March and April have been busy months for vehicle emission regulation in the U.S. On March 20 and March 29 respectively, the U.S. Environmental Protection Agency (U.S. EPA) issued a set of final emission rules setting...more
On March 9, 2022, the US Environmental Protection Agency (EPA) rescinded a rule promulgated by the Trump Administration and revived California’s Clean Air Act waiver, allowing the state to set its own greenhouse gas emissions...more
Yesterday President Trump announced on Twitter that the U.S. was revoking California’s waiver under the Clean Air Act (CAA) which allowed it to impose stricter tailpipe emission standards than the federal ones. California’s...more