67 Pa. Code § 57.2
This chapter applies to every vehicle required to bear Pennsylvania registration plates except:
The provisions of this § 57.2 adopted November 30, 1979, effective December 1, 1979, 9 Pa.B. 3946; readopted June 10, 1988, effective June 11, 1988, 18 Pa.B. 2600. Immediately preceding text appears at serial page (90242).