Daimler Truck North America last month informed its dealers in Oregon that it would not sell any new internal combustion diesel engine trucks in that state, a decision that is still in place though Oregon officials say the truck maker’s decision is the result of a misunderstanding.
At the root of the dispute is the California Advanced Clean Trucks rule, which Oregon and several other states have decided to adopt. California sets most of the provisions, and a list of states that includes New...