Approval and Promulgation of Implementation Plans; Alaska

The Environmental Protection Agency (EPA) is proposing to approve and incorporate by reference revisions to the Alaska State Implementation Plan (SIP) submitted on July 1, 2014 and October 24, 2014. These revisions primarily update the adoption by reference of Federal regulations and definitions into the Alaska SIP. The revisions also clarify stationary source permitting rules governing owner- requested emission limits and revise the SIP to reflect the redesignation of the Eagle River area of Anchorage. Upon final action, the Alaska SIP will be updated to reflect recent Federal regulatory changes and actions.