67 Pa. Code § 171.79
A windshield washer system shall be installed and in safe operating condition.
The provisions of this § 171.79 adopted August 19, 1983, effective August 20, 1983, 13 Pa.B. 2561; readopted December 4, 1987, effective December 5, 1987, 17 Pa.B. 5052. Immediately preceding text appears at serial page (100995).