67 Pa. Code § 175.101
(b) Cleaning. A vehicle specified under this subchapter shall be equipped with a wiper system, capable of cleaning rain, snow and other moisture from the windshield and constructed so as to be operated by a switch conveniently located for use by the driver while in normal operating position.
The provisions of this § 175.101 adopted June 5, 1981, effective June 6, 1981, 11 Pa.B. 1941; amended October 29, 1982, effective February 1, 1983, 12 Pa.B. 3862; corrected November 12, 1982, effective February 1, 1983, 12 Pa.B. 3862; readopted December 2, 1988, effective December 3, 1988, 18 Pa.B. 5362. Immediately preceding text appears at serial page (77529).