, Inspection Items, Procedures and Requirements. "Dark tinting" is not permitted on the windshield or any window used for driving purposes.
Windshield: The windshield shall have a horizontal gradient band (tinted) starting slightly above the driver's line of vision, with approximately ninety percent (90%) light transmittance and gradually decreasing to a minimum of seventy percent (70%) light transmittance at the top of the windshield, or the entire windshield shall be tinted to meet the requirements of FMVSS No. 205.
Beneficial Options: See Section F #76 for white roof
GENERAL PERFORMANCE REQUIREMENTS: The method to determine a uniform guideline for air conditioning systems in school buses shall conform to the American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc., ASHRAE 41.4-1986. Air conditioning systems shall:
Be furnished to meet the requirements of this specification and shall be the mechanical vapor compression refrigeration type.
Have sufficient power for simultaneous cooling, circulating, and dehumidifying the air.
Be provided with refrigerant that must be nontoxic, nonflammable, and non- explosive.
Be manufactured to conform to the requirements of SAE J639
Be of the current year's production.
Details not specifically defined herein shall be in accordance with the manufacturer's standard commercial practice for products of this type.
Have stand-alone grounding system for evaporator and condenser fan systems.
Have all power and grounding come directly from the battery.
All air conditioning systems will conform to this specification.
All air conditioning controls shall be located within the drivers reach while seated and operating the vehicle. The controls shall be of the manufactures design with a minimum of three operating speeds, OFF is not considered an operating speed.
Installing Dealer: Installation of the air conditioning system(s) shall be by the bus body company or by an authorized manufacturer's air conditioning dealer who normally stocks, sells, installs, and services a unit of the type being furnished.
Protection of Components: Any skirt-mounted air-conditioning component or component mounted underneath the bus shall be provided with shielding to protect these components from mud or road debris. NOTE: NO INSTALLATION OF ANY AIR CONDITIONING UNITS OR SYSTEMS SHALL, UNDER ANY CIRCUMSTANCES, VOID THE CHASSIS MANUFACTURER'S ENGINE WARRANTY. Section E-5