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remain open when fueling is in progress and remain in a totally closed position at all other times. Lettering shall be adjacent to the fuel filler opening indicating fuel type.

HANDRAILS

Handrails of not less than twenty inches (20") in length shall be installed on both sides of the step-well. The outside surface of this handle shall be stainless steel or polished aluminum. The handrails shall not be mounted with tapered screws to sheet metal (excluding barriers). The handrails shall assist passengers during entry or egress, and be designed to prevent entanglement, as evidenced by passage of the NHTSA String and Nut test.

HEATER / DEFROSTER

See ELECTRICAL EQUIPMENT AND WIRING

INSULATION AND SEALING OF JOINTS

Insulation, Thermal:

  • A.

    The ceilings and sidewalls shall be thermally insulated with a fire-resistant material approved by Underwriters Laboratories, Inc. to adequately reduce the noise level and to minimize vibrations. Buses shall have the equivalent of one- and-one half inches (1-1/2”) of fiberglass or other insulation in the ceilings and walls including the interior of hat-shaped bows. Any insulation used shall have a minimum R-factor value of 5.75. Overlapping of edge of exterior roof and side panels shall be sealed with non-hardening resilient material.

  • B.

    Noise Level:

The noise level shall neither exceed EPA "Noise Emission Standards" nor eighty- five (85) decibels at the ear of the occupant in the bus nearest to the noise source in the bus

LETTERING AND TRIM

  • A.

    The bus body shall have the words “SCHOOL BUS” in black with yellow reflective background if not of lighted design on the front roof cap and the rear roof cap.

  • B.

    The bus body shall have the words "SCHOOL BUS" in black on both sides. The lettering must have a reflective background or black reflective lettering.

  • C.

    The school bus letters shall be neat, clearly defined block style eight inches (8”) high with one-inch (1”) wide strokes. Lettering on Type A buses may be six inches (6”) high. The words “SCHOOL BUS” shall be as close to the center of the bus as possible.

  • D.

    School Name Lettering: School name lettering shall be displayed between the upper two (2) rub rails in black letters on both sides of the bus near the belt line using decals or with black paint. Lettering shall be five (5”) or six (6) inches high with minimum five-eighths inch (5/8”) block strokes and be the same size on both

Section C-8

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