Va. Code § 18.2-175
No person, not such an officer as is referred to in § 19.2-78, shall wear any such uniform as is designated pursuant to the provisions of such section or wear an insignia or markings containing the Seal of the Commonwealth or the insignia of any such officer's uniform, nor shall any person not such an officer, or not authorized by such officer, or not authorized by the military police of the armed forces or of the National Guard, or not authorized by the military police of other governmental agencies, use or cause to be used on the public roads or highways of this Commonwealth, any motor vehicle bearing markings with the word "police" shown thereon. However, the prohibition against wearing an insignia or markings containing the Seal of the Commonwealth shall not apply to any certified firefighter or to any certified or licensed emergency medical personnel. Any violation of this section shall be a Class 1 misdemeanor.
Va. Code § 18.2-175