Approval and Promulgation of Implementation Plans and Operating Permits Program; State of Iowa

EPA is taking direct final action to approve revisions to the Iowa State Implementation Plan (SIP) and Iowa Operating Permits Program submitted by the State on November 18, 2008. The purpose of these revisions is to update existing air quality rules; make corrections, clarifications and improvements; add information with regard to control of fugitive dust; clarify the opacity limit for incinerators; update Prevention of Significant Deterioration (PSD) permitting requirements; and add rules for temporary operation of small generators during periods of disaster. EPA is approving the SIP provisions pursuant to section 110 of the CAA. EPA is approving the state operating permits revisions pursuant to section 502 of the CAA and implementing regulations.