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EPA/AR RIN: 2060-AH23 Publication ID: Fall 2011 
Title: Quality Assurance Requirements for Continuous Opacity Monitoring Systems 
Abstract: This rulemaking adds a procedure 3 to appendix F of 40 CFR part 60. This action provides quality assurance specifications for continuous opacity monitor system (COMS) installed for compliance. States may also cite this procedure for sources with installed COMS subject to compliance limitations. Minimum quality control (QC) and quality assurance (QA) requirements are specified to assess the quality of COMS performance. Daily zero and span checks, quarterly performance audits, and annual zero alignment checks are required in order to assure the proper functioning of the COMS and the accuracy of the COMS data. 
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 60   
Legal Authority: 42 USC 7411   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  02/28/2001  66 FR 12780   
NPRM Comment Period End  03/28/2001    
Final Action  12/00/2011    
Additional Information: SAN No. 3958; EPA Docket information: EPA-HQ-OAR-2003-0115.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, State 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: www.epa.gov/ttn/emc/proposed/m-203.pdf  
RIN Data Printed in the FR: No 
Agency Contact:
Jason Dewees
Environmental Protection Agency
Air and Radiation
E143-02,
Research Triangle Park, NC 27711
Phone:919 541-9724
Fax:919 541-0516
Email: dewees.jason@epa.gov

Conniesue Oldham
Environmental Protection Agency
Air and Radiation
D205-02, E143-02,
Research Triangle Park, NC 27711
Phone:919 541-7774
Fax:919 541-0516
Email: oldham.conniesue@epa.gov