Air Plan Approval; Maine; Infrastructure Requirement for the 2010 Nitrogen Dioxide National Ambient Air Quality Standard

The Environmental Protection Agency (EPA) is proposing to approve a February 21, 2018, State Implementation Plan (SIP) revision submitted by the State of Maine. This revision addresses the interstate transport requirements of the Clean Air Act (CAA) with respect to the 2010 primary nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS). This action proposes to approve Maine's demonstration that the State is meeting its obligations regarding the interstate transport of NO2 emissions into other states. This action is being taken under the CAA.