National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Arkansas

The Environmental Protection Agency (EPA) is approving, through a "direct final" procedure, the straight delegation of authority and approval of the mechanism used for the implementation and enforcement of certain unchanged Federal section 112 rules to the Arkansas Department of Environmental Quality (ADEQ), pursuant to section 112(l) of the Clean Air Act (Act or CAA). A more detailed description of the procedures used to implement the delegation is set forth in a memorandum of agreement (MOA) between ADEQ and EPA, dated September 17, 2014, a copy of which may be found in the docket for this rulemaking, as discussed below. The delegation only encompasses sources subject to one or more Federal section 112 standards (Part 63 standards specifically) which are also subject to the requirements of the Title V operating permits program. The delegation of authority under this action does not include authorities contained in CAA section 112(r).