Establishments primarily engaged in furnishing trucking or transfer services without storage for freight generally weighing more than 100 pounds, in a single municipality, contiguous municipalities, or a municipality and its suburban areas. Establishments primarily engaged in furnishing local courier services for letters, parcels, and packages generally weighing less than 100 pounds are classified in Industry 4215; those engaged in collecting and disposing of refuse by processing or destruction of materials are classified in Industry 4953; those engaged in removing overburden from mines or quarries are classified in Division B, Mining; and construction contractors hauling dirt and rock as a part of their construction activity are classified in Division C, Construction.