EPA Drops Supplemental GHG Truck Plan, Speeds Phase 3 Rule Timeline

EPA is dropping a plan to issue a supplemental greenhouse gas rule for medium- and heavy-duty trucks for model years 2027-2029 that it had contemplated in response to the passage of the Inflation Reduction Act (IRA) and instead will advance its Phase 3 GHG truck rule earlier than expected with a proposal in March and a final rule by the end of 2023. EPA changed course after determining that skipping the supplemental proposal and moving straight to writing the Phase...