The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Kansas State Implementation Plan (SIP) and the Clean Air Act (CAA) 112(l) program. Specifically, these revisions implement the revised National Ambient Air Quality Standards (NAAQS) for fine particulate matter; clarify and refine applicable criteria for sources subject to the Kansas minor New Source Review permitting program; update the construction permitting program fee structure and schedule; and make minor revisions and corrections. Approval of these revisions ensures consistency between the State and federally-approved rules and ensures Federal enforceability of the State's rules.