24488 Federal Register / Vol. 87, No. 80 / Tuesday, April 26, 2022 / Proposed Rules 

associated implementing instructions, 

and Environmental Planning 

COMDTINST 5090.1 (series), which 

guide the Coast Guard in complying 

with the National Environmental Policy 

Act of 1969 (42 U.S.C. 4321–4370f), and 

have made a preliminary determination 

that this action is one of a category of 

actions that do not individually or 

cumulatively have a significant effect on 

the human environment. This proposed 

rule involves a safety zone lasting 12 

hours spread over the course of 3 days 

that would prohibit entry within .4 

miles of the Korean Veterans Bridge. 

Normally such actions are categorically 

excluded from further review under 

paragraph L60(a) of Appendix A, Table 

1 of DHS Instruction Manual 023–01– 

001–01, Rev. 1. A preliminary Record of 

Environmental Consideration 

supporting this determination is 

available in the docket. For instructions 

on locating the docket, see the 

ADDRESSES section of this preamble. We 

seek any comments or information that 

may lead to the discovery of a 

significant environmental impact from 

this proposed rule. 

G. Protest Activities 

The Coast Guard respects the First 

Amendment rights of protesters. 

Protesters are asked to call or email the 

person listed in the FOR FURTHER

INFORMATION CONTACT section to 

coordinate protest activities so that your 

message can be received without 

jeopardizing the safety or security of 

people, places, or vessels. 

V. Public Participation and Request for 

Comments 

We view public participation as 

essential to effective rulemaking, and 

will consider all comments and material 

received during the comment period. 

Your comment can help shape the 

outcome of this rulemaking. If you 

submit a comment, please include the 

docket number for this rulemaking, 

indicate the specific section of this 

document to which each comment 

applies, and provide a reason for each 

suggestion or recommendation. 

Submitting comments. We encourage 

you to submit comments through the 

Federal Decision Making Portal at 

https://www.regulations.gov. To do so, 

go to https://www.regulations.gov, type 

USCG–2022–0275 in the search box and 

click ‘‘Search.’’ Next, look for this 

document in the Search Results column, 

and click on it. Then click on the 

Comment option. If you cannot submit 

your material by using https://

www.regulations.gov, call or email the 

person in the FOR FURTHER INFORMATION

CONTACT section of this proposed rule 

for alternate instructions. 

Viewing material in docket. To view 

documents mentioned in this proposed 

rule as being available in the docket, 

find the docket as described in the 

previous paragraph, and then select 

‘‘Supporting & Related Material’’ in the 

Document Type column. Public 

comments will also be placed in our 

online docket and can be viewed by 

following instructions on the https://

www.regulations.gov Frequently Asked 

Questions web page. We review all 

comments received, but we will only 

post comments that address the topic of 

the proposed rule. We may choose not 

to post off-topic, inappropriate, or 

duplicate comments that we receive. 

Personal information. We accept 

anonymous comments. Comments we 

post to https://www.regulations.gov will 

include any personal information you 

have provided. For more about privacy 

and submissions to the docket in 

response to this document, see DHS’s 

eRulemaking System of Records notice 

(85 FR 14226, March 11, 2020). 

List of Subjects in 33 CFR Part 165 

Harbors, Marine safety, Navigation 

(water), Reporting and recordkeeping 

requirements, Security measures, 

Waterways. 

For the reasons discussed in the 

preamble, the Coast Guard is proposing 

to amend 33 CFR part 165 as follows: 

PART 165—REGULATED NAVIGATION 

AREAS AND LIMITED ACCESS AREAS 

■ 1. The authority citation for part 165 

continues to read as follows: 

Authority: 46 U.S.C. 70034, 70051; 33 CFR 

1.05–1, 6.04–1, 6.04–6, and 160.5; 

Department of Homeland Security Delegation 

No. 00170.1, Revision No. 01.2. 

■ 2. Add § 165.T08–0275 to read as 

follows: 

§ 165.T08–0275 Safety Zone; Cumberland 

River, Nashville, TN. 

(a) Location. The following area is a 

safety zone: All navigable waters of the 

Cumberland River from mile marker 

191.1 to mile marker 191.5. 

(b) Definitions: As used in this 

section, designated representative 

means a Coast Guard Patrol 

Commander, including a Coast Guard 

coxswain, petty officer, or other officer 

operating a Coast Guard vessel and a 

Federal, State, and local officer 

designated by or assisting the Captain of 

the Port Sector Ohio Valley (COTP) in 

the enforcement of the safety zone. 

(c) Regulations. (1) Under the general 

safety zone regulations in subpart C of 

this part, you may not enter the safety 

zone described in paragraph (a) of this 

section unless authorized by the COTP 

or the COTP’s designated representative. 

(2) To seek permission to enter, 

contact the COTP or the COTP’s 

representative by VHF–FM radio 

channel 16 or phone at 1–800–253– 

7465. Those in the safety zone must 

comply with all lawful orders or 

directions given to them by the COTP or 

the COTP’s designated representative. 

(d) Enforcement periods. This section 

will be enforced from 2 p.m. until 6:30 

p.m. on August 5, 2022, from 11 a.m. 

until 5 p.m. on August 6, 2021, and 

from 2 p.m. until 4:30 p.m. on August 

7, 2022. 

Dated: April 20, 2022. 

A.M. Beach, 

Captain, U.S. Coast Guard, Captain of the 

Port Sector Ohio Valley. 

[FR Doc. 2022–08882 Filed 4–25–22; 8:45 am] 

BILLING CODE 9110–04–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Parts 51, 60, and 63 

[EPA–HQ–OAR–2020–0556; FRL–8335–03– 

OAR] 

RIN 2060–AV35 

Testing Provisions for Air Emission 

Sources 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: This action proposes 

corrections and updates to regulations 

for source testing of emissions under 

various rules. This proposed rule 

includes corrections to inaccurate 

testing provisions, updates to outdated 

procedures, and approved alternative 

procedures that provide testers 

enhanced flexibility. The revisions will 

improve the quality of data but will not 

impose new substantive requirements 

on source owners or operators. 

DATES: Comments must be received on 

or before June 27, 2022. 

ADDRESSES: You may send comments, 

identified by Docket ID No. EPA–HQ– 

OAR–2020–0556 by any of the following 

methods: 

• Federal eRulemaking Portal: 

https://www.regulations.gov (our 

preferred method). Follow the online 

instructions for submitting comments. 

• Email: a-and-r docket@epa.gov. 

Include docket ID No. EPA–HQ–OAR– 

2020–0556 in the subject line of the 

message. 

• Fax: (202) 566–9744. 


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• Mail: U.S. Environmental 

Protection Agency, EPA Docket Center, 

Office of Air and Radiation Docket, Mail 

Code 28221T, 1200 Pennsylvania 

Avenue NW, Washington, DC 20460. 

• Hand Delivery or Courier (by 

scheduled appointment only): EPA 

Docket Center, WJC West Building, 

Room 3334, 1301 Constitution Avenue 

NW, Washington, DC 20004. The Docket 

Center’s hours of operations are 8:30 

a.m.–4:30 p.m., Monday through Friday 

(except Federal Holidays). 

Instructions: All submissions received 

must include the Docket ID No. for this 

rulemaking. Comments received may be 

posted without change to https://

www.regulations.gov/, including any 

personal information provided. For 

detailed instructions on sending 

comments and additional information 

on the rulemaking process, see the 

‘‘Public Participation’’ heading of the 

SUPPLEMENTARY INFORMATION section of 

this document. Out of an abundance of 

caution for members of the public and 

our staff, the EPA Docket Center and 

Reading Room are closed to the public, 

with limited exceptions, to reduce the 

risk of transmitting COVID–19. Our 

Docket Center staff will continue to 

provide remote customer service via 

email, phone, and webform. We 

encourage the public to submit 

comments via https://

www.regulations.gov/ or email, as there 

may be a delay in processing mail and 

faxes. Hand deliveries and couriers may 

be received by scheduled appointment 

only. For further information on EPA 

Docket Center services and the current 

status, please visit us online at https:// 

www.epa.gov/dockets. 

FOR FURTHER INFORMATION CONTACT: Mrs. 

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: 

I. Public Participation and Written Comments 

II. General Information 

A. Does this action apply to me? 

B. What action is the Agency taking? 

III. Background 

IV. Incorporation by Reference 

V. Summary of Proposed Amendments 

A. Method 201A of Appendix M of Part 51 

B. General Provisions (Subpart A) of Part 

60 

C. Standards of Performance for New 

Residential Wood Heaters (Subpart 

AAA) of Part 60 

D. Standards of Performance for New 

Residential Wood Heaters, New 

Residential Hydronic Heaters, and 

Forced-Air Furnaces (Subpart QQQQ) of 

Part 60 

E. Method 1 of Appendix A–1 of Part 60 

F. Method 4 of Appendix A–3 of Part 60 

G. Method 7 of Appendix A–4 of Part 60 

H. Method 19 of Appendix A–7 of Part 60 

I. Method 25 of Appendix A–7 of Part 60 

J. Method 25C of Appendix A–7 of Part 60 

K. Method 26 of Appendix A–8 of Part 60 

L. Performance Specification 1 of 

Appendix B of Part 60 

M. Performance Specification 2 of 

Appendix B of Part 60 

N. Performance Specification 4B of 

Appendix B of Part 60 

O. Performance Specification 6 of 

Appendix B of Part 60 

P. Performance Specification 12A of 

Appendix B of Part 60 

Q. Performance Specification 16 of 

Appendix B of Part 60 

R. Procedure 1 of Appendix F of Part 60 

S. Procedure 5 of Appendix F of Part 60 

T. General Provisions (Subpart A) of Part 

63 

U. National Emission Standards for 

Hazardous Air Pollutants From the Pulp 

and Paper Industry (Subpart S) of Part 63 

V. National Emission Standards for 

Hazardous Air Pollutants From 

Hazardous Waste Combustors (Subpart 

EEE) of Part 63 

W. National Emission Standards for 

Hazardous Air Pollutants: Paper and 

Other Web Coating (Subpart JJJJ) of Part 

63 

X. National Emission Standards for 

Hazardous Air Pollutants for Stationary 

Reciprocating Internal Combustion 

Engines (Subpart ZZZZ) of Part 63 

Y. National Emission Standards for 

Hazardous Air Pollutants: Engine Test 

Cells/Stands Residual Risk and 

Technology Review (Subpart PPPPP) of 

Part 63 

Z. National Emission Standards for 

Hazardous Air Pollutants: Coal- and OilFired Electric Utility Steam Generating 

Units (Subpart UUUUU) of Part 63 

AA. Method 315 of Appendix A of Part 63 

BB. Method 323 of Appendix A of Part 63 

VI. 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 and 1 CFR part 51 

J. Executive Order 12898: Federal Actions 

To Address Environmental Justice in 

Minority Populations and Low-Income 

Populations 

I. Public Participation and Written 

Comments 

Submit your comments identified by 

Docket ID No. EPA–HQ–OAR–2020– 

0556 at https://www.regulations.gov 

(our preferred method) or the other 

methods identified in the ADDRESSES

section. Once submitted, comments 

cannot be edited or removed from the 

docket. The EPA may publish any 

comment received to its public docket. 

Do not submit to EPA’s docket at 

https://www.regulations.gov/ any 

information you consider to be 

Confidential Business Information (CBI) 

or other information whose disclosure is 

restricted by statute. Multimedia 

submissions (audio, video, etc.) must be 

accompanied by a written comment. 

The written comment is considered the 

official comment and should include 

discussion of all points you wish to 

make. The EPA will generally not 

consider comments or comment 

contents located outside of the primary 

submission (i.e., on the web, cloud, or 

other file sharing system). For 

additional submission methods, the full 

EPA public comment policy, 

information about CBI or multimedia 

submissions, and general guidance on 

making effective comments, please visit 

https://www.epa.gov/dockets/ 

commenting-epa-dockets. 

Public visitors are allowed in the EPA 

Docket Center and Reading Room by 

making an appointment in advance. Our 

Docket Center staff will continue to 

provide remote customer service via 

email, phone, and webform. We 

encourage the public to submit 

comments via https://

www.regulations.gov/ as there may be a 

delay in processing mail and faxes. 

Hand deliveries or couriers will be 

received by scheduled appointment 

only. For further information and 

updates on EPA Docket Center services, 

please visit us online at https://

www.epa.gov/dockets. The EPA 

continues to carefully and continuously 

monitor information from the Centers 

for Disease Control and Prevention 

(CDC), local area health departments, 

and our Federal partners so that we can 

respond rapidly as conditions change 

regarding COVID–19. 

II. General Information 

A. Does this action apply to me? 

The proposed amendments apply to 

industries that are subject to the current 

provisions of 40 CFR parts 51, 60, and 

63. We did not list all of the specific 

affected industries or their North 

American Industry Classification 


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System (NAICS) codes herein since 

there are many affected sources in 

numerous NAICS categories. 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? 

This action proposes corrections and 

revisions to source test methods, 

performance specifications (PS), and 

associated regulations. The corrections 

and revisions consist primarily of 

typographical errors, updates to testing 

procedures, and the addition of 

alternative equipment and methods the 

Agency has deemed acceptable to use. 

III. Background 

The EPA catalogs errors and 

corrections, as well as necessary 

revisions to test methods, performance 

specifications, and associated 

regulations in 40 CFR parts 51, 60, and 

63 and periodically updates and revises 

these provisions. The most recent 

updates and revisions were promulgated 

on October 7, 2020 (85 FR 63394). This 

proposed rule addresses necessary 

corrections and revisions identified after 

that final action, many of which were 

brought to our attention by regulated 

sources and end-users, such as 

environmental consultants and 

compliance professionals. These 

revisions will improve the quality of 

data obtained and give source testers the 

flexibility to use newly approved 

alternative procedures. 

IV. Incorporation by Reference 

The EPA proposes to incorporate by 

reference two ASTM standards. 

Specifically, the EPA proposes to 

incorporate ASTM D6216–20, which 

covers the procedure for certifying 

continuous opacity monitors and 

includes design and performance 

specifications, test procedures, and QA 

requirements to ensure that continuous 

opacity monitors meet minimum design 

and calibration requirements necessary 

for accurate opacity monitoring 

measurements in regulatory 

environmental opacity monitoring 

applications subject to 10 percent or 

higher opacity standards. The EPA also 

proposes to update the incorporation by 

reference for ASTM D6784, a test 

method for elemental, oxidized, 

particle-bound, and total mercury in 

emissions from stationary sources, from 

the 2002 version to the 2016 version; 

this update would apply to 

incorporations by reference in 40 CFR 

part 60, appendix B, Performance 

Specification 12A for continuous 

monitoring of mercury emissions. 

Likewise, EPA proposes to update the 

incorporations by reference in 40 CFR 

part 63 for use of ASTM D6784 under 

table 5 and appendix A of Subpart 

UUUUU, for mercury emissions 

measurement and monitoring. Both the 

ASTM D6216–20 and ASTM D6784–16 

standards were developed and adopted 

by ASTM. The ASTM standards may be 

obtained from www.astm.org or from the 

ASTM at 100 Barr Harbor Drive, P.O. 

Box C700, West Conshohocken, PA 

19428–2959. 

The EPA also proposes to incorporate 

by reference the American Public Health 

Association (APHA) Method 5210 

Biochemical Oxygen Demand (BOD) 

from ‘‘Standard Methods for the 

Examination of Water and Wastewater.’’ 

This standard is acceptable as an 

alternative to Method 405.1 and is 

available from APHA at 

www.standardmethods.org or by 

telephone at (844) 232–3707. 

The EPA is also proposing specific 

modifications to requirements in an 

existing incorporation by reference, the 

ASTM E2515–11 test method. The 

proposed stipulations would modify the 

post-test leak check procedures as well 

as add procedures for performing leak 

checks during a sampling run. 

V. Summary of Proposed Amendments 

The following amendments are being 

proposed. 

A. Method 201A of Appendix M of Part 

51 

In Method 201A, the erroneous 

equation 25 in section 12.5 would be 

corrected. 

B. General Provisions (Subpart A) of 

Part 60 

In the General Provisions of part 60, 

§ 60.17(h) would be revised to add 

American Society for Testing and 

Materials (ASTM) D6216–20 and 

D6784–16 to the list of incorporations 

by reference and to re-number the 

remaining consensus standards that are 

incorporated by reference in alphanumeric order. 

C. Standards of Performance for New 

Residential Wood Heaters (Subpart 

AAA) of Part 60 

Subpart AAA would be amended to 

add stipulations for use of the ASTM 

E2515–11 test method. The stipulations 

would modify the post-test leak check 

procedures as well as add procedures 

for performing leak checks during a 

sampling run. The stipulations to ASTM 

E2515–11 are necessary as we have 

learned that the quality assurance/ 

quality control (QA/QC) requirements 

for leak tests required by ASTM E2515– 

11, section 9.6.5.1 are not sufficient to 

provide assurance of the sampling 

system integrity. Additionally, the 

language of ASTM E2515–11, section 

9.6.5.1 currently allows for averaging 

the PM results from a non-leaking 

sampling system with those from a 

leaking sampling system, which 

effectively reduces reported PM 

emissions by as much as half, rendering 

the test method inappropriate for 

compliance determination. 

We would revise the language in 

§ 60.534(c) and are proposing new 

language to replace ASTM E2515–11, 

section 9.6.5.1 by adding § 60.534(c)(1), 

which specifies appropriate post-test 

leak check procedures and in 

§ 60.534(c)(2) by adding procedures for 

performing leak checks during a 

sampling run. We are proposing these 

modifications to bring appropriate QA/ 

QC requirements to PM measurements 

required by the rule and to eliminate 

opportunity for emissions test results to 

be considered valid when a leaking 

sampling system allows dilution of the 

PM sample(s). 

We are also proposing in § 60.534(d) 

that the first hour PM emissions 

measurements be conducted using a 

separate ASTM E2515–11 sampling 

train operated concurrently with the 

paired ASTM E2515–11 sampling trains 

used in compliance PM sampling. In 

this manner, the first hour PM 

emissions would be collected 

appropriately, and the compliance test 

measurements would not be impacted 

by a sampling pause for filter 

replacement at the 1-hour mark. 

The regulatory language in 

§ 60.539b(b) would be revised to include 

General Provisions that were added to 

§ 60.8(f)(2) (81 FR 59801, August 30, 

2016) and were inadvertently exempted 

from inclusion in subpart AAA as that 

rule, as promulgated in 2015, exempted 

§ 60.8(f) in its entirety. The exemption 

promulgated in subpart AAA at 

§ 60.539b(b) was intended to exempt 

those affected sources from § 60.8(f), 

which, at the time, consisted of what is 

now currently § 60.8(f)(1) and is specific 

to compliance testing results consisting 

of the arithmetic mean of three replicate 

tests. We are proposing these 

modifications to ensure that emissions 

test reporting includes all data 

necessary to assess and assure the 

quality of the reported emissions data 

and appropriately describes and 

identifies the specific unit covered by 

the emissions test report. Since 

compliance tests in this category consist 

of a single test, the original regulatory 


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exemption to the General Provisions of 

§ 60.8(f)(1) is retained. 

D. Standards of Performance for New 

Residential Wood Heaters, New 

Residential Hydronic Heaters, and 

Forced-Air Furnaces (Subpart QQQQ) of 

Part 60 

The erroneous PM emission limits in 

g/MJ in §§ 60.5474(b)(2), (b)(3) and 

(b)(6) would be corrected. 

In addition, subpart QQQQ would be 

amended to add stipulations for use of 

the ASTM E2515–11 test method. The 

stipulations would modify the post-test 

leak check procedures as well as add 

procedures for performing leak checks 

during a sampling run. The stipulations 

to ASTM E2515–11 are necessary as we 

have learned that the QA/QC 

requirements for leak tests required by 

ASTM E2515–11, section 9.6.5.1 are not 

sufficient to provide assurance of the 

sampling system integrity. Additionally, 

the language of ASTM E2515–11, 

section 9.6.5.1 currently allows for 

averaging the PM results from a nonleaking sampling system with those 

from a leaking sampling system, which 

effectively reduces reported PM 

emissions by as much as half, rendering 

the test method inappropriate for 

compliance determination. The 

language in § 60.5476(c)(5) and 

§ 60.5476(c)(6) would be replaced with 

the word ‘‘reserved.’’ 

We would revise language in 

§ 60.5476(f) and are proposing new 

language to replace ASTM E2515–11, 

section 9.6.5.1 by adding § 60.5476(f)(1), 

which specifies appropriate post-test 

leak check procedures and in 

§ 60.5476(f)(2) adding procedures for 

performing leak checks during a 

sampling run. We are proposing these 

modifications to bring appropriate QA/ 

QC requirements to PM measurements 

required by the rule and eliminate 

opportunity for emissions test results to 

be considered valid when a leaking 

sampling system allows dilution of the 

PM sample(s). 

We are also proposing in § 60.5476(f) 

that first hour PM emissions 

measurements should be conducted 

using a separate ASTM E2515–11 

sampling train operated concurrently 

with the paired ASTM E2515–11 

sampling trains used in compliance PM 

sampling. In this manner, the first hour 

PM emissions will be collected 

appropriately, and the compliance test 

measurements would not be impacted 

by a sampling pause for filter 

replacement at the one-hour mark. In 

§ 60.5476(f), we would incorporate 

language about filter type and size 

acceptance currently in § 60.5476(c)(5). 

Additionally, we would remove text 

relating to EN 303–5 currently found in 

§ 60.5476(f). 

The regulatory language in 

§ 60.5483(b) would be revised to include 

General Provisions that were added to 

§ 60.8(f)(2) (81 FR 59801, August 30, 

2016) and were inadvertently exempted 

from subpart QQQQ as that rule, as 

promulgated in 2015, exempted § 60.8(f) 

in its entirety. The exemption 

promulgated in subpart QQQQ at 

§ 60.5483(b) was intended for those 

affected sources subject to § 60.8(f), 

which, at the time, consisted of what is 

currently § 60.8(f)(1) and is specific to 

compliance testing results consisting of 

the arithmetic mean of three replicate 

tests. We are proposing these 

modifications to ensure that emissions 

test reporting includes all data 

necessary to assess and assure the 

quality of the reported emissions data 

and appropriately describes and 

identifies the specific unit covered by 

the emissions test report. Since 

compliance tests in this category consist 

of a single test, the original regulatory 

exemption to the General Provisions of 

§ 60.8(f)(1) is retained. 

In subpart QQQQ, in Method 28WHH, 

in section 13.8, the erroneous CO 

calculation instructions for equation 23 

would be corrected to include the 

summation of CO emissions over four 

instead of three test categories. 

E. Method 1 of Appendix A–1 of Part 60 

In Method 1, the heading in section 

11.5.1 would be moved to 11.5, and the 

word ‘‘procedure’’ would be moved to 

the first sentence in section 11.5.1 for 

clarity. Section 11.5.2 would be revised 

to clearly specify the number of traverse 

points that must be used for sampling 

and velocity measurements once a 

directional flow-sensing probe 

procedure has been used to demonstrate 

that an alternative measurement site is 

acceptable. The last sentence of section 

11.5.2, which appears unclear as to 

what ‘‘same traverse point number and 

locations’’ it is referring, would be 

revised to instead specify the ‘‘same 

minimum of 40 traverse points for 

circular ducts and 42 points for 

rectangular ducts’’ that are used in the 

alternative measurement procedure of 

section 11.5.3. 

Also, Table 1–2 would be revised to 

correct the erroneous requirement that 

calls for 99.9 percent of stack diameter 

from the inside wall to the traverse 

point to 98.9 percent. 

F. Method 4 of Appendix A–3 of Part 60 

In Method 4, Table 4–3 would be 

formatted correctly. 

G. Method 7 of Appendix A–4 of Part 60 

In Method 7, section 10.1.3 would be 

revised to change the word ‘‘should’’ to 

‘‘shall’’ in the last sentence because the 

difference between the calculated 

concentration values and the actual 

concentrations are required to be less 

than 7 percent for all standards. 

H. Method 19 of Appendix A–7 of Part 

60 

In Method 19, the erroneous equation 

19–5 would be corrected. 

I. Method 25 of Appendix A–7 of Part 

60 

In Method 25, a record and report 

section (section 12.9) would be added to 

confirm that the quality control (QC) 

was successfully performed. Also, the 

erroneous Figure 25–6 would be 

corrected. 

J. Method 25C of Appendix A–7 of Part 

60 

In Method 25C, the nomenclature in 

section 12.1 for CN2 and CmN2 would be 

revised to provide clarity. 

K. Method 26 of Appendix A–8 of Part 

60 

In Method 26, erroneous equations 

26–4 and 26–5 in sections 12.4 and 12.5, 

respectively, would be revised to be 

consistent with the nomenclature in 

section 12.1. 

L. Performance Specification 1 of 

Appendix B of Part 60 

In Performance Specification 1, 

references to ASTM D6216–12 (in 

sections 2.1, 3.1, 6.1, 8.1(1), 8.1(2)(iii), 

8.1(3)(ii), 8.2(1), 8.2(2), 8.2(3), 9.0, 12.1, 

13.1, 13.2, and 16.0 reference 8) would 

be replaced with ASTM D6216–20. 

Note: If the initial certification of the 

continuous opacity monitoring system 

(COMS) has already occurred using 

D6216–98, D6216–03, D6216–07, or 

D6216–12, it will not be necessary to 

recertify using D6216–20. 

Also, in Performance Specification 1, 

section 8.1(2)(iii) would be revised by 

removing the next to the last sentence, 

which reads, ‘‘The opacities of the two 

locations or paths may be measured at 

different times but must represent the 

same process operating conditions,’’ 

because the statement is confusing and 

unclear; furthermore, it is unlikely that 

one would achieve the same conditions 

at two different times. 

M. Performance Specification 2 of 

Appendix B of Part 60 

In Performance Specification 2, in 

section 8.3.3, a sentence would be 

added to clarify that during a 

calibration, the reference gas is to be 


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introduced into the sampling system 

prior to any sample conditioning or 

filtration equipment and must pass 

through as much of the probe as is 

practical. In section 12.5, minor 

revisions would be made to clarify that 

relative accuracy (RA) test results are 

expressed as a percent of emission rate 

or concentration (units of the applicable 

standard) and the definition of the 

average reference method (RM) value for 

Equation 2–6. 

N. Performance Specification 4B of 

Appendix B of Part 60 

The entire Performance Specification 

4B would be updated to the 

Environmental Monitoring Management 

Council (EMMC) methods format used 

for all other performance specifications. 

O. Performance Specification 6 of 

Appendix B of Part 60 

In Performance Specification 6, 

section 13.2 would be revised to 

specifically state the relative accuracy 

criteria including significant figures. On 

October 7, 2020 (85 FR 63394), we 

revised section 13.2 of Performance 

Specification 6 to make the relative 

accuracy calculations and criteria 

consistent with Performance 

Specification 2 and offer an alternate 

calculation and criterion for low 

emission concentration/rate situations; 

however, we neglected to specifically 

cite the alternate relative accuracy 

criterion from Performance 

Specification 2 for low emission sources 

and to ensure consistency with 

Performance Specification 2 with regard 

to significant figures in the relative 

accuracy criteria. 

P. Performance Specification 12A of 

Appendix B of Part 60 

We are proposing to revise the 

references (in sections 8.4.2, 8.4.4, 8.4.5, 

8.4.6.1, and 17.5 and the footnote to 

Figure 12A–3) to ASTM D6784, 

Standard Test Method for Elemental, 

Oxidized, Particle-Bound and Total 

Mercury in Flue Gas Generated from 

Coal-Fired Stationary Sources (Ontario 

Hydro Method), to update them from 

the 2002 version to the latest version, 

which was authorized in 2016. 

The capabilities of mercury CEMS 

have been improving since initially 

being deployed to support regulations 

over a decade ago. Therefore, we are 

proposing to revise section 13.3 to 

modify the alternative relative accuracy 

criterion such that: (1) It would apply 

only at mercury concentrations less than 

2.5 mg/scm and (2) the difference 

between the average reference method 

and CEMS values added to the 

confidence coefficient would now be 0.5 

mg/scm. This revised criterion is 

consistent with revisions that we made 

to the mercury monitoring requirements 

in 40 CFR 63, subpart UUUUU (81 FR 

20172, April 6, 2016). 

Q. Performance Specification 16 of 

Appendix B of Part 60 

In Performance Specification 16, 

several corrections and modifications 

would be made to clarify the intent of 

the requirements. In section 1.1, we 

would correct the language to make it 

clear that if a PEMS (predictive 

emission monitoring system) contains a 

diluent component, then the diluent 

component must be tested as well. Also, 

in section 1.1, the language referring to 

PS–17 would be removed since PS–17 

was never promulgated. In sections 3.11 

and 3.12, language would be added to 

define commonly used acronyms, and 

in section 3.12, the language would be 

corrected to indicate that the relative 

accuracy test audit (RATA) is to be 

conducted as specified in section 8.2. In 

section 9.1, the QA/QC Summary chart 

would be corrected to reflect the 

language found in section 2.2, which 

indicates that the relative accuracy audit 

(RAA) is required on all PEMS and not 

just those classified as compliance 

PEMS. The QA/QC Summary Chart is 

also modified to align the criteria for a 

RAA with that found in section 13.5. In 

section 9.4, the language stating a RATA 

is to be conducted at the normal 

operating level would be corrected to 

indicate the RATA is to be conducted as 

specified in section 8.2 and to remove 

the statement that the statistical tests in 

section 8.3 are not required for the 

yearly RATA. In section 12.3.2, the 

alternative criteria language would be 

removed because it does not apply to Ffactor determinations. In sections 13.1 

and 13.5, the language would be 

modified to add the corresponding 

alternative criteria in units of lb/mmBtu. 

R. Procedure 1 of Appendix F of Part 60 

In Procedure 1, in section 4.1, a 

sentence would be added to clarify that 

during a calibration, the reference gas is 

to be introduced into the sampling 

system prior to any sample conditioning 

or filtration equipment and must pass 

through as much of the probe as is 

practical. Section 5.2.3 (2) would be 

modified to refine the alternative 

cylinder gas audit (CGA) criteria in 

response to the use of analyzers with 

lower span values. In section 6.2, in 

order to provide clarity and clear up any 

confusion, we would remove the 

language referring to the relevant 

performance specification and insert the 

language referring to the use of Equation 

1–1. 

S. Procedure 5 of Appendix F of Part 60 

Regulated entities have pointed out 

that we did not include criteria for the 

system integrity check required in 

Procedure 5. In section 2.5, we would 

clarify that ongoing daily calibration of 

the Hg CEMS must be conducted using 

elemental mercury reference gas. This is 

consistent with revisions that we made 

to the Hg monitoring requirements in 40 

CFR 63, subpart UUUUU (81 FR 20172, 

April 6, 2016). We would revise the title 

of section 4.0 and add section 4.4 to 

explain more explicitly the procedure 

for conducting the system integrity 

check as well as to provide the criteria 

for passing the check. In section 5.1.3, 

to add clarity we would insert language 

referring to Equation 1–1 of Procedure 1 

for calculating relative accuracy. 

T. General Provisions (Subpart A) of 

Part 63 

In the General Provisions of part 63, 

§ 63.14 would be revised to: (1) Add 

ASTM D6784–16 to redesignated 

paragraph (i) and (2) add ‘‘Standard 

Methods for the Examination of Water 

and Wastewater’’ Method 5210B to new 

paragraph (d). 

U. National Emission Standards for 

Hazardous Air Pollutants From the Pulp 

and Paper Industry (Subpart S) of Part 

63 

In subpart S, the existing reference in 

40 CFR 63.457(c)(4) to Method 405.1 of 

part 136 of chapter 40 for the 

measurement of biochemical oxygen 

demand (BOD) is no longer valid, as 

Method 405.1 was withdrawn in 2007. 

It was replaced with Biochemical 

Oxygen Demand Standard Methods 

5210 B (72 FR 11199, March 12, 2007), 

which has been previously approved in 

test plans for measuring BOD to 

demonstrate compliance with the 

requirements of subpart S. In 

§ 63.457(c)(4), Method 405.1 would be 

updated to reference Method 5210B. 

This method would also be incorporated 

by reference in 40 CFR 63.14. 

V. Standards of Performance for 

Hazardous Air Pollutants From 

Hazardous Waste Combustors (Subpart 

EEE) of Part 63 

In the appendix to subpart EEE, we 

would remove the erroneous language 

regarding an Interference Response Test 

in the introductory paragraph of section 

5 and section 5.3 in its entirety. 

W. National Emission Standards for 

Hazardous Air Pollutants: Paper and 

Other Web Coating (Subpart JJJJ) of Part 

63 

In 2009, revisions were made to 

§ 63.3360(e)(1)(viii) to clarify that the 


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results of Method 25 or Method 25A 

were being used to determine ‘‘total 

organic volatile matter’’ (85 FR 41276). 

At the time, the use of the terminology 

‘‘total gaseous non-methane organic 

volatile organic matter’’ in 

§ 63.3360(e)(1)(vi) was overlooked. We 

are proposing to revise 

§ 63.3360(e)(1)(vi) by removing the term 

‘‘non-methane’’ to be consistent with 

§ 63.3360(e)(1)(viii). 

X. National Emission Standards for 

Hazardous Air Pollutants for Stationary 

Reciprocating Internal Combustion 

Engines (Subpart ZZZZ) of Part 63 

We have received multiple inquiries 

regarding the requirements in Table 4 of 

Subpart ZZZZ to measure the exhaust 

gas moisture when measuring the 

concentration of carbon monoxide (CO), 

formaldehyde, or THC to demonstrate 

compliance with the rule. It was first 

pointed out that it is not always 

necessary to measure that exhaust gas 

moisture when measuring CO. We 

would add language to all three sections 

of Table 4 stating that that the moisture 

measurement is only necessary when 

needed to correct the CO, formaldehyde, 

THC and/or O2 measurements to a dry 

basis. 

Y. National Emission Standards for 

Hazardous Air Pollutants: Engine Test 

Cells/Stands Residual Risk and 

Technology Review (Subpart PPPPP) of 

Part 63 

In subpart PPPPP, the existing 

erroneous statement in 

§ 63.9306(d)(2)(iv) would be corrected to 

read, ‘‘Using a pressure sensor with 

measurement sensitivity of 0.002 inches 

water, check gauge calibration quarterly 

and transducer calibration monthly.’’ 

Also, in subpart PPPPP, the existing 

erroneous statement in § 63.9322(a)(1) 

would be corrected to read, ‘‘The 

capture system meets the criteria in 

Method 204 of appendix M to 40 CFR 

part 51 for a permanent total enclosure 

(PE) and directs all the exhaust gases 

from the enclosure to an add-on control 

device.’’ 

Z. National Emission Standards for 

Hazardous Air Pollutants: Coal- and 

Oil-Fired Electric Utility Steam 

Generating Units (Subpart UUUUU) of 

Part 63 

We are proposing to revise the 

references in sections 4.1.1.5 and 

4.1.1.5.1 in subpart UUUUU, appendix 

A to ASTM Method D6784, Standard 

Test Method for Elemental, Oxidized, 

Particle-Bound and Total Mercury in 

Flue Gas Generated from Coal-Fired 

Stationary Sources (Ontario Hydro 

Method), to update them from the 2002 

version to the latest version, which was 

authorized in 2016. In table 5, we are 

proposing to add ASTM Method D6784– 

16 as a mercury testing option as it was 

inadvertently left out previously. 

AA. Method 315 of Appendix A of Part 

63 

Section 16.2 is mislabeled as section 

6.2 and would be corrected. 

BB. Method 323 of Appendix A of Part 

63 

In Method 323, sections 10.1 and 10.3 

would be revised to require best 

laboratory practices. The nomenclature 

in section 12.1 would be revised to 

include ‘‘b,’’ which is the intercept of 

the calibration curve at zero 

concentration and revise Kc; these 

additions are necessary because 

equation 323–5 in section 12.6 would be 

revised to reflect changes in calibration 

procedures for calculating the mass of 

formaldehyde. 

VI. Statutory and Executive Order 

Reviews 

Additional information about these 

statutes and Executive Orders can be 

found at https://www2.epa.gov/lawsregulations/laws-and-executive-orders. 

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 and was, therefore, not 

submitted to the Office of Management 

and Budget (OMB) for review. 

B. Paperwork Reduction Act (PRA) 

This action does not impose an 

information collection burden under the 

PRA. The amendments being proposed 

in this action to the test methods, 

performance specifications, and testing 

regulations only make corrections and 

minor updates to existing testing 

methodology. In addition, the proposed 

amendments clarify 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. This action will not 

impose any requirements on small 

entities. This proposed rule will not 

impose emission measurement 

requirements beyond those specified in 

the current regulations, nor does it 

change any emission standard. 

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 would correct 

and update existing testing regulations. 

Thus, Executive Order 13175 does not 

apply to this action. 

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 and 1 CFR Part 51 

This action involves technical 

standards. The EPA proposes to use 

ASTM D6216–20 for continuous opacity 

monitors in Performance Specification 

1. The ASTM D6216–20 standard covers 

the procedure for certifying continuous 

opacity monitors and includes design 

and performance specifications, test 

procedures, and QA requirements to 

ensure that continuous opacity monitors 

meet minimum design and calibration 

requirements, necessary in part, for 

accurate opacity monitoring 

measurements in regulatory 

environmental opacity monitoring 

applications subject to 10 percent or 


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higher opacity standards. The EPA also 

proposes to update the version of ASTM 

D6784, a test method for elemental, 

oxidized, particle-bound, and total 

mercury in emissions from stationary 

sources, from the 2002 to 2016 version 

in the references contained in 40 CFR 

part 60, appendix B, Performance 

Specification 12A for continuous 

monitoring of mercury emissions. 

Likewise, EPA proposes to update the 

version of ASTM D6784 referenced in 

table 5 and appendix A of Subpart 

UUUUU in 40 CFR part 63, for mercury 

emissions measurement and monitoring. 

The ASTM D6216–20 and D6784–16 

standards were developed and adopted 

by the American Society for Testing and 

Materials. The 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. 

The EPA also proposes to use the 

APHA Method 5210 Biochemical 

Oxygen Demand (BOD) from ‘‘Standard 

Methods for the Examination of Water 

and Wastewater.’’ This standard is 

acceptable as an alternative to Method 

405.1 and is available from APHA at 

www.standardmethods.org or by 

telephone at (844) 232–3707. 

Additionally, the EPA proposes 

language intended to correct a portion of 

the ASTM E2515–11 test method. The 

stipulations would modify the post-test 

leak check procedures as well as add 

procedures for performing leak checks 

during a sampling run. The stipulations 

to ASTM E2515–11 are necessary as we 

have learned that the quality assurance/ 

quality control (QA/QC) requirements 

for leak tests required by ASTM E2515– 

11, section 9.6.5.1 are not sufficient to 

provide assurance of the sampling 

system integrity. Additionally, the 

language of ASTM E2515–11, section 

9.6.5.1 currently allows for averaging 

the PM results from a non-leaking 

sampling system with those from a 

leaking sampling system which 

effectively reduces reported PM 

emissions by as much as half, rendering 

the test method inappropriate for 

compliance determination. 

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 

would correct and update existing 

testing regulations. 

List of Subjects 

40 CFR Part 51 

Environmental protection, Air 

pollution control, Performance 

specifications, Test methods and 

procedures. 

40 CFR Part 60 

Environmental protection, Air 

pollution control, Incorporation by 

reference, Performance specifications, 

Test methods and procedures. 

40 CFR Part 63 

Environmental protection, Air 

pollution control, Incorporation by 

reference, Performance specifications, 

Test methods and procedures. 

Michael S. Regan, 

Administrator. 

For the reasons set forth in the 

preamble, the Environmental Protection 

Agency proposes to amend title 40, 

chapter I of the Code of Federal 

Regulations as follows: 

PART 51—REQUIREMENTS FOR 

PREPARATION, ADOPTION, AND 

SUBMITTAL OF IMPLEMENTATION 

PLANS 

■ 1. The authority citation for part 51 

continues to read as follows: 

Authority: 23 U.S.C. 101; 42 U.S.C. 7401– 

7671q. 

■ 2. Amend section 12.5 in Method 

201A of appendix M to part 51 by 

revising Eq. 25 to read as follows: 

Appendix M to Part 51—Recommended 

Test Methods for State Implementation 

Plans 

* * * * * 

Method 201A—Determination of PM10 and 

PM2.5 Emissions From Stationary Sources 

(Constant Sampling Rate Procedure) 

* * * * * 

12.5 Equations. Use the following 

equations to complete the calculations 

required in this test method. 

* * * * * 

* * * * * 

PART 60—STANDARDS OF 

PERFORMANCE FOR NEW 

STATIONARY SOURCES 

■ 3. The authority citation of part 60 is 

revised to read as follows: 

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

■ 4. In § 60.17: 

■ a. Revise paragraphs (a) and (h)(179) 

and (191); 

■ b. Redesignate paragraphs (h)(193) 

through (h)(212) as (h)(194) through 

(h)(213) respectively; and 

■ c. Add new paragraph (h)(193). 

The additions and revisions read as 

follows: 

§ 60.17 Incorporations by reference. 

(a) Certain material is incorporated by 

reference into this part with the 

approval of the Director of the Federal 

Register under 5 U.S.C. 552(a) and 1 

CFR part 51. To enforce any edition 

other than that specified in this section, 

the EPA must publish a document in the 

Federal Register and the material must 

be available to the public. All approved 

material is available for inspection at 

the EPA and the National Archives and 

Records Administration (NARA). 

Contact EPA at: The EPA Docket Center, 

Public Reading Room, EPA WJC West, 

Room 3334, 1301 Constitution Ave. NW, 

Washington, DC, phone (202) 566–1744. 

For information on the availability of 

this material at NARA, email 

fr.inspection@nara.gov, or go to 

www.archives.gov/federal-register/cfr/ 

ibr-locations.html. The material may be 

obtained from the source(s) in the 

following paragraph(s) of this section. 

* * * * * 

(h) * * * 

(179) ASTM D6216–20, Standard 

Practice for Opacity Monitor 

Manufacturers to Certify Conformance 

with Design and Performance 

Specifications, 2020; IBR approved for 

appendix B: Performance Specification 

1. 

* * * * * 

(191) ASTM D6784–02, Standard Test 

Method for Elemental, Oxidized, 

Particle-Bound and Total Mercury in 

Flue Gas Generated from Coal-Fired 

Stationary Sources (Ontario Hydro 

Method); IBR approved for § 60.56c(b). 

* * * * * 

(193) ASTM D6784–16, Standard Test 

Method for Elemental, Oxidized, 

Particle-Bound and Total Mercury in 

Flue Gas Generated from Coal-Fired 

Stationary Sources (Ontario Hydro 

Method), 2016; IBR approved for 

appendix B: Performance Specification 

12A. 

* * * * * 

■ 5. Amend § 60.534 by revising 

paragraphs (c) and (d) to read as follows: 

§ 60.534 What test methods and 

procedures must I use to determine 

compliance with the standards and 

requirements for certification? 

* * * * * 

(c) For affected wood heaters subject 

to the 2015 and 2020 particulate matter 

emission standards specified in 

§ 60.532(a), (b) and (c), particulate 


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matter emission concentrations must be 

measured with ASTM E2515–11 (IBR, 

see § 60.17) with the following 

exceptions: Eliminate section 9.6.5.1 of 

ASTM E2515–11 and perform the posttest leak checks as described in 

paragraph (c)(1) of this section. 

Additionally, if a component change of 

either sampling train is needed during 

sampling, then perform the leak check 

specified in paragraph (c)(2) of this 

section. Four-inch filters and Teflon 

membrane filters or Teflon-coated glass 

fiber filters may be used in ASTM 

E2515–11. 

(1) Post-Test Leak Check: A leak 

check of each sampling train is 

mandatory at the conclusion of each 

sampling run before sample recovery. 

The leak check must be performed in 

accordance with the procedures of 

ASTM E2515–11, section 9.6.4.1 (IBR, 

see § 60.17), except that it must be 

conducted at a vacuum equal to or 

greater than the maximum value 

reached during the sampling run. If the 

leakage rate is found to be no greater 

than 0.0003 m3/min (0.01 cfm) or 4% of 

the average sampling rate (whichever is 

less), the leak check results are 

acceptable. If a higher leakage rate is 

obtained, the sampling run is invalid. 

(2) Leak Checks During Sample Run: 

If, during a sampling run, a component 

(e.g., filter assembly) change becomes 

necessary, a leak check must be 

conducted immediately before the 

change is made. The leak check must be 

done according to the procedure 

outlined in ASTM E2515–11, section 

9.6.4.1 (IBR, see § 60.17), except that it 

must be done at a vacuum equal to or 

greater than the maximum value 

recorded up to that point in the 

sampling run. If the leakage rate is 

found to be no greater than 0.0003 m3/ 

min (0.01 cfm) or 4% of the average 

sampling rate (whichever is less), the 

leak check results are acceptable. If a 

higher leakage rate is obtained, the 

sampling run is invalid. 

Note 1 to paragraph (c)(2): Immediately 

after component changes, leak checks are 

optional but highly recommended. If such 

leak checks are done, the procedure in 

paragraph (c)(1) of this section should be 

used. 

(d) For all tests conducted using 

ASTM E2515–11 (IBR, see § 60.17), with 

the exceptions described in § paragraphs 

(c)(1) and (2) of this section, and 

pursuant to this section, the 

manufacturer and approved test 

laboratory must also measure the first 

hour of particulate matter emissions for 

each test run by sampling with a third, 

identical and independent sampling 

train operated concurrently for the first 

hour of PM paired train compliance 

testing according to paragraph (c) of this 

section. The manufacturer and approved 

test laboratory must report the test 

results from this third train separately as 

the first hour emissions. 

* * * * * 

■ 6. Amend § 60.539b by revising 

paragraph (b) to read as follows: 

§ 60.539b What parts of the General 

Provisions do not apply to me? 

* * * * * 

(b) Section 60.8(a), (c), (d), (e), (f) (1), 

and (g); 

* * * * * 

■ 7. Amend § 60.5474 by revising 

paragraph (b)(2), (3) and (6) to read as 

follows: 

§ 60.5474 What standards and 

requirements must I meet and by when? 

* * * * * 

(b) * * * 

(2) 2020 residential hydronic heater 

particulate matter emission limit: 0.10 

lb/mmBtu (0.043 g/MJ) heat output per 

individual burn rate as determined by 

the crib wood test methods and 

procedures in § 60.5476 or an 

alternative crib wood test method 

approved by the Administrator. 

(3) 2020 residential hydronic heater 

cord wood alternative compliance 

option for particulate matter emission 

limit: 0.15 lb/mmBtu (0.064 g/MJ) heat 

output per individual burn rate as 

determined by the cord wood test 

methods and procedures in § 60.5476 or 

an alternative cord wood test method 

approved by the Administrator. 

* * * * * 

(6) 2020 forced-air furnace particulate 

matter emission limit: 0.15 lb/mmBtu 

(0.064 g/MJ) heat output per individual 

burn rate as determined by the cord 

wood test methods and procedures in 

§ 60.5476 or cord wood test methods 

approved by the Administrator. 

* * * * * 

■ 9. Amend § 60.5476 by removing 

paragraph (c)(5) and (6) and revising 

paragraph (f). 

The revision reads as follows: 

§ 60.5476 What test methods and 

procedures must I use to determine 

compliance with the standards and 

requirements for certification? 

* * * * * 

(f) For affected wood heaters subject 

to the particulate matter emission 

standards, particulate matter emission 

concentrations must be measured with 

ASTM E2515–11 (IBR, see § 60.17) with 

the following exceptions, eliminate 

section 9.6.5.1 of ASTM E2515–11 and 

perform the post-test leak checks as 

described in paragraph (f)(1) of this 

section. Additionally, if a component 

change of either sampling train is 

needed during sampling, then perform 

the leak check specified in paragraph 

(f)(2 of this section). Four-inch filters 

and Teflon membrane filters or Tefloncoated glass fiber filters may be used in 

ASTM E2515–11. For all tests 

conducted using ASTM 2515–11, with 

the exceptions described in paragraphs 

(f)(1) and (2) of this section, the 

manufacturer and approved test 

laboratory must also measure the first 

hour of particulate matter emissions for 

each test run by sampling with a third, 

identical and independent sampling 

train operated concurrently with the 

first hour of PM paired train compliance 

testing. The manufacturer and approved 

test laboratory must report the test 

results for this third train separately as 

the first hour emissions. 

(1) Post-Test Leak Check: A leak 

check of each sampling train is 

mandatory at the conclusion of each 

sampling run before sample recovery. 

The leak check must be performed in 

accordance with the procedures of 

ASTM E2515–11, section 9.6.4.1 (IBR, 

see § 60.17), except that it must be 

conducted at a vacuum equal to or 

greater than the maximum value 

reached during the sampling run. If the 

leakage rate is found to be no greater 

than 0.0003 m3/min (0.01 cfm) or 4% of 

the average sampling rate (whichever is 

less), the leak check results are 

acceptable. If a higher leakage rate is 

obtained, the sampling run is invalid. 

(2) Leak Checks During Sample Run: 

If, during a sampling run, a component 

(e.g., filter assembly) change becomes 

necessary, a leak check must be 

conducted immediately before the 

change is made. The leak check must be 

done according to the procedure 

outlined in ASTM E2515–11, section 

9.6.4.1 (IBR, see § 60.17), except that it 

must be done at a vacuum equal to or 

greater than the maximum value 

recorded up to that point in the 

sampling run. If the leakage rate is 

found to be no greater than 0.0003 m3/ 

min (0.01 cfm) or 4% of the average 

sampling rate (whichever is less), the 

leak check results are acceptable. If a 

higher leakage rate is obtained, the 

sampling run is invalid. 

Note 1 to paragraph (f)(2): Immediately 

after component changes, leak checks are 

optional but highly recommended. If such 

leak checks are done, the procedure in 

paragraph (f)(1) of this section should be 

used. 

* * * * * 

■ 10. Amend § 60.5483 by revising 

paragraph (b) to read as follows: 


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§ 60.5483 What parts of the General 

Provisions do not apply to me? 

* * * * * 

(b) Section 60.8(a), (c), (d), (e), (f) (1), 

and (g); 

* * * * * 

■ 11. Amend Appendix A–1 to part 60 

by revising sections 11.5, 11.5.1, and 

11.5.2, and Table 1–2 in Method 1 to 

read as follows: 

Appendix A–1 to Part 60—Test 

Methods 1 Through 2F 

* * * * * 

Method 1—Sample and Velocity Traverses 

For Stationary Sources 

* * * * * 

11.5 Alternative Measurement Site 

Selection Procedure. The alternative site 

selection procedure may be used to 

determine the rotation angles in lieu of the 

procedure outlined in section 11.4. 

11.5.1 This alternative procedure applies 

to sources where measurement locations are 

less than 2 equivalent or duct diameters 

downstream or less than one-half duct 

diameter upstream from a flow disturbance. 

The alternative should be limited to ducts 

larger than 24 inches in diameter where 

blockage and wall effects are minimal. A 

directional flow-sensing probe is used to 

measure pitch and yaw angles of the gas flow 

at 40 or more traverse points; the resultant 

angle is calculated and compared with 

acceptable criteria for mean and standard 

deviation. 

Note: Both the pitch and yaw angles are 

measured from a line passing through the 

traverse point and parallel to the stack axis. 

The pitch angle is the angle of the gas flow 

component in the plane that INCLUDES the 

traverse line and is parallel to the stack axis. 

The yaw angle is the angle of the gas flow 

component in the plane PERPENDICULAR to 

the traverse line at the traverse point and is 

measured from the line passing through the 

traverse point and parallel to the stack axis. 

11.5.2 Traverse Points. Use a minimum of 

40 traverse points for circular ducts and 42 

points for rectangular ducts for the gas flow 

angle determinations. Follow the procedure 

outlined in section 11.3 and Table 1–1 or 1– 

2 of this method for the location and layout 

of the traverse points. If the alternative 

measurement location is determined to be 

acceptable according to the criteria in this 

alternative procedure, use the same 

minimum of 40 traverse points for circular 

ducts and 42 points for rectangular ducts that 

were used in the alternative measurement 

procedure for future sampling and velocity 

measurements. 

* * * * * 

TABLE 1–2—LOCATION OF TRAVERSE POINTS IN CIRCULAR STACKS

[Percent of stack diameter from inside wall to traverse point] 

Traverse point number 

on a diameter 

Number of traverse points on a diameter 

2 4 6 8 10 12 14 16 18 20 22 24 

1 ....................................... 14.6 6.7 4.4 3.2 2.6 2.1 1.8 1.6 1.4 1.3 1.1 1.1 

2 ....................................... 85.4 25.0 14.6 10.5 8.2 6.7 5.7 4.9 4.4 3.9 3.5 3.2 

3 ....................................... ............ 75.0 29.6 19.4 14.6 11.8 9.9 8.5 7.5 6.7 6.0 5.5 

4 ....................................... ............ 93.3 70.4 32.3 22.6 17.7 14.6 12.5 10.9 9.7 8.7 7.9 

5 ....................................... ............ ............ 85.4 67.7 34.2 25.0 20.1 16.9 14.6 12.9 11.6 10.5 

6 ....................................... ............ ............ 95.6 80.6 65.8 35.6 26.9 22.0 18.8 16.5 14.6 13.2 

7 ....................................... ............ ............ ............ 89.5 77.4 64.4 36.6 28.3 23.6 20.4 18.0 16.1 

8 ....................................... ............ ............ ............ 96.8 85.4 75.0 63.4 37.5 29.6 25.0 21.8 19.4 

9 ....................................... ............ ............ ............ ............ 91.8 82.3 73.1 62.5 38.2 30.6 26.2 23.0

10 ..................................... ............ ............ ............ ............ 97.4 88.2 79.9 71.7 61.8 38.8 31.5 27.2 

11 ..................................... ............ ............ ............ ............ ............ 93.3 85.4 78.0 70.4 61.2 39.3 32.3 

12 ..................................... ............ ............ ............ ............ ............ 97.9 90.1 83.1 76.4 69.4 60.7 39.8 

13 ..................................... ............ ............ ............ ............ ............ ............ 94.3 87.5 81.2 75.0 68.5 60.2 

14 ..................................... ............ ............ ............ ............ ............ ............ 98.2 91.5 85.4 79.6 73.8 67.7 

15 ..................................... ............ ............ ............ ............ ............ ............ ............ 95.1 89.1 83.5 78.2 72.8 

16 ..................................... ............ ............ ............ ............ ............ ............ ............ 98.4 92.5 87.1 82.0 77.0 

17 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ 95.6 90.3 85.4 80.6 

18 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ 98.6 93.3 88.4 83.9 

19 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ 96.1 91.3 86.8 

20 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ 98.7 94.0 89.5 

21 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ 96.5 92.1 

22 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ 98.9 94.5 

23 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ 96.8 

24 ..................................... ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ 98.9 

* * * * * 

■ 12. Amend Method 4 in Appendix A– 

3 to part 60 by revising Figure 4–3 to 

read as follows: 

Appendix A–3 to Part 60—Test 

Methods 4 Through 5I 

* * * * * 

Method 4—Determination of Moisture 

Content in Stack Gases 

* * * * * 


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* * * * * 

■ 13. Amend Appendix A–4 to part 60 

by revising section 10.1.3 in Method 7 

of to read as follows: 

Appendix A–4 to Part 60—Test 

Methods 6 Through 10B 

* * * * * 

Method 7—Determination of Nitrogen Oxide 

Emissions From Stationary Sources 

* * * * * 

10.1.3 Spectrophotometer Calibration 

Quality Control. Multiply the absorbance 

value obtained for each standard by the Kc

factor (reciprocal of the least squares slope) 

to determine the distance each calibration 

point lies from the theoretical calibration 

line. The difference between the calculated 

concentration values and the actual 

concentrations (i.e., 100, 200, 300, and 400 mg 

NO2) shall be less than 7 percent for all 

standards. 

* * * * * 

■ 16. Amend Appendix A–7 to part 60 

by: 

■ a. In Method 19, revising Equation 19– 

5; 

■ b. In Method 25, adding sections 12.9 

and 12.9.1 through 12.9.16, and revising 

Figure 25–6; and 

■ c. In Method 25C, revising section 

12.1. 

The revisions and additions read as 

follows: 

Appendix A–7 to Part 60—Test 

Methods 19 Through 25E 

* * * * * 

Method 19—Determination of Sulfur Dioxide 

Removal Efficiency and Particulate Matter, 

Sulfur Dioxide, and Nitrogen Oxide 

Emission Rates 

* * * * * 

* * * * * 

Method 25—Determination of Total Gaseous 

Nonmethane Organic Emissions As Carbon 

* * * * * 

12.9 Record and Report Initial Method 

Checks as follows: 

12.9.1 Calibration and Linearity Check Gas 

Certifications (Section 7.2 and 7.4) 

12.9.2 Condensate Trap Blank Check 

(Section 8.1.1) 

12.9.3 Pretest Leak-Check (Section 8.1.4) 

12.9.4 Condensate Recovery Apparatus 

(Section 10.1.1) 

12.9.5 Carrier Gas and Auxiliary O2 Blank 

Check (Section 10.1.1.1) 

12.9.6 Oxidation Catalyst Efficiency Check. 

(Section 10.1.1.2) 

12.9.7 System Performance Check. 

(Section10.1.1.3) 

12.9.8 Oxidation Catalyst Efficiency Check. 

(Section 10.1.2.1) 

12.9.9 Reduction Catalyst Efficiency Check 

(Section 10.1.2.2) 

12.9.10 NMO Analyzer Linearity Check 

Calibration. (Section 10.1.2.3) 

12.9.11 NMO Analyzer Daily Calibration. 

(Section 10.2) 

12.9.12 Condensate Recovery. (Section 

11.1) 

12.9.13 Daily Performance Checks. (Section 

11.1.1) 

12.9.14 Leak-Check. (Section 11.1.1.1) 

12.9.15 System Background Test. (Section 

11.1.1.2) 


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12.9.16 Oxidation Catalyst Efficiency 

Check. (Section 11.1.1.3) 

* * * * * 

* * * * * 

Method 25C—Determination of Nonmethane 

Organic Compounds (NMOC) in Landfill 

Gases 

* * * * * 

12.1 Nomenclature. 

* * * * * 

CN2 = N2 concentration in the landfill gas 

sample 

CmN2 = Measured N2 concentration, diluted 

landfill gas sample 

* * * * * 

■ 17. In Appendix A–8 to part 60: 

■ a. Revise sections 12.4 and 12.5 in 

Method 26. 

■ b. Revise section 13.8 in Test Method 

28WHH. 

The revisions read as follows: 

Appendix A–8 to Part 60—Test 

Methods 26 Through 30B 

* * * * * 

Method 26—Determination of Hydrogen 

Halide and Halogen Emissions From 

Stationary Sources Non-Isokinetic Method 

* * * * * 

12.4 Total ug HCl, HBr, or HF Per 

Sample. 

12.5 Total ug Cl2 or Br2 Per Sample. 

* * * * * 

Test Method 28WHH for Measurement of 

Particulate Emissions and Heating Efficiency 

of Wood-Fired Hydronic Heating Appliances 

* * * * * 

13.8 Carbon Monoxide Emissions. 

For each minute of the test period, the 

carbon monoxide emissions rate (g/min) shall 

be calculated as: 


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Total CO emissions for each of the four test 

periods (CO_1, CO_2, CO_3, CO_4) shall be 

calculated as the sum of the emissions rates 

for each of the 1-minute intervals. 

Total CO emissions for the test run, COT, 

shall be calculated as the sum of CO_1, CO_2, 

CO_3 and CO_4. 

* * * * * 

■ 18. Amend Appendix B to part 60 by: 

■ a. In Performance Specification 1, 

revising sections 2.1, 3.1, 6.1, 8.1(1), 

8.1(2)(iii), 8.1(3)(ii), 8.2(1), 8.2(2), 8.2(3), 

9.0, 12.1, 13.1, 13.2, and 16.0 reference 

8; 

■ b. In Performance Specification 2, 

revising sections 8.3.3 and 12.5; 

■ c. Revising Performance Specification 

4B; 

■ d. In Performance Specification 6, 

revising section 13.2; 

■ e. In Performance Specification 12A, 

revising sections 8.4.2, 8.4.4, 8.4.5, 

8.4.6.1, 13.3, 17.5, and footnote to 

Figure 12A–3; 

■ f. In Performance Specification 16, 

revising sections 1.1, 3.11, 3.12, 9.1, 9.4, 

12.3.2, 13.1, and 13.5. 

The revisions 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 

* * * * * 

2.1 ASTM D6216 (IBR, see § 60.17) is the 

reference for design specifications, 

manufacturer’s performance specifications, 

and test procedures. The opacity monitor 

manufacturer must periodically select and 

test an opacity monitor, that is representative 

of a group of monitors produced during a 

specified period or lot, for conformance with 

the design specifications in ASTM D6216. 

The opacity monitor manufacturer must test 

each opacity monitor for conformance with 

the manufacturer’s performance 

specifications in ASTM D6216. Note: If the 

initial certification of the opacity monitor 

occurred before [the effective date of the final 

rule] using ASTM D6216–98, D6216–03, 

D6216–07, or D6216–12, it is not necessary 

to recertify using ASTM D6216–20. 

* * * * * 

3.1 All definitions and discussions from 

section 3 of ASTM D6216 are applicable to 

PS–1. 

* * * * * 

6.1 Continuous Opacity Monitoring 

System. You, as owner or operator, are 

responsible for purchasing an opacity 

monitor that meets the specifications of 

ASTM D6216, including a suitable data 

recorder or automated data acquisition 

handling system. Example data recorders 

include an analog strip chart recorder or 

more appropriately an electronic data 

acquisition and reporting system with an 

input signal range compatible with the 

analyzer output. 

* * * * * 

8.1 * * * 

(1) You must purchase an opacity monitor 

that complies with ASTM D6216 and obtain 

a certificate of conformance from the opacity 

monitor manufacturer. 

(2) * * * 

(iii) Alternative Locations and Light Beam 

Paths. You may select locations and light 

beam paths, other than those cited above, if 

you demonstrate, to the satisfaction of the 

Administrator or delegated agent, that the 

average opacity measured at the alternative 

location or path is equivalent to the opacity 

as measured at a location meeting the criteria 

of sections 8.1(2)(i) and 8.1(2)(ii). The opacity 

at the alternative location is considered 

equivalent if {1} the average opacity value 

measured at the alternative location is within 

±10 percent of the average opacity value 

measured at the location meeting the 

installation criteria, and {2} the difference 

between any two average opacity values is 

less than 2 percent opacity (absolute). You 

use the following procedure to conduct this 

demonstration: Simultaneously measure the 

opacities at the two locations or paths for a 

minimum period of time (e.g., 180-minutes) 

covering the range of normal operating 

conditions and compare the results. You may 

use alternative procedures for determining 

acceptable locations if those procedures are 

approved by the Administrator. 

(3) * * * 

(ii) Calibration Error Check. Conduct a 

three-point calibration error test using three 

calibration attenuators that produce outlet 

pathlength corrected, single-pass opacity 

values shown in ASTM D6216, section 7.5. 

If your applicable limit is less than 10 

percent opacity, use attenuators as described 

in ASTM D6216, section 7.5 for applicable 

standards of 10 to 19 percent opacity. 

Confirm the external audit device produces 

the proper zero value on the COMS data 

recorder. Separately, insert each calibration 

attenuators (low, mid, and high-level) into 

the external audit device. While inserting 

each attenuator, {1} ensure that the entire 

light beam passes through the attenuator, {2} 

minimize interference from reflected light, 

and {3} leave the attenuator in place for at 

least two times the shortest recording interval 

on the COMS data recorder. Make a total of 

five nonconsecutive readings for each 

attenuator. At the end of the test, correlate 

each attenuator insertion to the 

corresponding value from the data recorder. 

Subtract the single-pass calibration 

attenuator values corrected to the stack exit 

conditions from the COMS responses. 

Calculate the arithmetic mean difference, 

standard deviation, and confidence 

coefficient of the five measurements value 

using equations 1–3, 1–4, and 1–5. Calculate 

the calibration error as the sum of the 

absolute value of the mean difference and the 

95 percent confidence coefficient for each of 

the three test attenuators using equation 1– 

6. Report the calibration error test results for 

each of the three attenuators. 

* * * * * 

8.2 * * * 

(1) Conduct the verification procedures for 

design specifications in section 6 of ASTM 

D6216. 

(2) Conduct the verification procedures for 

performance specifications in section 7 of 

ASTM D6216. 

(3) Provide to the owner or operator, a 

report of the opacity monitor’s conformance 

to the design and performance specifications 

required in sections 6 and 7 of ASTM D6216 

in accordance with the reporting 

requirements of section 9 in ASTM D6216. 

9.0 What quality control measures are 

required by PS–1? 

Opacity monitor manufacturers must 

initiate a quality program following the 

requirements of ASTM D6216, section 8. The 

quality program must include: 

(1) A quality system and 

(2) A corrective action program. 

* * * * * 

12.1 Desired Attenuator Values. Calculate 

the desired attenuator value corrected to the 

emission outlet pathlength as follows: 

Where: 

OP1 = Nominal opacity value of required 

low-, mid-, or high-range calibration 

attenuators. 

OP2 = Desired attenuator opacity value from 

ASTM D6216, section 7.5 at the opacity 

limit required by the applicable subpart. 

L1 = Monitoring pathlength. 

L2 = Emission outlet pathlength. 

* * * * * 

13.1 Design Specifications. The opacity 

monitoring equipment must comply with the 

design specifications of ASTM D6216. 

13.2 Manufacturer’s Performance 

Specifications. The opacity monitor must 

comply with the manufacturer’s performance 

specifications of ASTM D6216. 

* * * * * 

16.0 * * * 

8. ASTM D6216–20: Standard Practice for 

Opacity Monitor Manufacturers to Certify 

Conformance with Design and Performance 

Specifications. ASTM. September 2020. 

* * * * * 

Performance Specification 2—Specifications 

and Test Procedures for SO2 and NOX

Continuous Emission Monitoring Systems in 

Stationary Sources 

* * * * * 

8.3.3 Conduct the CD test at the two 

points specified in section 6.1.2. Introduce to 

the CEMS the reference gases, gas cells, or 

optical filters (these need not be certified). 

When using reference gases, introduce the 

reference gas prior to any sample 

conditioning or filtration equipment and 

ensure that it passes through all filters, 


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scrubbers, conditioners, and other monitor 

components used during normal sampling. 

The reference gas should pass through as 

much of the sampling probe as practical. 

Record the CEMS response and subtract this 

value from the reference value (see example 

data sheet in Figure 2–1). 

* * * * * 

12.5 Relative Accuracy. Calculate the RA, 

expressed as a percentage, of a set of data as 

follows: 

Where: 

|d| = Absolute value of the mean differences 

(from Equation 2–3). 

|CC| = Absolute value of the confidence 

coefficient (from Equation 2–3). 

RM = Average RM value. In cases where the 

average emissions for the test are less 

than 50 percent of the applicable 

emission standard, substitute the 

applicable emission standard value in 

the denominator of Eq. 2–6 in place of 

the average RM value. In all other cases, 

use RM. 

* * * * * 

Performance Specification 4B— 

Specifications and Test Procedures for 

Carbon Monoxide and Oxygen Continuous 

Monitoring Systems in Stationary Sources 

1.0 Scope and Application 

Analytes 

Analyte CAS No. 

Carbon Monoxide (CO) ........ 630–08–0 

Oxygen (O2) ......................... 7782–44–7 

Applicability 

This specification is to be used for 

evaluating the acceptability of carbon 

monoxide (CO) and oxygen (O2) continuous 

emission monitoring systems (CEMS) at the 

time of or soon after installation and 

whenever specified in the regulations. The 

CEMS may include, for certain stationary 

sources, (a) flow monitoring equipment to 

allow measurement of the dry volume of 

stack effluent sampled, and (b) an automatic 

sampling system. 

This specification is not designed to 

evaluate the installed CEMS’ performance 

over an extended period of time, nor does it 

identify specific calibration techniques and 

auxiliary procedures to assess the CEMS’ 

performance. The source owner or operator, 

however, is responsible to properly calibrate, 

maintain, and operate the CEMS. To evaluate 

the CEMS’ performance, the Administrator 

may require, under section 114 of the Act, 

the operator to conduct CEMS performance 

evaluations at times other than the initial 

test. 

The definitions, installation and 

measurement location specifications, test 

procedures, data reduction procedures, 

reporting requirements, and bibliography are 

the same as in PS 3 (for O2) and PS 4A (for 

CO) except as otherwise noted below. 

Summary of Performance Specification 

Installation and measurement location 

specifications, performance specifications, 

test procedures, and data reduction 

procedures are included in this specification. 

Reference method tests, calibration error 

tests, calibration drift tests, and interferant 

tests are conducted to determine 

conformance of the CEMS with the 

specification. 

Definitions 

The definitions are the same as in section 

3.0 of PS2 with the following definitions 

added: 

Continuous Emission Monitoring System 

(CEMS). This definition is the same as PS 2 

section 3.0 with the following addition. A 

continuous monitor is one in which the 

sample to be analyzed passes the 

measurement section of the analyzer without 

interruption. 

Response Time (RT). The time interval 

between the start of a step change in the 

system input and when the pollutant 

analyzer output reaches 95 percent of the 

final value. 

Calibration Error (CE). The difference 

between the concentration indicated by the 

CEMS and the known concentration 

generated by a calibration source when the 

entire CEMS, including the sampling 

interface is challenged. A CE test procedure 

is performed to document the accuracy and 

linearity of the CEMS over the entire 

measurement range. 

Interferences [Reserved] 

Safety 

This performance specification may 

involve hazardous materials, operations, and 

equipment. This performance specification 

may not address all of the safety problems 

associated with its use. It is the responsibility 

of the user to establish appropriate safety and 

health practices and determine the applicable 

regulatory limitations prior to performing 

this performance specification. The CEMS 

user’s manual should be consulted for 

specific precautions to be taken with regard 

to the analytical procedures. 

Equipment and Supplies 

Same as section 6.0 of PS 2, except for the 

following: 

Data Recorder Scale. For O2, same as 

specified in PS 3, except that the span must 

be 25 percent. The span of the O2 may be 

higher if the O2 concentration at the sampling 

point can be greater than 25 percent. For CO, 

same as specified in PS 4A, except that the 

low-range span must be 200 ppm and the 

high range span must be 3000 ppm. In 

addition, the scale for both CEMS must 

record all readings within a measurement 

range with a resolution of 0.5 percent. 

Reagents and Standards 

Sample Collection, Preservation, Storage, 

and Transport 

Installation and Measurement Location 

Specifications 

The CEMS Installation. This specification 

is the same as PS 2 section 8.1.1 with the 

following additions. Both the CO and O2

monitors should be installed at the same 

general location. If this is not possible, they 

may be installed at different locations if the 

effluent gases at both sample locations are 

not stratified and there is no in-leakage of air 

between sampling locations. 

Measurement Location. Same as PS 2 

section 8.1.2. 

Point CEMS. The measurement point 

should be within or centrally located over the 

centroidal area of the stack or duct cross 

section. 

Path CEMS. The effective measurement 

path should: (1) Have at least 70 percent of 

the path within the inner 50 percent of the 

stack or duct cross sectional area, or (2) be 

centrally located over any part of the 

centroidal area. 

Reference Method (RM) Measurement 

Location and Traverse Points 

This specification is the same as PS 2 

section 8.1.3 with the following additions. 

When pollutant concentration changes are 

due solely to diluent leakage and CO and O2

are simultaneously measured at the same 

location, one half diameter may be used in 

place of two equivalent diameters. 

Pretest Preparation. Install the CEMS, 

prepare the RM test site according to the 

specifications in section 8.1, and prepare the 

CEMS for operation according to the 

manufacturer’s written instructions. 

Stratification Test Procedure. Stratification 

is defined as the difference in excess of 10 

percent between the average concentration in 

the duct or stack and the concentration at any 

point more than 1.0 meter from the duct or 

stack wall. To determine whether effluent 

stratification exists, a dual probe system 

should be used to determine the average 

effluent concentration while measurements 

at each traverse point are being made. One 

probe, located at the stack or duct centroid, 

is used as a stationary reference point to 

indicate change in the effluent concentration 

over time. The second probe is used for 

sampling at the traverse points specified in 

Method 1 (40 CFR part 60 appendix A). The 

monitoring system samples sequentially at 

the reference and traverse points throughout 

the testing period for five minutes at each 

point. 

Calibration Drift Test Procedure. Same as 

section 8.3 in PS 2. 


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Note: The CE and RT tests must be 

conducted during the CD test period. 

Calibration Error Test Procedure. Challenge 

each monitor (both low and high range CO 

and O2) with zero gas and EPA Protocol 1 

cylinder gases at three measurement points 

within the ranges specified in Table 4B–1 (in 

section 18.0). 

Operate each monitor in its normal 

sampling mode as nearly as possible. The 

calibration gas must be injected into the 

sample system as close to the sampling probe 

outlet as practical and should pass through 

all CEMS components used during normal 

sampling. Challenge the CEMS three nonconsecutive times at each measurement point 

and record the responses. The duration of 

each gas injection should be sufficient to 

ensure that the CEMS surfaces are 

conditioned. 

Response Time Test Procedure. Same as 

section 8.3 in PS 4A and must be carried out 

for both the CO and O2 monitors. 

Relative Accuracy Test Procedure. 

Sampling Strategy for Reference Method 

(RM) Tests, Number of RM Tests, and 

Correlation of RM and CEMS Data are the 

same as PS 2, sections 8.4.3, 8.4.4, and 8.4.5, 

respectively. 

Quality Control [Reserved] 

Calibration and Standardization [Reserved] 

Analytical Procedure 

Sample collection and analysis are 

concurrent for this Performance Specification 

(see section 8.0). Refer to the RM for specific 

analytical procedures. 

Calculation and Data Analysis 

Summarize the results on a data sheet as 

shown in Figure 4B–1 (in section 18.0). 

Calibration Error (CE) is the average the 

differences between the instrument response 

and the certified cylinder gas value for each 

gas. Calculate the CE results for the CO 

monitor according to: 

Where: 

d = mean difference between the CEMS 

response and the known reference 

concentration, and 

FS = span value. 

The CE for the O2 monitor is the average 

percent O2 difference between the O2 monitor 

and the certified cylinder gas value for each 

gas. 

Method Performance 

Calibration Drift Performance 

Specification. For O2, same as specified in PS 

3. For CO, the same as specified in PS 4A 

except that the CEMS calibration must not 

drift from the reference value of the 

calibration standard by more than 3 percent 

of the span value on either the high or low 

range. 

Calibration Error (CE) Performance 

Specification. The mean difference between 

the CEMS and reference values at all three 

test points (see Table 4B–1) must be no 

greater than 5 percent of span value for CO 

monitors and 0.5 percent for O2 monitors. 

Response Time Performance Specification. 

The response time for the CO or O2 monitor 

must not exceed 240 seconds. 

Relative Accuracy (RA) Performance 

Specification. For O2, same as specified in PS 

3. For CO, the same as specified in PS 4A. 

Pollution Prevention [Reserved] 

Waste Management [Reserved] 

Alternative Procedure 

Alternative RA Procedure. Under some 

operating conditions, it may not be possible 

to obtain meaningful results using the RA test 

procedure. This includes conditions where 

consistent, very low CO emission or low CO 

emissions interrupted periodically by short 

duration, high level spikes are observed. It 

may be appropriate in these circumstances to 

waive the RA test and substitute the 

following procedure. 

Conduct a complete CEMS status check 

following the manufacturer’s written 

instructions. The check should include 

operation of the light source, signal receiver, 

timing mechanism functions, data 

acquisition and data reduction functions, 

data recorders, mechanically operated 

functions, sample filters, sample line heaters, 

moisture traps, and other related functions of 

the CEMS, as applicable. All parts of the 

CEMS must be functioning properly before 

the RA requirement can be waived. The 

instrument must also successfully pass the 

CE and CD specifications. Substitution of the 

alternate procedure requires approval of the 

Regional Administrator. 

Reference 

40 CFR part 266, Appendix IX, section 2, 

‘‘Performance Specifications for Continuous 

Emission Monitoring Systems.’’ 

Tables, Diagrams, Flowcharts, and 

Validation Data 

TABLE 4B–1—CALIBRATION ERROR CONCENTRATION RANGE

Measurement point CO Low range 

(ppm) 

CO High range 

(ppm) 

O2

(%) 

1 ....................................................................................................................................... 0–40 0–600 0–2 

2 ....................................................................................................................................... 60–80 900–1,200 8–10 

3 ....................................................................................................................................... 140–160 2,100–2,400 14–16 

FIGURE 4B–1—CALIBRATION ERROR DATA SHEET

Run No. Calibration 

value 

Monitor 

response 

Difference 

Zero Mid High 

1-Zero.

2-Mid.

3-High.

4-Mid.

5-Zero.

6-High.

7-Zero.

8-Mid.

9-High.

Mean Difference = 

Calibration Error = % % % 


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* * * * * 

Performance Specification 6—Specifications 

and Test Procedures for Continuous 

Emission Rate Monitoring Systems in 

Stationary Sources 

* * * * * 

13.2 CERMS Relative Accuracy. Calculate 

the CERMS Relative Accuracy (RA) 

expressed as a percentage using Eq. 2–6 of 

section 12 of Performance Specification 2. 

The RA of the CERMS shall be no greater 

than 20.0 percent in terms of the units of the 

emission standard. If the average emissions 

for the test are less than 50 percent of the 

applicable emission standard, substitute the 

applicable emission standard value in the 

denominator of Eq. 2–6 in place of the 

average RM value; in this case, the RA of the 

CERMS shall be no greater than 10.0 percent 

consistent with section 13.2 of Performance 

Specification 2. 

* * * * * 

Performance Specification 12A— 

Specifications and Test Procedures for Total 

Vapor Phase Mercury Continuous Emission 

Monitoring Systems in Stationary Sources 

* * * * * 

8.4.2 Reference Methods (RM). Unless 

otherwise specified in an applicable subpart 

of the regulations, use Method 29, Method 

30A, or Method 30B in appendix A–8 to this 

part or ASTM D6784 (IBR, see § 60.17) as the 

RM for Hg concentration. For Method 29 and 

ASTM D6784 only, the filterable portion of 

the sample need not be included when 

making comparisons to the CEMS results. 

When Method 29, Method 30B, or ASTM 

D6784–16 is used, conduct the RM test runs 

with paired or duplicate sampling systems 

and use the average of the vapor phase Hg 

concentrations measured by the two trains. 

When Method 30A is used, paired sampling 

systems are not required. If the RM and 

CEMS measure on a different moisture basis, 

data derived with Method 4 in appendix A– 

3 to this part must also be obtained during 

the RA test. 

* * * * * 

8.4.4 Number and Length of RM Test 

Runs. Conduct a minimum of nine RM test 

runs. When Method 29, Method 30B, or 

ASTM D6784 is used, only test runs for 

which the paired RM trains meet the relative 

deviation criteria (RD) of this PS must be 

used in the RA calculations. In addition, for 

Method 29 and ASTM D6784, use a 

minimum sample time of 2 hours and for 

Methods 30A and 30B use a minimum 

sample time of 30 minutes. 

* * * * * 

8.4.5 Correlation of RM and CEMS Data. 

Correlate the CEMS and the RM test data as 

to the time and duration by first determining 

from the CEMS final output (the one used for 

reporting) the integrated average pollutant 

concentration for each RM test period. 

Consider system response time, if important, 

and confirm that the results are on a 

consistent moisture basis with the RM test. 

Then, compare each integrated CEMS value 

against the corresponding RM value. When 

Method 29, Method 30B, or ASTM D6784 is 

used, compare each CEMS value against the 

corresponding average of the paired RM 

values. 

* * * * * 

8.4.6.1 When Method 29, Method 30B, or 

ASTM D6784 is used, outliers are identified 

through the determination of relative 

deviation (RD) of the paired RM tests. Data 

that do not meet the RD criteria must be 

flagged as a data quality problem and may 

not be used in the calculation of RA. The 

primary reason for performing paired RM 

sampling is to ensure the quality of the RM 

data. The percent RD of paired data is the 

parameter used to quantify data quality. 

Determine RD for paired data points as 

follows: Where: Ca and Cb are the Hg 

concentration values determined from the 

paired samples. 

* * * * * 

13.3 Relative Accuracy (RA). The RA of 

the CEMS must be no greater than 20 percent 

of the mean value of the RM test data in 

terms of units of mg/scm. Alternatively, if the 

mean RM is less than 2.5 mg/scm, the results 

are acceptable if the absolute value of the 

difference between the mean RM and CEMS 

values added to the absolute value of the 

confidence coefficient from Equation 12A–7 

does not exceed 0.5 mg/scm. 

* * * * * 

17.5 ASTM D6784–16, ‘‘Standard Test 

Method for Elemental, Oxidized, ParticleBound and Total Mercury in Flue Gas 

Generated from Coal-Fired Stationary 

Sources (Ontario Hydro Method).’’ 

* * * * * 

FIGURE 12A–3—RELATIVE ACCURACY TEST DATA

Run 

No. Date Begin time End time RM value (μg/m3) 

CEMS value 

(μg/m3) 

Difference 

(μg/m3) 

Run used? 

(yes/no) RD 1

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

Average Values 

Arithmetic Mean Difference: 

Standard Deviation: 

Confidence Coefficient: 

T-Value: 

% Relative Accuracy: 

(RM)avg¥(CEMS)avg: 

1 Calculate the RD only if paired samples are taken using RM 30B, RM 29, or ASTM D6784. Express RD as a percentage or, for very low RM 

concentrations (≤1.0 μg/m3), as the absolute difference between Ca and Cb. 

* * * * * Performance Specification 16— 

Specifications and Test Procedures for 

Predictive Emission Monitoring Systems in 

Stationary Sources 

* * * * * 

1.1 Does this performance specification 

apply to me? If you, the source owner or 

operator, intend to use (with any necessary 

approvals) a predictive emission monitoring 

system (PEMS) to show compliance with 


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your emission limitation under 40 CFR parts 

60, 61, or 63, you must use the procedures 

in this performance specification (PS) to 

determine whether your PEMS is acceptable 

for use in demonstrating compliance with 

applicable requirements. Use these 

procedures to certify your PEMS after initial 

installation and periodically thereafter to 

ensure the PEMS is operating properly. If 

your PEMS contains a diluent (O2 or CO2) 

measuring component, the diluent 

component must be tested as well. These 

specifications apply to PEMS that are 

installed under 40 CFR parts 60, 61, and 63 

after the effective date of this performance 

specification. 

* * * * * 

3.11 Relative Accuracy Audit (RAA) 

means a quarterly audit of the PEMS against 

a portable analyzer meeting the requirements 

of ASTM D6522–00 or a RM for a specified 

number of runs. A RM may be used in place 

of the portable analyzer for the RAA. 

3.12 Relative Accuracy Test Audit 

(RATA) means a RA test that is performed at 

least once every four calendar quarters after 

the initial certification test. The RATA shall 

be conducted as described in section 8.2. 

* * * * * 

9.1 QA/QC Summary. Conduct the 

applicable ongoing tests listed below. 

ONGOING QUALITY ASSURANCE TESTS

Test 

PEMS 

regulatory 

purpose 

Acceptability Frequency 

Sensor Evaluation ........................... All ................... ........................................................ Daily. 

RAA ................................................. All ................... Same as for RA in Sec. 13.5 ........ Each quarter except quarter when RATA performed. 

RATA ............................................... All ................... Same as for RA in Sec. 13.1 ........ Yearly in quarter when RAA not performed. 

Bias Correction ............................... All ................... If davg ≤ |cc| .................................... Bias test passed (no correction factor needed). 

PEMS Training ................................ All ................... If Fcritical ≥F, r ≥0.8 ........................ Optional after initial and subsequent RATAs. 

Sensor Evaluation Alert Test (optional).All ................... See Section 6.1.8 .......................... After each PEMS training. 

* * * * * 

9.4 Yearly Relative Accuracy Test Audit. 

Perform a minimum 9-run RATA as specified 

by section 8.2 on a yearly basis in the quarter 

that the RAA is not performed. 

* * * * * 

12.3.2 F-test. Conduct an F-test for each 

of the three RA data sets collected at different 

test levels. Calculate the variances of the 

PEMS and the RM using Equation 16–6. 

Determine if the variance of the PEMS data 

is significantly different from that of the RM 

data at each level by calculating the F-value 

using Equation 16–7. 

Compare the calculated F-value with the 

critical value of F at the 95 percent 

confidence level with n–1 degrees of 

freedom. The critical value is obtained from 

Table 16–2 or a similar table for Fdistribution. If the calculated F-value is 

greater than the critical value at any level, 

your proposed PEMS is unacceptable. 

* * * * * 

13.1 PEMS Relative Accuracy. The RA, 

calculated in units of the emission standard, 

must not exceed 10 percent if the PEMS 

measurements are greater than 100 ppm or 

0.2 lbs/mm Btu. The RA must not exceed 20 

percent if the PEMS measurements are 

between 100 ppm (or 0.2 lb/mm Btu) and 10 

ppm (or 0.02 lb/mm Btu). For measurements 

below 10 ppm (or 0.02 lb/mm Btu), the 

absolute mean difference between the PEMS 

measurements and the RM measurements 

must not exceed 2 ppm (or 0.01 lb/mm Btu). 

For diluent only PEMS, an alternative 

criterion of ±1 percent absolute difference 

between the PEMS and RM may be used if 

less stringent. 

* * * * * 

13.5 Relative Accuracy Audits (RAA). 

The average of the three portable analyzer or 

RM determinations must not differ from the 

simultaneous PEMS average value by more 

than 10 percent of the analyzer or RM for 

concentrations greater than 100 ppm (or 0.2 

lb/mm Btu) or 20 percent for concentrations 

between 100 ppm (or 0.2 lb/mm Btu) and 20 

ppm (or 0.04 lb/mm Btu), or the test is failed. 

For measurements at 20 ppm (or 0.04 lb/mm 

Btu) or less, this difference must not exceed 

2 ppm (or 0.01 lb/mm Btu) for a pollutant 

PEMS. For diluent PEMS, the difference must 

not exceed 1 percent. 

* * * * * 

■ 19. Amend Appendix F to part 60 by: 

■ a. In Procedure 1, by revising sections 

4.1, 5.2.3, and 6.2; and 

■ b. In Procedure 5, by revising sections 

2.5, 4.0, adding section 4.4, and revising 

section 5.1.3. 

The revisions and addition read as 

follows: 

Appendix F to Part 60—Quality 

Assurance Procedures 

Procedure 1—Quality Assurance 

Requirements for Gas Continuous Emission 

Monitoring Systems Used for Compliance 

Determination 

* * * * * 

4.1 CD Requirement. As described in 40 

CFR 60.13(d), source owners and operators of 

CEMS must check, record, and quantify the 

CD at two concentration values at least once 

daily (approximately 24 hours) in accordance 

with the method prescribed by the 

manufacturer. When using reference gases, 

introduce the reference gas prior to any 

sample conditioning or filtration equipment 

and ensure that it passes through all filters, 

scrubbers, conditioners, and other monitor 

components used during normal sampling. 

The reference gas must pass through as much 

of the sampling probe as practical. The CEMS 

calibration must, as minimum, be adjusted 

whenever the daily zero (or low-level) CD or 

the daily high-level CD exceeds two times the 

limits of the applicable PS’s in appendix B 

of this regulation. 

* * * * * 

5.2.3 * * * 

(1) * * * 

(2) For the CGA, for pollutant monitors, the 

audit inaccuracy must be ±15 percent of the 

average audit value as calculated using 

Equation 1–1 or the difference between the 

average CEMS response and the average audit 

value must be less than one of the following: 

Analyzer span 

Alternative CGA 

criteria 

(ppm) 

≥50 ppm ........................................ ±5 

>20 ppm, but ≤50 ppm .................. ±3 

≤20 ppm ........................................ +2 

For diluent monitors, ±15 percent of the 

average audit value. 

(3) For the RAA, ±15 percent of the threerun average or ±7.5 percent of the applicable 

standard, whichever is greater. 

* * * * * 

6.2 RAA Accuracy Calculation. Use 

Equation 1–1 to calculate the accuracy for the 

RAA. The RAA must be calculated in the 

units of the applicable emission standard. 

* * * * * 

Procedure 5—Quality Assurance 

Requirements for Vapor Phase Mercury 

Continuous Emissions Monitoring Systems 

and Sorbent Trap Monitoring Systems Used 

for Compliance Determination at Stationary 

Sources 

* * * * * 

2.5 Calibration Drift (CD) means the 

absolute value of the difference between the 

CEMS output response and either the upscale 

elemental Hg reference gas or the zero-level 

elemental Hg reference gas, expressed as a 

percentage of the span value, when the entire 


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CEMS, including the sampling interface, is 

challenged after a stated period of operation 

during which no unscheduled maintenance, 

repair, or adjustment took place. 

* * * * * 

4.0 Calibration Drift (CD) Assessment and 

Weekly System Integrity Check 

* * * * * 

4.4 Weekly System Integrity Check. At 

least once every 7 calendar days, using the 

procedure described in section 8.3.3 of 

Performance Specification 12A in appendix 

B to this part, source owners and operators 

of Hg CEMS must use a single mid- or highlevel oxidized Hg (mercuric chloride, HgCl2) 

reference gas to assess transport and 

measurement of oxidized mercury. The 

absolute value of the difference between the 

Hg CEMS output response and the reference 

gas value, as a percentage of span, must not 

be greater than 10.0 percent. 

* * * * * 

5.1.3 Relative Accuracy Audit (RAA). As 

an alternative to the QGA, a RAA may be 

conducted in three of four calendar quarters, 

but in no more than three quarters in 

succession. To conduct a RAA, follow the 

RATA test procedures in section 8.5 of PS 

12A in appendix B to this part, except that 

only three test runs are required. Calculate 

the relative accuracy according to Equation 

1–1 of Procedure 1 of this appendix. 

* * * * * 

PART 63—NATIONAL EMISSION 

STANDARDS FOR HAZARDOUS AIR 

POLLUTANTS FOR SOURCE 

CATEGORIES 

■ 20. The authority citation for part 63 

continues to read as follows: 

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

■ 21. In § 63.14: 

■ a. Revise paragraph (a); 

■ b. Redesignate paragraphs (d) through 

(t) as paragraphs (e) through (u); 

■ c. Add new paragraph (d); 

■ d. Revise newly redesignated 

paragraph (i)(102); 

■ e. Redesignate newly redesignated 

paragraphs (i)(103) through (116) as 

paragraphs (i)(104) through (117); and 

■ f. Add new paragraph (i)(103). 

The revisions and addition read as 

follows: 

§ 63.14 Incorporation by reference. 

(a) The materials listed in this section 

are incorporated by reference into this 

part with the approval of the Director of 

the Federal Register under 5 U.S.C. 

552(a) and 1 CFR part 51. To enforce 

any edition other than that specified in 

this section, EPA must publish a 

document in the Federal Register and 

the material must be available to the 

public. All approved materials are 

available for inspection at the EPA and 

the National Archives and Records 

Administration (NARA). Contact EPA 

at: Air and Radiation Docket and 

Information Center (Air Docket) in the 

EPA Docket Center (EPA/DC) at Rm. 

3334, EPA West Bldg., 1301 

Constitution Ave. NW, Washington, DC. 

The EPA/DC Public Reading Room 

hours of operation are 8:30 a.m. to 4:30 

p.m., Monday through Friday, excluding 

legal holidays. The telephone number of 

the EPA/DC Public Reading Room is 

(202) 566–1744, and the telephone 

number for the Air Docket is (202) 566– 

1742. For information on the availability 

of this material at NARA, email 

fr.inspection@nara.gov or go to 

www.archives.gov/federal-register/cfr/ 

ibr-locations.html. The material may be 

obtained from the source(s) in the 

following paragraph(s) of this section. 

* * * * * 

(d) American Public Health 

Association, 1015 15th Street NW, 

Washington, DC 20005; phone: (844) 

232–3707; email: standardmethods@

subscritpionoffice.com; website: 

www.standardmethods.org. Standard 

Methods (Online) For the Examination 

of Water and Wastewater: 

(1) 5210B (Method 5210B); 

Biochemical Oxygen Demand (BOD), 

2019; IBR approved for § 63.457(c). 

(2) [Reserved] 

* * * * * 

(i) * * * 

(102) ASTM D6784–02 (Reapproved 

2008), Standard Test Method for 

Elemental, Oxidized, Particle-Bound 

and Total Mercury in Flue Gas 

Generated from Coal-Fired Stationary 

Sources (Ontario Hydro Method), 

Approved April 1, 2008; IBR approved 

for §§ 63.2465(d); 63.11646(a); 

63.11647(a) and (d); tables 1, 2, 5, 11, 

12t, and 13 to subpart DDDDD; tables 4 

and 5 to subpart JJJJJ; tables 4 and 6 to 

subpart KKKKK; table 4 to subpart JJJJJJ. 

(103) ASTM D6784–16, Standard Test 

Method for Elemental, Oxidized, 

Particle-Bound and Total Mercury in 

Flue Gas Generated from Coal-Fired 

Stationary Sources (Ontario Hydro 

Method), 2016; IBR approved for table 5 

to subpart UUUUU appendix A to 

subpart UUUUU. 

* * * * * 

Subpart S—National Emission 

Standards for Hazardous Air Pollutants 

from the Pulp and Paper Industry 

■ 22. In § 63.457, revise paragraph (c)(4) 

to read as follows: 

§ 63.457 Test methods and procedures. 

* * * * * 

(c) * * * 

(4) To determine soluble BOD5 in the 

effluent stream from an open biological 

treatment unit used to comply with 

§§ 63.446(e)(2) and 63.453(j), the owner 

or operator shall use Method 5210B 

(IBR, see § 63.14) with the following 

modifications: 

(i) Filter the sample through the filter 

paper, into an Erlenmeyer flask by 

applying a vacuum to the flask sidearm. 

Minimize the time for which vacuum is 

applied to prevent stripping of volatile 

organics from the sample. Replace filter 

paper as often as needed in order to 

maintain filter times of less than 

approximately 30 seconds per filter 

paper. No rinsing of sample container or 

filter bowl into the Erlenmeyer flask is 

allowed. 

(ii) Perform Method 5210B on the 

filtrate obtained in paragraph (c)(4) of 

this section. Dilution water shall be 

seeded with 1 milliliter of final effluent 

per liter of dilution water. Dilution 

ratios may require adjustment to reflect 

the lower oxygen demand of the filtered 

sample in comparison to the total BOD5. 

Three BOD bottles and different 

dilutions shall be used for each sample. 

* * * * * 

Subpart EEE—National Emission 

Standards for Hazardous Air Pollutants 

From Hazardous Waste Combustors 

■ 23. In Appendix to Subpart EEE of 

part 63 revise section 5, remove section 

5.3 and redesignate section 5.4 as new 

section 5.3. to read as follows: 

Appendix to Subpart EEE of Part 63— 

Quality Assurance Procedures for 

Continuous Emissions Monitors Used 

for Hazardous Waste Combustors 

* * * * * 

5. Performance Evaluation for CO, O2, and 

HC CEMS 

Carbon Monoxide (CO), Oxygen (O2), and 

Hydrocarbon (HC) CEMS. An Absolute 

Calibration Audit (ACA) must be conducted 

quarterly, and a Relative Accuracy Test Audit 

(RATA) (if applicable, see sections 5.1 and 

5.2) must be conducted yearly. When a 

performance test is also required under 

§ 63.1207 to document compliance with 

emission standards, the RATA must coincide 

with the performance test. The audits must 

be conducted as follows. 

5.1 Relative Accuracy Test Audit (RATA). 

This requirement applies to O2 and CO 

CEMS. The RATA must be conducted at least 

yearly. Conduct the RATA as described in 

the RA test procedure (or alternate 

procedures section) described in the 

applicable Performance Specifications. In 

addition, analyze the appropriate 

performance audit samples received from the 

EPA as described in the applicable sampling 

methods. 

5.2 Absolute Calibration Audit (ACA). 

The ACA must be conducted at least 

quarterly except in a quarter when a RATA 

(if applicable, see section 5.1) is conducted 

instead. Conduct an ACA as described in the 


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calibration error (CE) test procedure 

described in the applicable Performance 

Specifications. 

5.3 Excessive Audit Inaccuracy. If the RA 

from the RATA or the CE from the ACA 

exceeds the criteria in the applicable 

Performance Specifications, hazardous waste 

burning must cease immediately. Hazardous 

waste burning cannot resume until the owner 

or operator takes corrective measures and 

audit the CEMS with a RATA to document 

that the CEMS is operating within the 

specifications. 

* * * * * 

Subpart JJJJ—National Emission 

Standards for Hazardous Air 

Pollutants: Paper and Other Web 

Coating 

■ 24. In § 63.3360, revise paragraph 

(e)(1)(vi) introductory text to read as 

follows: 

§ 63.3360 What performance tests must I 

conduct? 

* * * * * 

(e) * * * 

(1) * * * 

(vi) Method 25 or 25A of appendix A– 

7 to 40 CFR part 60 must be used to 

determine total gaseous organic matter 

concentration. Use the same test method 

for both the inlet and outlet 

measurements which must be 

conducted simultaneously. You must 

submit notice of the intended test 

method to the Administrator for 

approval along with notification of the 

performance test required under 

§ 63.7(b). You must use Method 25A if 

any of the conditions described in 

paragraphs (e)(1)(vi)(A) through (D) of 

this section apply to the control device. 

* * * * * 

Subpart ZZZZ—National Emissions 

Standards for Hazardous Air Pollutants 

for Stationary Reciprocating Internal 

Combustion Engines 

■ 25. Revise Table 4 to subpart ZZZZ of 

part 63 to read as follows: 

Table 4 to Subpart ZZZZ of Part 63— 

Requirements for Performance Tests 

As stated in §§ 63.6610, 63.6611, 

63.6620, and 63.6640, you must comply 

with the following requirements for 

performance tests for stationary RICE: 

For each . . . Complying with the 

requirement to . . . You must . . . Using . . . According to the following requirements . . . 

2SLB, 4SLB, and CI 

stationary RICE.

Reduce CO emissions Select the sampling port location 

and the number/location of traverse points at the inlet and 

outlet of the control device; 

and.

...................................................... For CO, O2, and moisture measurement, 

ducts ≤6 inches in diameter may be sampled at a single point located at the duct 

centroid and ducts >6 and ≤12 inches in 

diameter 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–1, 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–4. 

Measure the O2 at the inlet and 

outlet of the control device; 

and.

Method 3 or 3A or 3B of 40 CFR 

part 60, appendix A–2, or 

ASTM D6522–00 (Reapproved 

2005) abc (heated probe not 

necessary).

Measurements to determine O2 must be 

made at the same time as the measurements for CO concentration. 

Measure the CO at the inlet and 

the outlet of the control device; 

and.

ASTM D6522–00 (Reapproved 

2005) abc (heated probe not 

necessary) or Method 10 of 40 

CFR part 60, appendix A–4.

The CO concentration must be at 15 percent O2, dry basis. 

Measure moisture content at the 

inlet and outlet of the control 

device as needed to determine 

CO and O2 concentrations on 

a dry basis.

Method 4 of 40 CFR part 60, appendix A–3, or Method 320 of 

40 CFR part 63, appendix A, 

or ASTM D 6348–03 b.

Measurements to determine moisture content must be made at the same time and 

location as the measurements for CO 

concentration. 

4SRB stationary RICE Reduce formaldehyde 

or THC emissions.

Select the sampling port location 

and the number/location of traverse points at the inlet and 

outlet of the control device; 

and.

...................................................... For formaldehyde, THC, O2, and moisture 

measurement, ducts ≤6 inches in diameter may be sampled at a single point located at the duct centroid and ducts >6 

and ≤12 inches in diameter 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. 

Measure O2 at the inlet and outlet of the control device; and.Method 3 or 3A or 3B of 40 CFR 

part 60, appendix A–2, or 

ASTM Method D6522–00 (Reapproved 2005) a b (heated 

probe not necessary).

Measurements to determine O2 concentration must be made at the same time as 

the measurements for formaldehyde or 

THC concentration. 


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For each . . . Complying with the 

requirement to . . . You must . . . Using . . . According to the following requirements . . . 

Measure moisture content at the 

inlet and outlet of the control 

device as needed to determine 

formaldehyde or THC and O2

concentrations on a dry basis; 

and.

Method 4 of 40 CFR part 60, appendix A–3, or Method 320 of 

40 CFR part 63, appendix A, 

or ASTM D 6348–03 b.

Measurements to determine moisture content must be made at the same time and 

location as the measurements for formaldehyde or THC concentration. 

If demonstrating compliance with 

the formaldehyde percent reduction requirement, measure 

formaldehyde at the inlet and 

the outlet of the control device.

Method 320 or 323 of 40 CFR 

part 63, appendix A; or ASTM 

D6348–03,b provided in ASTM 

D6348–03 Annex A5 (Analyte 

Spiking Technique), the percent R must be greater than or 

equal to 70 and less than or 

equal to 130.

Formaldehyde concentration must be at 15 

percent O2, dry basis. Results of this test 

consist of the average of the three 1-hour 

or longer runs. 

If demonstrating compliance with 

the THC percent reduction requirement, measure THC at 

the inlet and the outlet of the 

control device.

(1) Method 25A, reported as propane, of 40 CFR part 60, appendix A–7.THC concentration must be at 15 percent 

O2, dry basis. Results of this test consist 

of the average of the three 1-hour or 

longer runs. 

Stationary RICE ......... Limit the concentration of formaldehyde or CO in the 

stationary RICE exhaust.

Select the sampling port location 

and the number/location of traverse points at the exhaust of 

the stationary RICE; and.

...................................................... For formaldehyde, CO, O2, and moisture 

measurement, ducts ≤6 inches in diameter may be sampled at a single point located at the duct centroid and ducts >6 

and ≤12 inches in diameter 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. If using a control device, the sampling site must be located at 

the outlet of the control device. 

Determine the O2 concentration 

of the stationary RICE exhaust 

at the sampling port location; 

and.

Method 3 or 3A or 3B of 40 CFR 

part 60, appendix A–2, or 

ASTM Method D6522–00 (Reapproved 2005) a b (heated 

probe not necessary).

Measurements to determine O2 concentration must be made at the same time and 

location as the measurements for formaldehyde or CO concentration. 

Measure moisture content of the 

stationary RICE exhaust at the 

sampling port location as 

needed to determine formaldehyde or CO and O2 concentrations on a dry basis; and.

Method 4 of 40 CFR part 60, appendix A–3, or Method 320 of 

40 CFR part 63, appendix A, 

or ASTM D 6348–03 b.

Measurements to determine moisture content must be made at the same time and 

location as the measurements for formaldehyde or CO concentration. 

Measure formaldehyde at the exhaust of the stationary RICE; 

or.

Method 320 or 323 of 40 CFR 

part 63, appendix A; or ASTM 

D6348–03,b provided in ASTM 

D6348–03 Annex A5 (Analyte 

Spiking Technique), the percent R must be greater than or 

equal to 70 and less than or 

equal to 130.

Formaldehyde concentration must be at 15 

percent O2, dry basis. Results of this test 

consist of the average of the three 1-hour 

or longer runs. 

Measure CO at the exhaust of 

the stationary RICE.

Method 10 of 40 CFR part 60, 

appendix A–4, ASTM Method 

D6522–00 (2005),a b Method 

320 of 40 CFR part 63, appendix A, or ASTM D6348–03 b.

CO concentration must be at 15 percent O2, 

dry basis. Results of this test consist of 

the average of the three 1-hour or longer 

runs. 

aYou may also use Methods 3A and 10 as options to ASTM–D6522–00 (2005). 

bYou may obtain a copy of the standard from at least one of the following addresses: ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428– 

2959, or University Microfilms International, 300 North Zeeb Road, Ann Arbor, MI 48106. 

Subpart PPPPP—National Emission 

Standards for Hazardous Air Pollutants 

for Engine Test Cells/Stands 

■ 26. In § 63.9306, revise paragraph 

(d)(2)(iv) to read as follows: 

§ 63.9306 What are my continuous 

parameter monitoring system (CPMS) 

installation, operation, and maintenance 

requirements? 

* * * * * 

(d) * * * 

(2) * * * 

(iv) Using a pressure sensor with 

measurement sensitivity of 0.002 inch 

water, check gauge calibration quarterly 

and transducer calibration monthly. 

* * * * * 

■ 27. In § 63.9322, revise paragraph 

(a)(1) to read as follows: 

§ 63.9322 How do I determine the emission 

capture system efficiency? 

* * * * * 

(a) * * * 

(1) The capture system meets the 

criteria in Method 204 of appendix M to 

40 CFR part 51 for a permanent total 

enclosure (PE) and directs all the 

exhaust gases from the enclosure to an 

add-on control device. 

* * * * * 


jspears on DSK121TN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 80 / Tuesday, April 26, 2022 / Proposed Rules 24507 

Subpart UUUUU—National Emission 

Standards for Hazardous Air 

Pollutants: Coal- and Oil-Fired Electric 

Utility Steam Generating Units 

■ 28. Revise table 5 to subpart UUUUU 

of part 63 to read as follows: 

Table 5 to Subpart UUUUU of Part 63— 

Performance Testing Requirements 

As stated in § 63.10007, you must 

comply with the following requirements 

for performance testing for existing, new 

or reconstructed affected sources: 

Note: Regarding emissions data collected 

during periods of startup or shutdown, see 

§§ 63.10020(b) and (c) and 63.10021(h). 

To conduct a performance 

test for the following pollutant 

. . . 

Using . . . 

You must perform the following activities, 

as applicable to your input- or outputbased emission limit . . . Using . . .1

1. Filterable Particulate matter (PM).Emissions Testing ............... a. Select sampling ports location and the 

number of traverse points.

Method 1 at appendix A–1 to part 60 of this chapter. 

b. Determine velocity and volumetric flowrate of the stack gas.Method 2, 2A, 2C, 2F, 2G or 2H at appendix A–1 or A–2 

to part 60 of this chapter. 

c. Determine oxygen and carbon dioxide 

concentrations of the stack gas.

Method 3A or 3B at appendix A–2 to part 60 of this 

chapter, or ANSI/ASME PTC 19.10.2

d. Measure the moisture content of the 

stack gas.

Method 4 at appendix A–3 to part 60 of this chapter. 

e. Measure the filterable PM concentration Methods 5 and 5I at appendix A–3 to part 60 of this 

chapter. For positive pressure fabric filters, Method 5D 

at appendix A–3 to part 60 of this chapter for filterable 

PM emissions. Note that the Method 5 or 5I front half 

temperature shall be 160° ±14 °C (320° ±25 °F). 

f. Convert emissions concentration to lb/ 

MMBtu or lb/MWh emissions rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

OR OR 

PM CEMS ............................ a. Install, certify, operate, and maintain the 

PM CEMS.

Performance Specification 11 at appendix B to part 60 of 

this chapter and Procedure 2 at appendix F to part 60 

of this chapter. 

b. Install, certify, operate, and maintain the 

diluent gas, flow rate, and/or moisture 

monitoring systems.

Part 75 of this chapter and § 63.10010(a), (b), (c), and 

(d). 

c. Convert hourly emissions concentrations 

to 30 boiler operating day rolling average lb/MMBtu or lb/MWh emissions 

rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

2. Total or individual non-Hg 

HAP metals.

Emissions Testing ............... a. Select sampling ports location and the 

number of traverse points.

Method 1 at appendix A–1 to part 60 of this chapter. 

b. Determine velocity and volumetric flowrate of the stack gas.Method 2, 2A, 2C, 2F, 2G or 2H at appendix A–1 or A–2 

to part 60 of this chapter. 

c. Determine oxygen and carbon dioxide 

concentrations of the stack gas.

Method 3A or 3B at appendix A–2 to part 60 of this 

chapter, or ANSI/ASME PTC 19.10.2

d. Measure the moisture content of the 

stack gas.

Method 4 at appendix A–3 to part 60 of this chapter. 

e. Measure the HAP metals emissions 

concentrations and determine each individual HAP metals emissions concentration, as well as the total filterable HAP 

metals emissions concentration and total 

HAP metals emissions concentration.

Method 29 at appendix A–8 to part 60 of this chapter. 

For liquid oil-fired units, Hg is included in HAP metals 

and you may use Method 29, Method 30B at appendix 

A–8 to part 60 of this chapter or ASTM D6784; 2 for 

Method 29 or ASTM D 6784, you must report the front 

half and back half results separately. When using 

Method 29, report metals matrix spike and recovery 

levels. 

f. Convert emissions concentrations (individual HAP metals, total filterable HAP 

metals, and total HAP metals) to lb/ 

MMBtu or lb/MWh emissions rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

3. Hydrogen chloride (HCl) 

and hydrogen fluoride (HF).

Emissions Testing ............... a. Select sampling ports location and the 

number of traverse points.

Method 1 at appendix A–1 to part 60 of this chapter. 

b. Determine velocity and volumetric flowrate of the stack gas.Method 2, 2A, 2C, 2F, 2G or 2H at appendix A–1 or A–2 

to part 60 of this chapter. 

c. Determine oxygen and carbon dioxide 

concentrations of the stack gas.

Method 3A or 3B at appendix A–2 to part 60 of this 

chapter, or ANSI/ASME PTC 19.10.2

d. Measure the moisture content of the 

stack gas.

Method 4 at appendix A–3 to part 60 of this chapter. 

e. Measure the HCl and HF emissions 

concentrations.

Method 26 or Method 26A at appendix A–8 to part 60 of 

this chapter or Method 320 at appendix A to this part 

or ASTM D6348–03 2 with 

(1) the following conditions when using ASTM D6348–03: 

(A) The test plan preparation and implementation in the 

Annexes to ASTM D6348–03, sections A1 through A8 

are mandatory; 

(B) For ASTM D6348–03 Annex A5 (Analyte Spiking 

Technique), the percent (%) R must be determined for 

each target analyte (see Equation A5.5); 

(C) For the ASTM D6348–03 test data to be acceptable 

for a target analyte, %R must be 70% ≥R ≤130%; and 

(D) The %R value for each compound must be reported 

in the test report and all field measurements corrected 

with the calculated %R value for that compound using 

the following equation: 


jspears on DSK121TN23PROD with PROPOSALS1
24508 Federal Register / Vol. 87, No. 80 / Tuesday, April 26, 2022 / Proposed Rules 

To conduct a performance 

test for the following pollutant 

. . . 

(cont’d) 

Using . . . 

(cont’d) 

You must perform the following activities, 

as applicable to your input- or outputbased emission limit . . . 

(cont’d) 

Using . . . 1

(cont’d) 

(2) spiking levels nominally no greater than two times the 

level corresponding to the applicable emission limit. 

Method 26A must be used if there are entrained water 

droplets in the exhaust stream. 

f. Convert emissions concentration to lb/ 

MMBtu or lb/MWh emissions rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

OR OR 

HCl and/or HF CEMS .......... a. Install, certify, operate, and maintain the 

HCl or HF CEMS.

Appendix B to this subpart. 

b. Install, certify, operate, and maintain the 

diluent gas, flow rate, and/or moisture 

monitoring systems.

Part 75 of this chapter and § 63.10010(a), (b), (c), and 

(d). 

c. Convert hourly emissions concentrations 

to 30 boiler operating day rolling average lb/MMBtu or lb/MWh emissions 

rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

4. Mercury (Hg) ..................... Emissions Testing ............... a. Select sampling ports location and the 

number of traverse points.

Method 1 at appendix A–1 to part 60 of this chapter or 

Method 30B at Appendix A–8 for Method 30B point selection. 

b. Determine velocity and volumetric flowrate of the stack gas.Method 2, 2A, 2C, 2F, 2G or 2H at appendix A–1 or A–2 

to part 60 of this chapter. 

c. Determine oxygen and carbon dioxide 

concentrations of the stack gas.

Method 3A or 3B at appendix A–1 to part 60 of this 

chapter, or ANSI/ASME PTC 19.10–1981.2

d. Measure the moisture content of the 

stack gas.

Method 4 at appendix A–3 to part 60 of this chapter. 

e. Measure the Hg emission concentration Method 30B at appendix A–8 to part 60 of this chapter, 

ASTM D6784,2 or Method 29 at appendix A–8 to part 

60 of this chapter; for Method 29 or ASTM D 6784, 

you must report the front half and back half results 

separately. 

f. Convert emissions concentration to lb/ 

TBtu or lb/GWh emission rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

OR OR 

Hg CEMS ............................. a. Install, certify, operate, and maintain the 

CEMS.

Sections 3.2.1 and 5.1 of appendix A to this subpart. 

b. Install, certify, operate, and maintain the 

diluent gas, flow rate, and/or moisture 

monitoring systems.

Part 75 of this chapter and § 63.10010(a), (b), (c), and 

(d). 

c. Convert hourly emissions concentrations 

to 30 boiler operating day rolling average lb/TBtu or lb/GWh emissions rates.

Section 6 of appendix A to this subpart. 

OR OR 

Sorbent trap monitoring system.a. Install, certify, operate, and maintain the 

sorbent trap monitoring system.

Sections 3.2.2 and 5.2 of appendix A to this subpart. 

b. Install, operate, and maintain the diluent 

gas, flow rate, and/or moisture monitoring systems.

Part 75 of this chapter and § 63.10010(a), (b), (c), and 

(d). 

c. Convert emissions concentrations to 30 

boiler operating day rolling average lb/ 

TBtu or lb/GWh emissions rates.

Section 6 of appendix A to this subpart. 

OR OR 

LEE testing .......................... a. Select sampling ports location and the 

number of traverse points.

Single point located at the 10% centroidal area of the 

duct at a port location per Method 1 at appendix A–1 

to part 60 of this chapter or Method 30B at Appendix 

A–8 for Method 30B point selection. 

b. Determine velocity and volumetric flowrate of the stack gas.Method 2, 2A, 2C, 2F, 2G, or 2H at appendix A–1 or A–2 

to part 60 of this chapter or flow monitoring system 

certified per appendix A to this subpart. 

c. Determine oxygen and carbon dioxide 

concentrations of the stack gas.

Method 3A or 3B at appendix A–1 to part 60 of this 

chapter, or ANSI/ASME PTC 19.10–1981,2 or diluent 

gas monitoring systems certified according to part 75 

of this chapter. 

d. Measure the moisture content of the 

stack gas.

Method 4 at appendix A–3 to part 60 of this chapter, or 

moisture monitoring systems certified according to part 

75 of this chapter. 

e. Measure the Hg emission concentration Method 30B at appendix A–8 to part 60 of this chapter; 

perform a 30 operating day test, with a maximum of 10 

operating days per run (i.e., per pair of sorbent traps) 

or sorbent trap monitoring system or Hg CEMS certified per appendix A of this subpart. 

f. Convert emissions concentrations from 

the LEE test to lb/TBtu or lb/GWh emissions rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 


jspears on DSK121TN23PROD with PROPOSALS1EP26AP22.089</GPH>
Federal Register / Vol. 87, No. 80 / Tuesday, April 26, 2022 / Proposed Rules 24509 

To conduct a performance 

test for the following pollutant 

. . . 

(cont’d) 

Using . . . 

(cont’d) 

You must perform the following activities, 

as applicable to your input- or outputbased emission limit . . . 

(cont’d) 

Using . . . 1

(cont’d) 

g. Convert average lb/TBtu or lb/GWh Hg 

emission rate to lb/year, if you are attempting to meet the 29.0 lb/year threshold.

Potential maximum annual heat input in TBtu or potential 

maximum electricity generated in GWh. 

5. Sulfur dioxide (SO2) .......... SO2 CEMS .......................... a. Install, certify, operate, and maintain the 

CEMS.

Part 75 of this chapter and § 63.10010(a) and (f). 

b. Install, operate, and maintain the diluent 

gas, flow rate, and/or moisture monitoring systems.

Part 75 of this chapter and § 63.10010(a), (b), (c), and 

(d). 

c. Convert hourly emissions concentrations 

to 30 boiler operating day rolling average lb/MMBtu or lb/MWh emissions 

rates.

Method 19 F-factor methodology at appendix A–7 to part 

60 of this chapter or calculate using mass emissions 

rate and gross output data (see § 63.10007(e)). 

1See tables 1 and 2 to this subpart for required sample volumes and/or sampling run times. 

2 IBR, see § 63.14. 

* * * * * 

■ 29. Amend sections 4.1.1.5 and 

4.1.1.5.1 under ‘‘4. Certification and 

Recertification Requirements’’ in 

Appendix A to subpart UUUUU of part 

63 to read as follows: 

Appendix A to Subpart UUUUU—Hg 

Monitoring Provision 

* * * * * 

4.1.1.5 Relative Accuracy Test Audit 

(RATA). Perform the RATA of the Hg CEMS 

at normal load. Acceptable Hg reference 

methods for the RATA include ASTM D6784 

(IBR, see § 63.14) and Methods 29, 30A, and 

30B in appendix A–8 to part 60 of this 

chapter. When Method 29 or ASTM D6784 is 

used, paired sampling trains are required, 

and the filterable portion of the sample need 

not be included when making comparisons to 

the Hg CEMS results for purposes of a RATA. 

To validate a Method 29 or ASTM D6784 test 

run, calculate the relative deviation (RD) 

using Equation A–1 of this section, and 

assess the results as follows to validate the 

run. The RD must not exceed 10 percent, 

when the average Hg concentration is greater 

than 1.0 mg/dscm. If the RD specification is 

met, the results of the two samples shall be 

averaged arithmetically. 

Where: 

RD = Relative Deviation between the Hg 

concentrations of samples ‘‘a’’ and ‘‘b’’ 

(percent), 

Ca = Hg concentration of Hg sample ‘‘a’’ (mg/ 

dscm), and 

Cb = Hg concentration of Hg sample ‘‘b’’ (mg/ 

dscm). 

4.1.1.5.1 Special Considerations. A 

minimum of nine valid test runs must be 

performed, directly comparing the CEMS 

measurements to the reference method. More 

than nine test runs may be performed. If this 

option is chosen, the results from a 

maximum of three test runs may be rejected 

so long as the total number of test results 

used to determine the relative accuracy is 

greater than or equal to nine; however, all 

data must be reported including the rejected 

data. The minimum time per run is 21 

minutes if Method 30A is used. If Method 29, 

Method 30B, or ASTM D6784 (IBR, see 

§ 63.14) is used, the time per run must be 

long enough to collect a sufficient mass of Hg 

to analyze. Complete the RATA within 168 

unit operating hours, except when Method 29 

or ASTM D6784 is used, in which case; up 

to 336 operating hours may be taken to finish 

the test. 

* * * * * 

■ 30. Amend Appendix A to part 63 by: 

■ a. In Method 315 by redesignating 

section 6.2 as section 16.2, placing it in 

numerical order and revising the 

introductory paragraph. 

■ b. In Method 323, by revising sections 

10.1, and 10.3; in section 12.1 adding 

entry ‘‘b’’ in alphabetical order, revising 

the entry ‘‘Kc’’; and revising section 

12.6. 

The revisions and addition read as 

follows: 

Appendix A to Part 63—Test Methods 

* * * * * 

Method 315—Determination of Particulate 

and Methylene Chloride Extractable Matter 

(MCEM) From Selected Sources at Primary 

Aluminum Production Facilities 

* * * * * 

16.2 Critical orifices as calibration 

standards. Critical orifices may be used as 

calibration standards in place of the wet test 

meter specified in section 10.3 of this 

method, provided that they are selected, 

calibrated, and used as follows: 

* * * * * 

Method 323—Measurement of 

Formaldehyde Emissions From Natural GasFired Stationary Sources—Acetyl Acetone 

Derivatization Method 

* * * * * 

10.1 Spectrophotometer Calibration. 

Prepare a stock solution of 10 mg/mL 

formaldehyde. Prepare a series of calibration 

standards from the stock solution 

corresponding to 0.0, 0.5, 1.5, 3.5, 5.0, and 

7.5 mg/mL formaldehyde. Mix 2.0 ml of each 

calibration standard with 2.0 mL of acetyl 

acetone reagent in screw cap vials, 

thoroughly mix the solution, and place the 

vials in a water bath (or heating block) at 

60 °C for 10 minutes. Remove the vials and 

allow to cool to room temperature. Transfer 

each solution to a cuvette and measure the 

absorbance at 412 nm using the 

spectrophotometer. Develop a calibration 

curve (response vs. concentration) from the 

analytical results of these standards. The 

acceptance criteria for the spectrophotometer 

calibration is a correlation coefficient of 0.99 

or higher. If this criterion is not met, the 

calibration procedures should be repeated. 

* * * * * 

10.3 Calibration Checks. Calibration 

checks consisting of analyzing a mid-range 

standard separate prepared with each batch 

of samples. The calibration check standard 

must be prepared independent of the 

calibration stock solution. The result of the 

check standard must be within 10 percent of 

the theoretical value to be acceptable. If the 

acceptance criteria are not met, the standard 

must be reanalyzed. If still unacceptable, a 

new calibration curve must be prepared 

using freshly prepared standards. 

* * * * * 

12.1 Nomenclature. 

* * * * * 

b = the intercept of the calibration curve at 

zero concentration 

* * * * * 

Kc = spectrophotometer calibration factor, 

slope of the least square regression line, 

absorbance/(mg/mL) (Note: Most 

spreadsheets are capable of calculating a 

least squares line, including slope, 

intercept, and correlation coefficient). 

* * * * * 

12.6 Mass of Formaldehyde in Liquid 

Sample. 


jspears on DSK121TN23PROD with PROPOSALS1EP26AP22.090</GPH>
24510 Federal Register / Vol. 87, No. 80 / Tuesday, April 26, 2022 / Proposed Rules 

1A Board Order issued by the Board is a 

regulatory instrument which specifies air pollution 

control limits or requirements for a specific source 

or company. See 66 FR 53665, 53671 (October 23, 

2001) (Response 2I). 

2The Louisville Area was subsequently 

redesignated to attainment for the 1979 1-hour 

ozone NAAQS. See 66 FR 53665 (October 23, 2001). 

More recently, the Louisville Area was designated 

as Marginal nonattainment for the 2015 ozone 

NAAQS. See 83 FR 25776 (June 4, 2018). 

3EPA incorporated Regulation 6.42 into the 

Jefferson County portion of the Kentucky SIP on 

October 23, 2001. See 66 FR 53658. 

* * * * * 

[FR Doc. 2022–07891 Filed 4–25–22; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R04–OAR–2021–0188; FRL–9775–01– 

R4] 

Air Plan Approval; Kentucky; Source 

Specific Changes for Jefferson County 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: The Environmental Protection 

Agency (EPA) is proposing to approve 

changes to the Kentucky State 

Implementation Plan (SIP), submitted 

by the Commonwealth of Kentucky, 

through the Energy and Environment 

Cabinet (Cabinet), on March 4, 2020, 

and supplemented on January 28, 2022. 

The proposed changes were submitted 

on behalf of the Louisville Metro Air 

Pollution Control District (District), 

which has jurisdiction over Jefferson 

County, Kentucky, and make changes to 

a Reasonably Available Control 

Technology (RACT) determination for a 

specific major source of nitrogen oxides 

(NOX) and volatile organic compound 

(VOC) emissions. EPA is proposing to 

approve these changes as they are 

consistent with the Clean Air Act (CAA 

or Act). 

DATES: Comments must be received on 

or before May 26, 2022. 

ADDRESSES: Submit your comments, 

identified by Docket ID No. EPA–R04– 

OAR–2021–0188 at 

www.regulations.gov. Follow the online 

instructions for submitting comments. 

Once submitted, comments cannot be 

edited or removed from Regulations.gov. 

EPA may publish any comment received 

to its public docket. Do not submit 

electronically any information you 

consider to be Confidential Business 

Information (CBI) or other information 

whose disclosure is restricted by statute. 

Multimedia submissions (audio, video, 

etc.) must be accompanied by a written 

comment. The written comment is 

considered the official comment and 

should include discussion of all points 

you wish to make. EPA will generally 

not consider comments or comment 

contents located outside of the primary 

submission (i.e., on the web, cloud, or 

other file sharing system). For 

additional submission methods, the full 

EPA public comment policy, 

information about CBI or multimedia 

submissions, and general guidance on 

making effective comments, please visit 

www2.epa.gov/dockets/commentingepa-dockets. 

FOR FURTHER INFORMATION CONTACT: Joel 

Huey, Air Planning and Implementation 

Branch, Air and Radiation Division, 

U.S. Environmental Protection Agency, 

Region 4, 61 Forsyth Street SW, Atlanta, 

Georgia 30303–8960. Mr. Huey can be 

reached by telephone at (404) 562–9104 

or via electronic mail at huey.joel@

epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. EPA’s Proposed Action 

EPA is proposing to approve changes 

to the Kentucky SIP that were received 

by EPA on March 4, 2020 and 

supplemented on January 28, 2022. 

Approval of this submission would 

incorporate Board Order—Amendment 

2, issued by the Air Pollution Control 

Board of Jefferson County (Board) for 

American Synthetic Rubber Company 

(ASRC), into the SIP. This amended 

Board Order 1 would replace in the SIP 

the existing Board Order issued by the 

Board for ASRC. The amended Board 

Order and EPA’s rationale for proposing 

to approve it into the SIP are described 

in detail below. 

II. Background and EPA’s Analysis of 

the Proposed Revisions 

Three counties in the Louisville area 

(Jefferson County in Kentucky and Clark 

and Floyd Counties in Indiana) were 

designated as nonattainment for ozone 

in March 1978 (43 FR 8962). On 

November 6, 1991 (56 FR 56694), after 

the CAA Amendments of 1990 were 

enacted, Jefferson County and portions 

of Bullitt and Oldham Counties in 

Kentucky and the Indiana Counties of 

Clark and Floyd were designated as the 

Louisville Moderate ozone 

nonattainment area (Louisville Area) 

under section 107(d)(4)(A) as a result of 

monitored violations of the 1979 1-hour 

ozone national ambient air quality 

standards (NAAQS) during 1987–1989.2

Section 182(b)(2) of the CAA requires 

states to adopt RACT for all major 

stationary sources of VOC in Moderate 

and above ozone nonattainment areas. 

Section 182(f) of the CAA requires that 

the same provisions for major stationary 

sources of VOC shall also apply to major 

stationary sources of NOX. Therefore, 

pursuant to section 182(f), RACT is a 

requirement, with certain exceptions 

described therein, for major sources of 

NOX in ozone nonattainment areas 

where VOC RACT applies. 

To comply with the NOx RACT 

requirement, which was a result of the 

Moderate nonattainment area 

designation for the 1-hour ozone 

NAAQS, the District submitted Jefferson 

County Air Quality Regulation 6.42, 

Reasonably Available Control 

Technology Requirements for Major 

Volatile Organic Compound- and 

Nitrogen Oxides-Emitting Facilities, to 

EPA approval.3 Regulation 6.42 requires 

the establishment and implementation 

of RACT, including the determination 

and demonstration of compliance with 

RACT, for certain emission units located 

at a major stationary source of NOX or 

VOC emissions and requires that each 

determination of RACT approved by the 

District be submitted to EPA as a sourcespecific revision to the Kentucky SIP. 

RACT is defined at paragraph 1.66 of 

District Regulation 1.02 as meaning 

‘‘devices, systems, process 

modifications, or other apparatus or 

techniques, including pollution 

prevention approaches, that are 

reasonably available taking into account 

the necessity of imposing those controls 

in order to attain and maintain a 

national ambient air quality standard 

and the social, environmental, and 

economic impact of those controls.’’ 

As discussed in EPA’s June 22, 2001 

(66 FR 33505), proposal to redesignate 

the Louisville Area to attainment for the 

1979 1-hour ozone NAAQS, Regulation 

6.42 has been implemented in part by 

means of Board Orders adopted by the 

Air Pollution Control Board of Jefferson 

County. Such Board Orders contain 

NOX RACT and VOC RACT plans, 

which set forth RACT requirements for 

the source, including monitoring, 

recordkeeping, and reporting 

requirements, as attachments. 


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