Trans 300.63(1)(1) The first step at the service door may not be more than 16 inches from the ground. Trans 300.63(2)(2) The riser of any step may not be more than 15 inches. If there are 2 or more risers, they shall be approximately equal in height. Trans 300.63(3)(3) The step may not protrude beyond the widest part of the body. Trans 300.63(4)(4) Each step shall be covered with or constructed of nonskid material. Trans 300.63(5)(5) All steps shall be enclosed to prevent the accumulation of ice or snow except the first step of a type A-II bus which may have an exposed step with a slip resistant surface. Trans 300.63(6)(6) Each bus shall be equipped with a stepwell light which activates automatically upon opening of the service door to illuminate the steps. This light is not required to be operational during daylight hours. However, it must be in a working condition at all times. Trans 300.63(7)(7) Each school bus shall be equipped with a grab handle at least 10 inches in length, located inside the service door entrance for providing assistance to enter or leave the bus. Trans 300.63 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (2), (6), (7), Register, February, 1995, No. 470, eff. 3-1-95; am. (1), (2) and (5), Register, December, 1997, No. 504, eff. 1-1-98. Trans 300.64(1)(1) A stop signal arm which meets FMVSS 131 and SAE J1133 is required on every school bus painted with the yellow and black color scheme. The stop signal arm may not be extended until the bus is completely stopped. Trans 300.64(2)(2) The stop signal arm shall be installed in such a manner that it cannot be activated unless the alternately flashing red lamps are in operation. Trans 300.64(3)(3) The following specifications shall govern installation of the stop signal arm: Trans 300.64(3)(a)(a) It shall be a metal, or material with strength at least equivalent to all-steel, as certified by the bus body manufacturer, octagon-shaped sign at least 18 inches wide and 18 inches long exclusive of the mounting bracket. All sheet metal parts shall be 16 gauge or heavier. Trans 300.64(3)(b)(b) It shall have the word “STOP” on both sides in white letters at least 6 inches high and 7/8 inch wide on a bright red background. The outer edge shall have a white border at least 1⁄2 inch wide. All other parts of the assembly shall be painted black. Trans 300.64(3)(c)(c) It shall be equipped with 2, 4–inch or larger, double faced alternating flashing red lamps to be mounted near the perimeter of the sign with a minimum of 12 inches spacing between lamp centers. These lamps shall be wired to the circuit of the flashing red warning lamps mounted on the front and rear of the bus. These lamps may be strobe lamps or light emitting diodes. In lieu of the 2 double faced alternating flashing red lamps, the stop signal arm may be equipped with red flashing, high visibility light–emitting diodes incorporated into the word “STOP,” in accordance with the requirements of sub. (3) (b). Trans 300.64(5)(5) The stop signal arm shall be mounted on the left side of bus as close to the driver’s window as practicable. Trans 300.64(6)(6) The requirements of this section for the operation of the stop signal arm does not apply to school buses which are operated only in areas where use of the flashing red warning lights is not permitted. Trans 300.64 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (1), (3) (c), (6), Register, February, 1995, No. 470, eff. 3-1-95; emerg. am. (3) (a) and (c), eff. 7-1-97; am. (1), (2) (3) (a), (c) and (6), Register, December, 1997, No. 504, eff. 1-1-98; CR 03-116: am. (2) and (3) (c) Register April 2004 No. 580, eff. 5-1-04. Trans 300.65Trans 300.65 Sunshield. Each school bus shall have an interior sunshield installed above the windshield. Each type A-I, B, C or D bus shall have one of a size not less than 6 by 16 inches. Trans 300.65 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. Register, December, No. 504, eff. 1-1-98. Trans 300.66(1)(a)(a) The suspension system shall comply with the requirements in 49 CFR 393.207. The bus shall be equipped with front and rear shock absorbers. Trans 300.66(1)(b)(b) The shock absorbers shall be maintained free of leaks and all mountings shall be in good working order. Trans 300.66(2)(2) A school bus may not be operated with any broken springleaf or worn, loose, mislocated shackles or “U” bolts. Trans 300.66 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; renum. (1) to (3) to be (1) (a), (b) and (2) and am. (1) (a), Register, February, 1995, No. 470, eff. 3-1-95; am. (2), Register, December, 1997, No. 504, eff. 1-1-98. Trans 300.67(1)(1) The front tires shall have tread depth of at least 4/32-inch and rear tires shall have tread depth of at least 2/32-inch around the entire periphery measured at 2 points no less than 15 inches apart in any major tread groove. Trans 300.67(2)(2) A school bus may not be operated with regrooved, recapped, or retreaded tires on the front wheels. Trans 300.67(3)(3) A school bus may not be operated with cuts or chunks missing exposing the cord, recaps peeled loose or off, or showing an indication of ply separation. Trans 300.67(4)(4) Tires of different size or ply rating may be used except that all tires on an axle must be the same size and type. Bias and radial tires may not be mixed. Trans 300.67(5)(5) All tires shall be maintained to meet the manufacturer’s GAWR and GVWR. Trans 300.67 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (4), Register, February, 1995, No. 470, eff. 3-1-95; am. (2) and (3), Register, December, 1997, No. 504, eff. 1-1-98. Trans 300.68(1)(1) A bus may not be operated with any cracked rims, loose lug bolts or nuts or elongated stud holes. Trans 300.68(2)(2) The wheel bearings may not have more than 1/4 inch free play when measured at the tire level. Trans 300.68(3)(3) The following measurements are the maximum amount of play permitted in the king pins or ball joints when measured at the outside of the tire: Trans 300.68(3)(a)(a) When the wheel diameter is 16 inches or less, not more than 1/4 inch play is permitted. Trans 300.68(3)(b)(b) When the wheel diameter is greater than 16 inches the play permitted is 3/8 inch. Trans 300.68 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (2), (3) (a) and (b), Register, December, 1997, No. 504, eff. 1-1-98. Trans 300.69(1)(b)(b) “AS 1” to “AS 11” have the same meaning as in section 6 of ANS Z26.1. Trans 300.69(1)(c)(c) “AS 12” means a safety plastic material that includes all of the following: Trans 300.69(1)(c)2.2. Complies with tests 19 and 20 of ANS Z26.1 with the exception of the test for resistance to undiluted denatured alcohol. Trans 300.69(1)(c)3.3. In new buses or in replacement glazing has affixed a manufacturer’s label specifying instructions and agents for cleaning the glazing that will minimize the loss of transparency. Trans 300.69(1)(d)(d) “AS 13” means a safety plastic material that includes all of the following: Trans 300.69(1)(d)2.2. Complies with tests 19 and 20 of ANS Z26.1 with the exception of the test for resistance to undiluted denatured alcohol. Trans 300.69(1)(d)3.3. In new buses or in replacement glazing has affixed a manufacturer’s label specifying instructions and agents for cleaning the glazing that will minimize the loss of transparency. Trans 300.69(2)(2) The glazing in windows to the right and left of the driver shall be identified by the designation AS 1 or AS 2. The rearmost windows shall be designated AS 1, AS 2, AS 4 or AS 5, except that the lower glazed portion of the emergency door may be designated AS 8. Any other side push-out or kick-out windows may be identified with glazing designated as AS 1, AS 2, AS 3, AS 4, AS 5, AS 12, or AS 13. Trans 300.69(3)(3) On type A–I, B, C or D buses, the window to the driver’s immediate left and the window immediately to the rear of the service door shall be of insulated glass or of a thermo electric design that performs at least as well as insulated glass. Exceptions are cutaway van based vehicles manufactured in 2 stages equipped with a driver’s door and a roll–up window. If a lift and lift door are located immediately to the rear of the service door, the window in the lift door is not required to meet this requirement. The window to the rear of the lift door may be glazing applicable to other windows. Trans 300.69(4)(4) Each full side window shall provide a vertical opening of at least 9 inches, obtained by lowering the top portion of the window. The driver’s window may be of a sliding forward and rearward construction. A type A-II bus having windows which do not open from the top shall have no more than a 5-inch wide opening. Trans 300.69(5)(5) All windows shall operate freely. The side window latches shall be capable of holding the window securely in place in all positions. Trans 300.69(7)(7) A distinctive audible signal automatically operated shall clearly indicate to the driver the unlatching of an emergency window when the ignition is in the “on” position. A cut-off may not be installed in the circuit. Trans 300.69 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (1) (a), (c) 3., (d) 3., (2), (3), Register, February, 1995, No. 470, eff. 3-1-95; am. (1) (c) (intro.), 1., 2., (d) (intro.), 1., 2., (3), (4) and (7), Register, December, 1997, No. 504, eff. 1-1-98; CR 03-116: am. (3) Register April 2004 No. 580, eff. 5-1-04. Trans 300.70(1)(1) The glass in the windshield shall be laminated safety glass identified by the designation AS 1. This mark shall be visible and legible. The glass shall be of such quality as to prevent distortion of view in any direction. Trans 300.70 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (2), Register, December, 1997, No. 504, eff. 1-1-98. Trans 300.71(1)(1) Each school bus shall be equipped with an operational windshield washer system that provides fluid for the windshield wipers to effectively clean the windshield. Trans 300.71 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83. Trans 300.72Trans 300.72 Windshield wipers. Every school bus shall be equipped with 2 complete and operational windshield wipers. The system shall have at least 2 speeds. Trans 300.72 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83. Trans 300.73Trans 300.73 Wiring. All circuits of the bus shall be protected by a circuit breaker, field effect transistors, or fuse of sufficient rating to handle the current load. Trans 300.75(1)(1) Every school bus used for transporting persons in wheelchairs shall have an enclosed door opening located on the right side of the vehicle which will permit the use of a ramp or lift. Trans 300.75(2)(2) The door of the special opening shall be equipped with a device to hold it open. Trans 300.75(4)(4) The opening shall be equipped with material which seals out dirt, water, and fumes. Trans 300.75(5)(5) There shall be a light which illuminates the platform and the area outside the opening. Trans 300.75(6)(6) A drip molding shall be installed to effectively divert water from the opening. Trans 300.75 HistoryHistory: Cr. Register, February, 1983, No. 326, eff. 3-1-83; am. (6), Register, February, 1995, No. 470, eff. 3-1-95. Trans 300.76(1)(1) Every school bus transporting persons in wheelchairs shall be equipped with either a power lift or ramp which utilizes the special service opening specified in s. Trans 300.75. Trans 300.76(2)(2) If a school bus uses a ramp it shall have a nonslip material on the surface or may have a metal nonslip surface construction. The ramp shall be in a secured position while the bus is in motion. The ramp shall be at least 30 inches wide on the surface. Trans 300.76(3)(3) A power lift may be of varying design and operation. A lift may be designed to cause only minor vehicle design change other than for the special service opening, or a different design lift may be built to raise or lower through the floor of the vehicle. Each of these designs shall have a minimum lifting capacity of 700 pounds. A label stating that the lift meets this requirement shall be either permanently affixed to the power lift in a visible location or the information may be permanently stamped in a visible location. Trans 300.76(4)(4) The power source and mechanism of the lift shall be enclosed. Trans 300.76(5)(5) The platform of the power lift shall be covered with nonslip material or it may be of nonslip construction. The surface shall be at least 30 inches wide. Trans 300.76(6)(6) Every platform of a power lift shall be designed and constructed to prevent any movement when it is in the stored position. This requirement may be met by either a mechanical locking device or by the internal design of the lift.
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