Section 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. 1976 , June 17, P.L. 162, No. 81, § 1, effective 7/1/1977. Amended 2008, Nov. 26, P.L. 1658, No. 133, §9.1, effective in 60 days [ 1/26/2009].