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EPA/OAR RIN: 2060-AS91 Publication ID: Spring 2021 
Title: Revisions to Method 202: Dry Impinger Method for Determining Condensable Particulate Emissions From Stationary Sources 
Abstract:

The New Source Review (NSR) permitting regulations require that the measurement and control of PM from new major stationary sources and major modifications include the condensable component for both PM2.5 and PM10 emissions. Stakeholders have expressed concern that source-specific condensable particulate matter test results obtained with Method 202 could include positive bias that translates into overestimations of emissions. Some of these stakeholder issues involve the quality of reagent chemicals used in the method, while other issues involve equipment preparation or contamination pre- and post-sampling. The EPA is revising sections of Method 202 including, but not limited to, the proof blank train preparation and recovery requirements in the method and use of the proof and field train blanks. The revisions would address consistency in the execution of Method 202, which has shown wide variation in its implementation, and allows many performance-based options and procedures.

 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 51   
Legal Authority: 42 U.S.C. 7401 et seq. Clean Air Act   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  09/08/2017  82 FR 42508   
Final Rule  08/00/2021 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Local, State 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Ned Shappley
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code E143-02,
Research Triangle Park, NC 27709
Phone:919 541-7903
Email: shappley.ned@epa.gov