This seems to be the PA code on "vehicles driven on highways", and talks about doors, as well as mirrors....
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§ 175.77. Body. (a) Condition of body. All items on the body shall be in safe operating condition as described in § 175.80 (relating to inspection procedure).
(f) Doors. A vehicle specified under this subchapter shall be equipped with doors of a type used as original equipment. The doors shall open and close securely unless the vehicle has been manufactured or modified to the extent that there is no roof or side. Tailgates, except on vehicles where the tailgate gives access to the passenger compartment, may be replaced with wood planking, nets or other material that will prevent loss of load. Tailgates may be removed when optional equipment, for example a truck camper, is added.
But this section hasn't changed "as of may 11th"....
The provisions of this § 175.77 adopted October 29, 1982, effective February 1, 1983, 12 Pa.B. 3862; corrected November 12, 1982, effective February 1, 1983, 12 Pa.B. 3947; readopted December 2, 1988, effective December 3, 1988, 18 Pa.B. 5362; amended November 13, 1998, effective May 13, 1999, 28 Pa.B. 5670. Immediately preceding text appears at serial pages (221239) to (221240).
And under inspection precedure...
(4) Check the door operation, including the tailgate, and reject if one or more of the following apply:
(i) The doors, except a tailgate on a pick-up truck, are not on the vehicle if originally fitted by the manufacturer.
(ii) The doors, including the tailgate, do not open and close securely, unless the vehicle has been manufactured or modified to the extent that there is no roof or side.
So they have to be there, but don't have to work????
Read/Study it yourself, I give up!
alan