17 GOP attorneys general sue EPA over California vehicle emission standards

• The attorneys general argue that doing so allows California to impose its stringent limits on all new vehicles and amounts to favoritism.

The big picture: The exemption was previously granted to California in 2013. Regan restored it this March after the Trump administration revoked it in 2019.

• Regan said in the announcement that restoring the exemption "reinstates an approach that for years has helped advance clean technologies and cut air pollution for people not just in California, but for the U.S. as a whole.”