After nearly 40 years of service, R + L Carriers has grown from a one-truck operation to a fleet of more than 12,000 tractors and trailers. R + L Carriers, a family-owned motor freight carrier, offers hazardous material transportation, jet service, cargo claims, electronic data interchange, permitting and pre-assigned shipping numbers. Robert s Truck Parts, the company s parts and service division, offers 24-hour field service as well as wreckers. Over the years, R + L Carriers has expanded through acquisitions of such companies as Gator Freightways, Greenwood Motor Lines and Herder Truck Lines. R + L Carriers services more than 45 United States, as well as parts of Canada and Puerto Rico, and it has terminals and offices throughout the U.S., including its headquarters in Liberty, Mo.