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EPA/OAR RIN: 2060-AT15 Publication ID: Fall 2017 
Title: Revisions to Procedure 2--Quality Assurance Requirements for Particulate Matter Continuous Emission Monitoring Systems at Stationary Sources 

Procedure 2 established the minimum requirements for evaluating the effectiveness of quality control (QC) and quality assurance (QA) procedures and the quality of data produced by particulate matter (PM) continuous emission monitoring system (CEMS). Procedure 2 applies to PM CEMS used for continuously determining compliance with emission standards or operating permit limits as specified in an applicable regulation or permit. Other QC procedures may apply to diluent (e.g., O2) monitors and other auxiliary monitoring equipment included with CEMS to facilitate PM measurement or determination of PM concentration in units specified in an applicable regulation. Procedure 2 requires performing periodic evaluations of PM CEMS performance and developing and implementing QA/QC programs to ensure that PM CEMS data quality is maintained. We are aware that facilities, especially those that have installed control devices, are having difficulty passing their annual QA/QC test because their emissions are lower than they were during the original testing. Procedure 2 currently contains a requirement that the annual QA/QC test results must fall within the same response range as was used to develop the initial correlation curve. The EPA revised Procedure 2, removing the requirement that the response ranges be the same at the low end, so that facilities that have lowered their emissions and have results lower than their initial correlation testing will no longer be penalized.

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 60    40 CFR part 60     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7401 et seq. Clean Air Act   
Legal Deadline:  None
Action Date FR Cite
NPRM  11/21/2016  81 FR 83189   
Direct Final Rule  11/21/2016  81 FR 83160   
Notice  02/15/2017  82 FR 10711   
Final Rule  08/14/2017  82 FR 37822   
Final Rule Effective  09/13/2017 
Additional Information: Docket #:EPA-HQ-OAR-2016-0382
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:
Kim Garnett
Environmental Protection Agency
Office of Air and Radiation
E143-02, 109 T.W. Alexander Drive,
Research Triangle Park, NC 27709
Phone:919 541-1158