Inside body height of a school bus shall be 72 inches or more, measured metal to metal, at all points on the longitudinal centerline from the front vertical bow to the rear vertical bow or to the rear interior ceiling mounted air-conditioning unit. Inside body height of Type A school buses shall be 62 inches or more.
67 Pa. Code § 171.56
The provisions of this §171.56 amended under the Vehicle Code, 75 Pa.C.S. §§ 4103, 4551-4553 and 6103.