2060-AO58 201004 Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Air and Radiation AR 2000 Environmental Protection Agency EPA Methods for Measurement of Filterable PM10 and PM2.5 and Measurement of Condensable Particulate Matter Emissions From Stationary Sources This action adds new procedures to two methods required in State Implementation Plans to measure fine PM or PM 2.5 with condensable emissions. Method 201a is amended to add procedures and equipment specifications for use of 2.5 micron size cut cyclone, which may be used in conjunction with the current 10 micron size cut cyclone if measuring both PM10 or PM2.5 or may be used alone if only PM2.5 is to be measured. Method 202 is amended to add procedures and equipment specifications to be followed when the measurement of fine PM which includes condensable emissions is required. These amendments improve the accuracy and precision of current version of Method 202. Substantive, Nonsignificant Previously Published in The Unified Agenda Final Rule Stage No No 40 CFR 51 app M Clean Air Act, 42 USC 7401 et seq No NPRM 03/25/2009 74 FR 12969 NPRM Comment Period End 05/26/2009 Final Action 05/00/2010 SAN No. 5147; EPA publication information: NPRM - http://edocket.access.gpo.gov/2009/pdf/E9-6178.pdf; EPA Docket information: EPA-HQ-QAR-2008-0348. No No Local State No No No Candace Sorrell 2060 Air and Radiation AR 919 541-1064 919 541-0516 sorrell.candace@epa.gov E143-02, Research Triangle Park NC 27711 Conniesue Oldham 2060 Air and Radiation AR 919 541-7774 919 541-0516 oldham.conniesue@epa.gov D205-02, E143-02, Research Triangle Park NC 27711