Approval and Promulgation of State Implementation Plans; Alaska: Regional Haze Progress Report

The Environmental Protection Agency (EPA) is approving a revision to the Alaska regional haze State Implementation Plan (SIP), submitted by the State of Alaska on March 10, 2016. Alaska submitted its Regional Haze Progress Report ("progress report" or "report") and a negative declaration stating that further revision of the existing regional haze SIP is not needed at this time. Alaska submitted both the progress report and the negative declaration in the form of implementation plan revisions as required by federal regulations. The progress report addresses the federal Regional Haze Rule requirements under the Clean Air Act to submit a report describing progress in achieving reasonable progress goals established for regional haze and a determination of the adequacy of the state's existing plan addressing regional haze. We are also approving minor updates to the Enhanced Smoke Management Plan, Long-Term Strategy, and Commitment to Future 308 Plan Revision sections of the regional haze SIP, submitted concurrently with the progress report.