The U.S. government has proposed easing fuel efficiency rules for commercial trucks, targeting stricter Obama-era standards that applied to both vehicle engines and overall performance. Officials argue the previous regulations overstepped federal authority, now seeking to narrow the scope of what the government can mandate. The shift could impact emissions and fuel costs for trucking companies while sparking debate over environmental and economic trade-offs. Industry groups and environmental advocates are likely to weigh in on the proposed changes.
The Trump administration on Friday moved to relax fuel efficiency standards for medium- and heavy-duty commercial trucks. The Transportation Department took aim at Obama-era standards, arguing that they exceed the scope of the government’s authority. The Obama administration set standards for both the whole vehicle and its engine. The Trump administration now says that the government...
