EPA is finalizing the update of the Outer Continental Shelf (OCS) Air Regulations proposed in the Federal Register on September 4, 2008. Requirements applying to OCS sources located within 25 miles of states' seaward boundaries must be updated periodically to remain consistent with the requirements of the corresponding onshore area (COA), as mandated by section 328(a)(1) of the Clean Air Act ("CAA" or "the Act"). The portion of the OCS air regulations that is being updated pertains to the requirements for OCS sources for which the State of Florida has been designated COA. The effect of approving the OCS requirements for the State of Florida is to regulate emissions from OCS sources in accordance with the requirements onshore. The change to the existing requirements discussed below will be incorporated by reference into the Code of Federal Regulations (CFR) and is listed in the appendix to the OCS air regulations. This action is an annual update of the Florida's OCS Air Regulations. These rules include revisions to existing rules that already apply to OCS sources. No comments were received on the September 4, 2008, proposal.