§ 171.74a. Crossing control arm.
School buses shall be equipped with a crossing control arm which shall be automatically activated whenever the bus is stopped with the red warning signals in use.
(1) The crossing control arm shall meet or exceed SAE Standard J1133.
(2) The crossing control arm shall be mounted on the right side of the front bumper and may not open more than 90°.
(3) The crossing control arm shall extend a minimum of 60 inches from the front bumper when in the extended position.
(4) The crossing control arm shall extend simultaneously with the stop arm by means of the stop arm controls.
(5) The crossing control arm shall incorporate system connectors (electrical, vacuum or air) at the gate and shall be easily removable to allow for towing of the school bus.
(6) All components of the crossing control arm and all connections shall be waterproofed.
(7) If the crossing control arm is not constructed of noncorrosive or nonferrous material, it shall be zinc-coated or aluminum-coated or treated by equivalent process.
(8) There may not be sharp edges or projections on the crossing control arm that could cause hazard or injury to students.
(9) A multifunction school activity bus is not required to be in compliance with this section.
Authority The provisions of this § 171.74a issued under the Vehicle Code, 75 Pa.C.S. § § 1504, 1508, 1509, 4551—4553 and 6103.
Source The provisions of this § 171.74a adopted November 26, 2003, effective November 29, 2003, 33 Pa.B. 5817; amended May 20, 2005, effective May 21, 2005, 35 Pa.B. 3039. Immediately preceding text appears at serial page (301838).
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