SIP Approval: Kentucky (updates to definitions rule and certain incorporation by reference dates for the Louisville Metro Air Pollution Control District). 

SIP Approval: Tennessee (revisions to continuous opacity monitoring system requirements). 

DOE announced the availability of the preliminary list of potential national interest electric transmission corridors, the designation of which would focus public and policymaker attention on the areas of greatest transmission need and unlock valuable federal financing and permitting tools to advance transmission development.

EPA finalized multiple actions under §111 of the CAA addressing greenhouse gas (GHG) emissions from fossil fuel-fired electric generating units (EGUs), including the repeal of the Affordable Clean Energy Rule, emission guidelines for GHG emissions from existing fossil fuel-fired steam generating EGUs, and revisions to the new source performance standards for GHG emissions from new and reconstructed fossil fuel-fired stationary combustion turbine EGUs. 

EPA updated the regulatory framework governing the management and protection of environmental, fish and wildlife, other surface resources, and special areas in the National Petroleum Reserve in Alaska.

EPA finalized technology reviews conducted for NESHAPs for gasoline distribution facilities and the review of new source performance standards for bulk gasoline terminals.