OK027.01 Approval and Promulgation of Implementation Plans; Oklahoma; Interstate Transport Requirements for the 2012 PM-2.5 National Ambient Air Quality Standards (NAAQS), Proposed rule, 4 pages.
OK027.01 Approval and Promulgation of Implementation Plans; Oklahoma; Interstate Transport Requirements for the 2012 PM-2.5 National Ambient Air Quality Standards (NAAQS), Proposed rule, 4 pages.
Source: EPA Regulations news 2