Ala. Admin. Code r. 770-X-10-.17-4-1-.20

Current through Register Vol. 42, No. 12, September 30, 2024

Section 770-X-10-.17-4-1-.20 - Fuel Systems

(1) Application - The provisions of this section apply to the systems for containing and supplying fuel for the operation of motor vehicles or for the operation of auxiliary equipment installed on, or used in connection with, motor vehicles.

(2) Location - Each fuel system must be located on the motor vehicle so that:

(a) No part of the system extends beyond the widest part of the vehicle;

(b) No part of a fuel tank is forward of the front axle of a power unit;

(c) Fuel spilled vertically from a fuel tank while it is being filled will not contact any part of the exhaust or electrical systems of the vehicle, except the fuel level indicator assembly;

(d) Fill pipe openings are located outside the vehicle's passenger compartment and its cargo compartment;

(e) A fuel line does not extend between a towed vehicle and the vehicle that is towing it while the combination of vehicles is in motion;

(f) No part of the fuel system of a bus manufactured on or after January 1, 1973, is located within or above the passenger compartment.

(3) Fuel Tank Installation - Each fuel tank must be securely attached to the motor vehicle in a workmanlike manner.

(4) Gravity or Siphon Feed Prohibited - A fuel system must not supply fuel by gravity of siphon feed directly to the carburetor or injector.

(5) Selection Control Valve Location - If a fuel system includes a selection control valve which is operable by the driver to regulate the flow of fuel from two or more fuel tanks, the valve must be installed so that either:

(a) The driver may operate it while watching the roadway and without leaving his driving position; or

(b) The driver must stop the vehicle and leave his seat in order to operate the valve.

(6) Fuel Lines - A fuel line which is not completely enclosed in a protective housing must not extend more than two inches below the fuel tank or its sump. Diesel fuel crossover return and withdrawal lines which extend below the bottom of the tank or sump must be protected against damage or impact. Every fuel line must be:

(a) Long enough and flexible enough to accommodate normal movements of the parts to which it is attached without incurring damage.

(b) Secured against chafing, kinking, or other causes of mechanical damage.

(7) Excess Flow Valve - When pressure devices are used to force fuel from a fuel tank, a device which prevents the flow of fuel from the fuel tank if the fuel feed line is broken must be installed in the fuel system.

Ala. Admin. Code r. 770-X-10-.17-4-1-.20

Effective January 1978. Filed with LRS February 5, 2013. Filed for Codification in the Alabama Administrative Code by the Alabama Public Service Commission on February 5, 2013, pursuant to Code of Ala. 1975, § 41-22-7.

Author: Alabama Public Service Commission

Statutory Authority:Code of Ala. 1975, §§ 37-3-5, 37-3-7.