41 C.F.R. § 302-9.302 How many POV's may I transport within CONUS?
Title 41 - Public Contracts and Property Management
You may transport any number of POV's within CONUS under this subpart, provided your agency determines such transportation is advantageous and cost effective to the Government.
Title 41: Public Contracts and Property Management
PART 302–9—ALLOWANCES FOR TRANSPORTATION AND EMERGENCY STORAGE OF A PRIVATELY OWNED VEHICLE
Subpart D—Transportation of a POV Within the Continental United States (CONUS)
§ 302-9.302 How many POV's may I transport within CONUS?

