GHG Standards for Big Trucks

The Standards MD/HD vehicles are typically grouped into seven classes based on gross vehicle weight rating (GVWR), and ranging from 8,501 to 10,000 pounds (Class 2b) to more than 33,001 pounds (Class 8). However, for the purposes of standard-setting, the agencies divided the industry into three discrete regulatory categories: combination tractors, heavy-duty pickups and vans, […]