220.127.116.11 Silicone brake fluid. When specified (see 6.2), and if available as the
manufacturer's standard or optional brake fluid, brake fluid conforming to MIL-B-46176 shall be
provided in the hydraulic brake system. A decal or plate shall be placed near the master cylinder
stating "CAUTION: USE SILICONE BRAKE FLUID ONLY, MIL-B-46176."
18.104.22.168 Brake lights. At least one pair of brake lights shall override the four-way
emergency flasher or the two systems shall be independent of each other. Modifications to the
manufacturer's standard product to accommodate this requirement shall not compromise
conformance to any Federal Motor Carrier Safety Regulation referenced herein or to any Federal
Motor Vehicle Safety Standard. If additional lights are added to the vehicle, the lights shall be
selected from the chassis manufacturer's standard matching hardware.
3.2 General design.
3.2.1 Federal Motor Vehicle Safety Standards. The vehicle shall comply with all Federal
Motor Vehicle Safety Standards in effect on the date of manufacture.
3.2.2 Air pollution control. The vehicle shall comply with Environmental Protection
Agency Regulations governing Control of Air Pollution from New Motor Vehicles and New
Motor Vehicle Engines in effect on the date of manufacture. In addition, vehicles destined for
California shall comply with State of California regulations governing air pollution control in
effect on the date of manufacture.
3..2.3 Sound level. The interior sound level shall not exceed 84 db(A), when measured
in accordance with Federal Motor Carrier Safety Regulation 393.94. The vehicle exterior sound
level shall conform to EPA Noise Emission Standards for Transportation Equipment - Medium
and Heavy Trucks.
3.2.4 Curb weight. The curb weight shall include the weight of the chassis and cab, with all
attachments, accessories, equipment, body; and a full complement of fuel, lubricants, and
3.2.5 Gross vehicle weight. Gross vehicle weight (GVW) shall consist of curb weight,
operator (weight computed at 175 pounds), and a payload to provide a total GVW of not less
than 14,000 pounds.
3.2.6 Weight distribution. The distribution of the GVW for the purpose of establishing
suspension, axle and tire capacity shall be determined with the payload uniformly distributed
over the payload area. Rated capacities shall be measured at the ground.
3.2.7 Wheelbase. The wheelbase shall be not less than 178 inches, measured between
the center lines of the front and rear axles. When specified (see 6.2), wheelbase shall be
compatible with the body make and model specified.