EPA’s plan to stop regulating tailpipe emissions forces states to make a choice: compensate by clamping down harder on pollution within their borders, or risk violating the Clean Air Act. That’s the ...

A group of truck manufacturers have filed a lawsuit against California regulators, contending that the Golden State lacks the authority to enforce its heavy-duty vehicle emissions standards, which are ...

For decades, California has made environmental policy as if it were a sovereign nation, not an equal member of the Union. The federal government granted it this privilege on the premise that the ...

Congressional Republicans successfully eliminated California's unique authority to impose stricter vehicle emission standards than federal requirements. The legislation affects twelve states that ...

From President Trump’s first day back in office, he vowed to unravel California’s sway over the nation’s auto-emission standards by eliminating the state’s zero-emission mandates. He made good on that ...

The U.S. Department of Justice has filed a pair of complaints seeking to stop California from enforcing emissions standards for heavy-duty trucks. The DOJ filed complaints in two federal courts on ...

Manufacturer flexibility is enhanced through CARB's amendments to clean truck standards, allowing better management of emissions reductions and adaptation to varying ZEV sales across states. The ...

The Federal Trade Commission (FTC) has declared that an emissions agreement between California and four major truck makers is “unenforceable” — paving the way for noncompliance with the Golden State’s ...

ALL RIGHT. THANKS, CHRISTINE, FOR THAT WARNING THERE. A STATE LAWMAKER WANTS TO END EMISSIONS TESTING FOR DRIVERS IN PENNSYLVANIA. REPUBLICAN STATE SENATOR WAYNE LANGERHOLC SAYS HE WANTS TO INTRODUCE ...