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EPA/OAR RIN: 2060-AS95 Publication ID: Spring 2019 
Title: Revisions to Testing Regulations for Air Emission Sources 

This action corrects and updates source test methods, performance specifications, and testing regulations for air emission sources under 40 CFR parts 51, 60, and 63. The revisions include corrections to testing provisions that contain inaccuracies and typographical errors, updates to outdated test methods, and the addition of alternative testing procedures the agency has deemed acceptable to use. An example correction is in Method 204, where the current enclosure area ratio, which is inadvertently identified as being less than 10.05, would be corrected to be less than 0.05. The EPA promulgates correction rules for testing regulations every few years to keep rules up-to-date and to ensure that compliance testing and monitoring are done correctly.

Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Completed Actions 
Major: No  Unfunded Mandates: No 
EO 13771 Designation: Deregulatory 
CFR Citation: 40 CFR 51    40 CFR 60    40 CFR 63   
Legal Authority: 42 U.S.C. 7401 et seq., Clean Air Act   
Legal Deadline:  None
Action Date FR Cite
NPRM  01/26/2018  83 FR 3636   
Final Rule  11/14/2018  83 FR 56713   
Final Rule Effective  01/14/2019 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Lula Melton
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code E143-02,
Research Triangle Park, NC 27711
Phone:919 541-2910
Fax:919 541-4511