In addition to any other equipment required by this chapter, no converted electric vehicle may be registered in or operated on the highways of the Commonwealth without the following:
At such time as the federal government establishes minimum equipment and safety standards, including any related to synthetic vehicle sounds, for converted electric vehicles, to the extent that such standards are different from the standards established by this section, the federal standards shall apply to converted electric vehicles in the Commonwealth. If any federal standard conflicts with a standard set forth by this section, the stricter standard shall prevail.
Va. Code § 46.2-1001.1