"Commercial motor vehicle" means any self-propelled or towed vehicle used on the highways in commerce to transport passengers or property if such vehicle (i) has a gross vehicle weight rating or gross combination weight rating, or gross vehicle weight or gross combination weight, whichever is greater, of more than 10,000 pounds when operated interstate or more than 26,000 pounds when operated intrastate, (ii) is designed or used to transport more than 15 passengers, including the driver, regardless of weight, or (iii) is used to transport hazardous materials in a quantity requiring placards by regulations issued under authority of Article 7 (§ 10.1-1450 et seq.) of Chapter 14 of Title 10.1.
"Motor carrier" means a common carrier by motor vehicle, a contract carrier by motor vehicle, or a private carrier of property or passengers by motor vehicle. This term also encompasses any agent, officer, representative, or employee who is responsible for the hiring, supervision, training, assignment, or dispatching of drivers.
"Transport vehicle" means any vehicle owned or leased by a motor carrier used in the transportation of goods or persons.
"Safety inspection" means the detailed examination of a vehicle for compliance with safety regulations promulgated under this section and includes a determination of the qualifications of the driver and his hours of service.
Any person holding a valid commercial driver's license shall be exempt from the hours of service of drivers provisions as defined in regulations promulgated by the Federal Motor Carrier Safety Administration ( 49 C.F.R. Part 395 ) while operating a commercial motor vehicle during planting and harvest periods to transport:
Va. Code § 52-8.4