4 Va. Admin. Code § 25-40-1330
Mobile equipment shall be equipped with emergency brakes separate and independent of the regular braking system when generally available for a particular class of equipment.
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.
Derived from VR480-05-1.2 § 9.4, eff. July 19, 1989.