75 Pa.C.S. § 4922: Height of vehicles.

(a) General rule.--No vehicle, including any load, shall exceed a height of 13 feet 6 inches. This provision shall not be construed to require public authorities to provide sufficient vertical clearance to permit the operation of such vehicles.

(b) Buses.--Any bus operated wholly within a municipality, where permitted by the municipality, or in more than one municipality, where approved by the Public Utility Commission, may be of a total height, including load, not to exceed 14 feet 6 inches.

(c) Exceptions.--The provisions of this subchapter governing the height of vehicles do not apply to fire apparatus or to vehicles used exclusively to repair overhead lights and wires.

(d) Penalty.--Any person convicted of operating a vehicle with a height greater than 13 feet 6 inches and traveling without a valid permit shall, upon conviction, pay a fine of $500.