The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Kentucky Energy and Environment Cabinet (Cabinet), on November 17, 2016, on behalf of the Commonwealth of Kentucky (Commonwealth). The revision was submitted in response to the EPA's SIP call published on June 12, 2015, concerning excess emissions during startup, shutdown, and malfunction (SSM) events. The submittal requests the revision of provisions identified in the 2015 SIP call for the Kentucky SIP.