Owners of vehicles subject to this chapter shall have the fire extinguishers in their vehicles inspected at least once a year to insure that the fire extinguishers are fully charged, properly filled and operable. Upon approval, the fire extinguisher shall be tagged, signed and dated.
67 Pa. Code § 171.147
The provisions of this §171.147 issued under the Vehicle Code, 75 Pa.C.S. §§ 4103, 4551-4553 and 6103.