OSHA breaks down heavy equipment operating at jobsites into two types: motor vehicles and materials handling equipment. Motor vehicles are those pieces of equipment that can operate both at a jobsite and on the highway. Dump trucks, flatbeds, and pickups, are some examples of these vehicles. Transporting workers, equipment, and materials would be some of their functions.

When these vehicles are operating on the highway, Department of Transportation (DOT), state, and local rules apply. When they enter a jobsite, DOT and OSHA rules must be followed. Equipment safety requirements and inspections are covered by 29 CFR 1926.601. General vehicle operation requirements are found in 29 CFR 1926.20.