Section 301.22. Heaters.  


Latest version.
  • (1)  In addition to the requirements under 49 CFR 393.77 , a heater shall maintain an inside temperature of not less than 50 ° fahrenheit throughout the HSV at average minimum January temperatures as established by the U.S. department of commerce, weather bureau, for the area in which the bus is to be operated.
    (2)  The heater hose shall be adequately supported to guard against excessive wear or abrasion and may not interfere with or restrict the driver. Heater hose or lines inside the driver or passenger compartment shall be shielded to prevent accidental contact by driver or passengers.