0.5 mg of the certified mass, 
perform corrective measures, and conduct the multipoint calibration 
before use.
* * * * *

Method 30A--Determination of Total Vapor Phase Mercury Emissions From 
Stationary Sources (Instrumental Analyzer Procedure)

* * * * *
    8.1 Selection of Sampling Sites and Sampling Points * * *
* * * * *

Method 30B--Determination of Total Vapor Phase Mercury Emissions From 
Coal-Fired Combustion Sources Using Carbon Sorbent Traps

* * * * *
    8.1 Selection of Sampling Sites and Sampling Points * * *
* * * * *
    8.3.3.8 Sample Handling, Preservation, Storage, and Transport. 
While the performance criteria of this approach provides for 
verification of appropriate sample handling, it is still important 
that the user consider, determine and plan for suitable sample 
preservation, storage, transport, and holding times for these 
measurements. Therefore, procedures in ASTM D6911-15 ``Standard 
Guide for Packaging and Shipping Environmental Samples for 
Laboratory Analysis'' (incorporated by reference-see 40 CFR 60.17) 
shall be followed for all samples, where appropriate. To avoid Hg 
contamination of the samples, special attention should be paid to 
cleanliness during transport, field handling, sampling, recovery, 
and laboratory analysis, as well as during preparation of the 
sorbent cartridges. Collection and analysis of blank samples (e.g., 
reagent, sorbent, field, etc.) is useful in verifying the absence or 
source of contaminant Hg.
* * * * *

0
17. In appendix B to part 60:
0
a. Add the entry ``Performance Specification 16--Specifications and 
Test Procedures for Predictive Emission Monitoring Systems in 
Stationary Sources'' at the end of the table of contents for appendix B 
to part 60.
0
b. Add a sentence to the end of section 8.1(2)(i) in Performance 
Specification 1.
0
c. Revise sections 3.11, 6.1.1, 6.1.2, 16.3.2, and section 18.0 in 
Performance Specification 2.
0
d. Revise section 13.2 in Performance Specification 3.
0
e. Revise sections 8.3, 8.3.1, and 13.3 in Performance Specification 
4A.
0
f. Revise sections 12.1 and 13.1 in Performance Specification 11.
0
g. Revise section 9.1.2 in Performance Specification 15.
0
h. Add reserved sections 14.0 and 15.0 in Performance Specification 15.
0
i. Revise the introductory text of section 12.2.3 in Performance 
Specification 16.
0
j. Revise table 16-1 in Performance Specification 16.
    The revisions and additions read as follows:

Appendix B to Part 60--Performance Specifications

* * * * *

Performance Specification 1--Specifications and Test Procedures for 
Continuous Opacity Monitoring Systems in Stationary Sources

* * * * *
    8.1 * * *
    (2) * * *
    (i) * * * Alternatively, you may select a measurement location 
specified in paragraph 8.1(2)(ii) or 8.1(2)(iii).
* * * * *

Performance Specification 2--Specifications and Test Procedures for 
SO2 and NOX Continuous Emission Monitoring 
Systems in Stationary Sources

* * * * *
    3.11 Span Value means the calibration portion of the measurement 
range as specified in the applicable regulation or other 
requirement. If the span is not specified in the applicable 
regulation or other requirement, then it must be a value 
approximately equivalent to two times the emission standard. For 
spans less than 500 ppm, the span value may either be rounded upward 
to the next highest multiple of 10 ppm, or to the next highest 
multiple of 100 ppm such that the equivalent emission concentration 
is not less than 30 percent of the selected span value.
* * * * *

[[Page 59820]]

    6.1.1 Data Recorder. The portion of the CEMS that provides a 
record of analyzer output. The data recorder may record other 
pertinent data such as effluent flow rates, various instrument 
temperatures or abnormal CEMS operation. The data recorder output 
range must include the full range of expected concentration values 
in the gas stream to be sampled including zero and span values.
    6.1.2 The CEMS design should also allow the determination of 
calibration drift at the zero and span values. If this is not 
possible or practical, the design must allow these determinations to 
be conducted at a low-level value (zero to 20 percent of the span 
value) and at a value between 50 and 100 percent of the span value. 
In special cases, the Administrator may approve a single-point 
calibration drift determination.
* * * * *
    16.3.2 For diluent CEMS:

RA=d; <=0.7 percent O2 or CO2, as applicable.

    Note:  Waiver of the relative accuracy test in favor of the 
alternative RA procedure does not preclude the requirements to 
complete the CD tests nor any other requirements specified in an 
applicable subpart for reporting CEMS data and performing CEMS drift 
checks or audits.

* * * * *

18.0 Tables, Diagrams, Flowcharts, and Validation Data

                                                                   Table 2-1--t-Values
--------------------------------------------------------------------------------------------------------------------------------------------------------
                          n \a\                                  t0.975             n \a\              t0.975             n \a\              t0.975
--------------------------------------------------------------------------------------------------------------------------------------------------------
2........................................................             12.706                  7              2.447                 12              2.201
3........................................................              4.303                  8              2.365                 13              2.179
4........................................................              3.182                  9              2.306                 14              2.160
5........................................................              2.776                 10              2.262                 15              2.145
6........................................................              2.571                 11              2.228                 16              2.131
--------------------------------------------------------------------------------------------------------------------------------------------------------
\a\ The values in this table are already corrected for n-1 degrees of freedom. Use n equal to the number of individual values.

                      Table 2-2--Measurement Range
------------------------------------------------------------------------
                                               Diluent monitor for
  Measurement point       Pollutant    ---------------------------------
                           monitor            CO2               O2
------------------------------------------------------------------------
1....................  20-30% of span   5-8% by volume.  4-6% by volume.
                        value.
2....................  50-60% of span   10-14% by        8-12% by
                        value.           volume.          volume.
------------------------------------------------------------------------

BILLING CODE 6560-50-P

[[Page 59821]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.014

[[Page 59822]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.015

 
 
 
 
 
 \a\ For Steam generators.
\b\ Average of three samples.
\c\ Make sure that RM and CEMS data are on a consistent basis, either
  wet or dry.

BILLING CODE 6560-50-C
* * * * *

Performance Specification 3--Specifications and Test Procedures for 
O2 and CO2 Continuous Emission Monitoring Systems 
in Stationary Sources

* * * * *
    13.2 CEMS Relative Accuracy Performance Specification. The RA of 
the CEMS must be no greater than 20.0 percent of the mean value of 
the reference method (RM) data when calculated using equation 3-1. 
The results are also acceptable if the result of Equation 3-2 is 
less than or equal to 1.0 percent O2 (or CO2).

[[Page 59823]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.016

* * * * *

Performance Specification 4A--Specifications and Test Procedures for 
Carbon Monoxide Continuous Emission Monitoring Systems in Stationary 
Sources

* * * * *
    8.3 Response Time Test Procedure. The response time test applies 
to all types of CEMS, but will generally have significance only for 
extractive systems. The entire system is checked with this procedure 
including applicable sample extraction and transport, sample 
conditioning, gas analyses, and data recording.
    8.3.1 Introduce zero gas into the system. When the system output 
has stabilized (no change greater than 1 percent of full scale for 
30 sec), introduce an upscale calibration gas and wait for a stable 
value. Record the time (upscale response time) required to reach 95 
percent of the final stable value. Next, reintroduce the zero gas 
and wait for a stable reading before recording the response time 
(downscale response time). Repeat the entire procedure until you 
have three sets of data to determine the mean upscale and downscale 
response times. The slower or longer of the two means is the system 
response time.
* * * * *
    13.3 Response Time. The CEMS response time shall not exceed 240 
seconds to achieve 95 percent of the final stable value.
* * * * *

Performance Specification 11--Specifications and Test Procedures for 
Particulate Matter Continuous Emission Monitoring Systems at Stationary 
Sources

* * * * *
    12.1 How do I calculate upscale drift and zero drift? You must 
determine the difference in your PM CEMS output readings from the 
established reference values (zero and upscale check values) after a 
stated period of operation during which you performed no unscheduled 
maintenance, repair or adjustment.
    (1) Calculate the upscale drift (UD) using Equation 11-1:
    [GRAPHIC] [TIFF OMITTED] TR30AU16.017
    
Where:

UD = The upscale (high-level) drift of your PM CEMS in percent,
RCEM = The measured PM CEMS response to the upscale 
reference standard,
RU = The pre-established numerical value of the upscale 
reference standard, and
Rr = The response range of the analyzer.

    (2) Calculate the zero drift (ZD) using Equation 11-2:

[[Page 59824]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.018

Where:

ZD = The zero (low-level) drift of your PM CEMS in percent,
RCEM = The measured PM CEMS response to the zero 
reference standard,
RL = The pre-established numerical value of the zero 
reference standard, and
Rr = The response range of the analyzer.

    (3) Summarize the results on a data sheet similar to that shown 
in Table 2 (see section 17).
* * * * *
    13.1 What is the 7-day drift check performance specification? 
Your daily PM CEMS internal drift checks must demonstrate that the 
average daily drift of your PM CEMS does not deviate from the value 
of the reference light, optical filter, Beta attenuation signal, or 
other technology-suitable reference standard by more than 2 percent 
of the response range. If your CEMS includes diluent and/or 
auxiliary monitors (for temperature, pressure, and/or moisture) that 
are employed as a necessary part of this performance specification, 
you must determine the calibration drift separately for each 
ancillary monitor in terms of its respective output (see the 
appropriate performance specification for the diluent CEMS 
specification). None of the calibration drifts may exceed their 
individual specification.
* * * * *

Performance Specification 15--Performance Specification for Extractive 
FTIR Continuous Emissions Monitor Systems in Stationary Sources

* * * * *
    9.1.2 Test Procedure. Spike the audit sample using the analyte 
spike procedure in section 11. The audit sample is measured directly 
by the FTIR system (undiluted) and then spiked into the effluent at 
a known dilution ratio. Measure a series of spiked and unspiked 
samples using the same procedures as those used to analyze the stack 
gas. Analyze the results using sections 12.1 and 12.2. The measured 
concentration of each analyte must be within 5 percent 
of the expected concentration (plus the uncertainty), i.e., the 
calculated correction factor must be within 0.93 and 1.07 for an 
audit with an analyte uncertainty of 2 percent.
* * * * *

14.0 Pollution Prevention [Reserved]

15.0 Waste Management [Reserved]

* * * * *

Performance Specification 16--Specifications and Test Procedures for 
Predictive Emission Monitoring Systems in Stationary Sources

* * * * *

12.0 Calculations and Data Analysis

* * * * *
    12.2.3 Confidence Coefficient. Calculate the confidence 
coefficient using Equation 16-3 and Table 16-1 for n-1 degrees of 
freedom.
* * * * *

17.0 Tables, Diagrams, Flowcharts, and Validation Data

        Table 16-1--t-Values for One-sided, 97.5 Percent Confidence Intervals for Selected Sample Sizes *
----------------------------------------------------------------------------------------------------------------
                n-1 *                          t-value                    n-1                    t-value
----------------------------------------------------------------------------------------------------------------
1....................................                   12.706                       15                    2.131
2....................................                    4.303                       16                    2.120
3....................................                    3.182                       17                    2.110
4....................................                    2.776                       18                    2.101
5....................................                    2.571                       19                    2.093
6....................................                    2.447                       20                    2.086
7....................................                    2.365                       21                    2.080
8....................................                    2.306                       22                    2.074
9....................................                    2.262                       23                    2.069
10...................................                    2.228                       24                    2.064
11...................................                    2.201                       25                    2.060
12...................................                    2.179                       26                    2.056
13...................................                    2.160                       27                    2.052
14...................................                    2.145                      >28                  t-Table
----------------------------------------------------------------------------------------------------------------
* The value n is the number of RM runs; n-1 equals the degrees of freedom.

* * * * *

0
18. Revise section 12.0 paragraphs (3) and (4) in Procedure 2 of 
appendix F to part 60 to read as follows:

Appendix F to Part 60--Quality Assurance Procedures

* * * * *

Procedure 2--Quality Assurance Requirements for Particulate Matter 
Continuous Emission Monitoring Systems at Stationary Sources

* * * * *

12.0 What calculations and data analysis must I perform for my PM 
CEMS?

* * * * *
    (3) How do I calculate daily upscale and zero drift? You must 
calculate the upscale drift using Equation 2-2 and the zero drift 
using Equation 2-3:
[GRAPHIC] [TIFF OMITTED] TR30AU16.019

Where:

UD = The upscale drift of your PM CEMS, in percent,
RCEM = Your PM CEMS response to the upscale check value,
RU = The upscale check value, and
Rr = The response range of the analyzer.

[[Page 59825]]

[GRAPHIC] [TIFF OMITTED] TR30AU16.020

Where:

ZD = The zero (low-level) drift of your PM CEMS, in percent,
RCEM = Your PM CEMS response of the zero check value,
RL = The zero check value, and
Rr = The response range of the analyzer.

    (4) How do I calculate SVA accuracy? You must use Equation 2-4 
to calculate the accuracy, in percent, for each of the three SVA 
tests or the daily sample volume check:
[GRAPHIC] [TIFF OMITTED] TR30AU16.021

Where:

SVA Accuracy = The SVA accuracy at each audit point, in percent,
VM = Sample gas volume determined/reported by your PM 
CEMS (e.g., dscm), and
VR = Sample gas volume measured by the independent 
calibrated reference device (e.g., dscm) for the SVA or the 
reference value for the daily sample volume check.

    Note: Before calculating SVA accuracy, you must correct the 
sample gas volumes measured by your PM CEMS and the independent 
calibrated reference device to the same basis of temperature, 
pressure, and moisture content. You must document all data and 
calculations.

* * * * *

PART 61--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS

0
19. The authority citation for part 61 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

0
20. In Sec.  61.13, revise paragraph (e)(1)(i) to read as follows:

Sec.  61.13  Emission tests and waiver of emission tests.

* * * * *
    (e) * * *
    (1) * * *
    (i) The source owner, operator, or representative of the tested 
facility shall obtain an audit sample, if commercially available, from 
an AASP for each test method used for regulatory compliance purposes. 
No audit samples are required for the following test methods: Methods 
3A and 3C of appendix A-3 of part 60 of this chapter; Methods 6C, 7E, 
9, and 10 of appendix A-4 of part 60; Method 18 and 19 of appendix A-6 
of part 60; Methods 20, 22, and 25A of appendix A-7 of part 60; Methods 
30A and 30B of appendix A-8 of part 60; and Methods 303, 318, 320, and 
321 of appendix A of part 63 of this chapter. If multiple sources at a 
single facility are tested during a compliance test event, only one 
audit sample is required for each method used during a compliance test. 
The compliance authority responsible for the compliance test may waive 
the requirement to include an audit sample if they believe that an 
audit sample is not necessary. ``Commercially available'' means that 
two or more independent AASPs have blind audit samples available for 
purchase. If the source owner, operator, or representative cannot find 
an audit sample for a specific method, the owner, operator, or 
representative shall consult the EPA Web site at the following URL, 
www.epa.gov/ttn/emc, to confirm whether there is a source that can 
supply an audit sample for that method. If the EPA Web site does not 
list an available audit sample at least 60 days prior to the beginning 
of the compliance test, the source owner, operator, or representative 
shall not be required to include an audit sample as part of the quality 
assurance program for the compliance test. When ordering an audit 
sample, the source owner, operator, or representative shall give the 
sample provider an estimate for the concentration of each pollutant 
that is emitted by the source or the estimated concentration of each 
pollutant based on the permitted level and the name, address, and phone 
number of the compliance authority. The source owner, operator, or 
representative shall report the results for the audit sample along with 
a summary of the emission test results for the audited pollutant to the 
compliance authority and shall report the results of the audit sample 
to the AASP. The source owner, operator, or representative shall make 
both reports at the same time and in the same manner or shall report to 
the compliance authority first and then report to the AASP. If the 
method being audited is a method that allows the samples to be analyzed 
in the field and the tester plans to analyze the samples in the field, 
the tester may analyze the audit samples prior to collecting the 
emission samples provided a representative of the compliance authority 
is present at the testing site. The tester may request, and the 
compliance authority may grant, a waiver to the requirement that a 
representative of the compliance authority must be present at the 
testing site during the field analysis of an audit sample. The source 
owner, operator, or representative may report the results of the audit 
sample to the compliance authority and then report the results of the 
audit sample to the AASP prior to collecting any emission samples. The 
test protocol and final test report shall document whether an audit 
sample was ordered and utilized and the pass/fail results as 
applicable.
* * * * *

0
21. Revise the section heading for section 11.7.3 in Method 107 of 
appendix B to part 61 to read as follows:

Appendix B to Part 61--Test Methods

* * * * *

Method 107--Determination of Vinyl Chloride Content of In-Process 
Wastewater Samples, and Vinyl Chloride Content of Polyvinyl Chloride 
Resin Slurry, Wet Cake, and Latex Samples

* * * * *

11.0 Analytical Procedure

* * * * *
    11.7.3 Dispersion Resin Slurry and Latex Samples. * * *
* * * * *

PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS 
FOR SOURCE CATEGORIES

0
22. The authority citation for part 63 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

0
23. In Sec.  63.7:
0
a. Revise paragraph (c)(2)(iii)(A).
0
b. Add paragraph (g)(2).
    The revision and addition read as follows:

Sec.  63.7  Performance testing requirements.

* * * * *
    (c) * * *
    (2) * * *
    (iii) * * *
    (A) The source owner, operator, or representative of the tested 
facility shall

[[Page 59826]]

obtain an audit sample, if commercially available, from an AASP for 
each test method used for regulatory compliance purposes. No audit 
samples are required for the following test methods: Methods 3A and 3C 
of appendix A-3 of part 60 of this chapter; Methods 6C, 7E, 9, and 10 
of appendix A-4 of part 60; Methods 18 and 19 of appendix A-6 of part 
60; Methods 20, 22, and 25A of appendix A-7 of part 60; Methods 30A and 
30B of appendix A-8 of part 60; and Methods 303, 318, 320, and 321 of 
appendix A of this part. If multiple sources at a single facility are 
tested during a compliance test event, only one audit sample is 
required for each method used during a compliance test. The compliance 
authority responsible for the compliance test may waive the requirement 
to include an audit sample if they believe that an audit sample is not 
necessary. ``Commercially available'' means that two or more 
independent AASPs have blind audit samples available for purchase. If 
the source owner, operator, or representative cannot find an audit 
sample for a specific method, the owner, operator, or representative 
shall consult the EPA Web site at the following URL, www.epa.gov/ttn/emc, to confirm whether there is a source that can supply an audit 
sample for that method. If the EPA Web site does not list an available 
audit sample at least 60 days prior to the beginning of the compliance 
test, the source owner, operator, or representative shall not be 
required to include an audit sample as part of the quality assurance 
program for the compliance test. When ordering an audit sample, the 
source owner, operator, or representative shall give the sample 
provider an estimate for the concentration of each pollutant that is 
emitted by the source or the estimated concentration of each pollutant 
based on the permitted level and the name, address, and phone number of 
the compliance authority. The source owner, operator, or representative 
shall report the results for the audit sample along with a summary of 
the emission test results for the audited pollutant to the compliance 
authority and shall report the results of the audit sample to the AASP. 
The source owner, operator, or representative shall make both reports 
at the same time and in the same manner or shall report to the 
compliance authority first and then report to the AASP. If the method 
being audited is a method that allows the samples to be analyzed in the 
field and the tester plans to analyze the samples in the field, the 
tester may analyze the audit samples prior to collecting the emission 
samples provided a representative of the compliance authority is 
present at the testing site. The tester may request, and the compliance 
authority may grant, a waiver to the requirement that a representative 
of the compliance authority must be present at the testing site during 
the field analysis of an audit sample. The source owner, operator, or 
representative may report the results of the audit sample to the 
compliance authority and then report the results of the audit sample to 
the AASP prior to collecting any emission samples. The test protocol 
and final test report shall document whether an audit sample was 
ordered and utilized and the pass/fail results as applicable.
* * * * *
    (g) * * *
    (2) Contents of report (electronic or paper submitted copy). Unless 
otherwise specified in a relevant standard or test method, or as 
otherwise approved by the Administrator in writing, the report for a 
performance test shall include the elements identified in paragraphs 
(g)(2)(i) through (vi) of this section.
    (i) General identification information for the facility including a 
mailing address, the physical address, the owner or operator or 
responsible official (where applicable) and his/her email address, and 
the appropriate Federal Registry System (FRS) number for the facility.
    (ii) Purpose of the test including the applicable regulation 
requiring the test, the pollutant(s) and other parameters being 
measured, the applicable emission standard, and any process parameter 
component, and a brief process description.
    (iii) Description of the emission unit tested including fuel 
burned, control devices, and vent characteristics; the appropriate 
source classification code (SCC); the permitted maximum process rate 
(where applicable); and the sampling location.
    (iv) Description of sampling and analysis procedures used and any 
modifications to standard procedures, quality assurance procedures and 
results, record of process operating conditions that demonstrate the 
applicable test conditions are met, and values for any operating 
parameters for which limits were being set during the test.
    (v) Where a test method requires you record or report, the 
following shall be included in your report: Record of preparation of 
standards, record of calibrations, raw data sheets for field sampling, 
raw data sheets for field and laboratory analyses, chain-of-custody 
documentation, and example calculations for reported results.
    (vi) Identification of the company conducting the performance test 
including the primary office address, telephone number, and the contact 
for this test including his/her email address.
* * * * *

0
24. Revise sections 13.1, 13.4, and 13.4.1 in Method 320 of appendix A 
to part 63 to read as follows:

Appendix A to Part 63--Test Methods Pollutant Measurement Methods From 
Various Waste Media

* * * * *

Method 320--Measurement of Vapor Phase Organic and Inorganic Emissions 
by Extractive Fourier Transform Infrared (FTIR) Spectroscopy

* * * * *

13.0 Method Validation Procedure

* * * * *
    13.1 Section 6.0 of Method 301 (40 CFR part 63, appendix A), the 
Analyte Spike procedure, is used with these modifications. The 
statistical analysis of the results follows section 12.0 of EPA 
Method 301. Section 3 of this method defines terms that are not 
defined in Method 301.
* * * * *
    13.4 Statistical Treatment. The statistical procedure of EPA 
Method 301 of this appendix, section 12.0 is used to evaluate the 
bias and precision. For FTIR testing a validation ``run'' is defined 
as spectra of 24 independent samples, 12 of which are spiked with 
the analyte(s) and 12 of which are not spiked.
    13.4.1 Bias. Determine the bias (defined by EPA Method 301 of 
this appendix, section 12.1.1) using equation 7:

B=Sm - CS

Where:

B = Bias at spike level.
Sm = Mean concentration of the analyte spiked samples.
CS = Expected concentration of the spiked samples.
* * * * *
[FR Doc. 2016-19642 Filed 8-29-16; 8:45 am]
 BILLING CODE 6560-50-P