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EPA/AR RIN: 2060-AG46 Publication ID: Spring 1997 
Title: Acid Rain Program: Continuous Emission Monitoring Rule Revisions for Technical Issues 
Abstract: On January 11, 1993, EPA promulgated the final core acid rain rules, including the CEM regulation at 40 CFR Part 75. Since the rule was promulgated, the 263 Phase I and 783 Phase II utility units have already complied with this regulation by installing and completing certification testing by the January 1, 1995 statutory deadline. During implementation of the January 11, 1993 rule and of the technical revisions published May 17, 1995, EPA and industry found a small number of additional issues requiring policy guidance and rule changes. These issues include: using monitoring equipment capable of reading both controlled and uncontrolled emissions (dual range monitors); clarification of span language; a variation of the existing Appendix D method for determining SO2 emissions; an alternative method of determining flow (Appendix I); and greater flexibility in scheduling quality assurance testing. ^PThese technical revisions will provide greater flexibility to the regulated community and will clarify parts of the rule. This action raises no major issues, but rather simplifies implementation by providing industry with more options and flexibility. This action is necessary because of the experience and additional information both EPA and industry has gained from 1993 to the present. Industry views this action as positive because it provides industry with more implementation flexibility. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: Undetermined 
CFR Citation: 40 CFR 75 (Revision)   
Legal Authority: 42 USC 7651 et seq   
Timetable:
Action Date FR Cite
NPRM  10/00/1997    
Final Action  10/00/1998    
Additional Information: SAN No. 3808.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal 
Included in the Regulatory Plan: No 
Agency Contact:
Jennifer Macedonia
Environmental Protection Agency
Air and Radiation
6204J,
Washington, DC 20460
Phone:202 233-9123
Email: chandra.monika@epamail.epa.gov