FACT SIll l l

Test Methods and Performance Specifications for Air Emission Sources

ACTION

•	On April 8, 2022, the U.S. Environmental Protection Agency proposed routine
corrections and updates to some of its emissions measurement methods that are included
in various stationary source regulations and used at stationary and industrial sources.

•	The proposed revisions consist primarily of corrections of typographical and technical
errors, updates to procedures, and the addition of alternative methods that the Agency has
deemed acceptable to use. The proposed revisions apply to industries that are already
subject to various testing provisions.

•	The proposed revisions improve the quality of data and give source testers the flexibility
to use newly approved alternative procedures.

•	Many of the proposed revisions were brought to EPA's attention by regulated sources
and end-users like environmental consultants and compliance professionals.

•	EPA takes this routine step every few years to improve consistency in measurement
methods and data quality.

HOW TO COMMENT

•	EPA will accept comments on the proposal for 60 days after publication in the Federal
Register.

•	Comments, identified by Docket ID No. EPA-HQ-OAR-2020-0556, may be submitted by
one of the following methods:

o Go to https://www.regulations.gov/ and follow the online instructions for submitting
comments.

o Send comments by email to a-and-r-docket@epa.gov. Attention Docket ID No. EPA-
HQ-OAR-2020-0556 in the subject line of the message.

•	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 MORE INFORMATION

•	Interested parties can download the proposed rule from EPA's Air Emissions
Measurement Center web site under Proposed Methods.

•	For further information about the rulemaking, contact Lula Melton at EPA's Office of Air
Quality Planning and Standards at melton.lula@epa.gov or (919) 541-2910.

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