2060-AQ51 201504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Air and Radiation AR 2000 Environmental Protection Agency EPA Performance Specification 4C--Specifications and Test Procedures for Low-level Carbon Monoxide Continuous Emission Monitoring Systems in Stationary Sources

Performance Specification 4C would have been used to evaluate the acceptability of very low-level carbon monoxide (CO) continuous emissions monitoring systems (CEMS). During the notice and comment process of several recent stationary source rulemakings, it was determined current promulgated performance specifications (4, 4A, or 4B) were sufficient to show compliance with the final emissions standards of those stationary source regulations. Without a current or near future regulatory need, EPA has decided to withdraw Performance Specification 4C.

]]> Substantive, Nonsignificant Previously Published in The Unified Agenda Completed Actions No No None 42 U.S.C. 7401 et seq Clean Air Act No Withdrawn 02/02/2015 No No None No No No No Lula Melton 2060 Office of Air and Radiation OAR 919 541-2910 919 541-4511 melton.lula@epa.gov 109 T.W. Alexander Drive, Mail Code E143-02, Research Triangle Park NC 27711