With slightly tightened restrictions under the California Advanced Clean Trucks (ACT) rule having gone into effect at the start of 2025 and the prospect of numerous states following the Golden State’s lead, the regulatory world has been awash in dueling communications on the subject.
On a microeconomic level, the ACT has led to the halting of some truck sales in Oregon. But a bigger battle is taking shape across multiple states.
Unlike its sister regulation, the Advanced Clean Fleets (ACF) rule,...