OAR 735-108-0065
Mounting, Wiring and Aiming of Auxiliary Driving Lamps for Motor Vehicles

(1)

Transportation Safety adopts the mounting requirements for motor vehicle auxiliary driving lamps as follows:

(a)

If one lamp is installed, mount the lamp on the left front side of the motor vehicle;

(b)

If two lamps are installed, mount the lamps symmetrically around the front centerline of the motor vehicle;

(c)

Mount lamps not less than 16 inches (40.6 cm) nor more than 42 inches (106.7 cm) above the level ground;

(d)

Measure mounting height from ground level to the center of the lens of the lamp;

(e)

Do not mount the lamps so they interfere with required motor vehicle lighting; and

(f)

Do not mount the lamps higher than the motor vehicle headlight system.

(2)

Transportation Safety adopts the wiring requirements for motor vehicle auxiliary driving lamps as follows:

(a)

Auxiliary driving lamps shall be wired so they can only come on when the motor vehicle high beam headlights are on; and

(b)

A switch shall be installed so the auxiliary driving lamps can be turned off or on leaving the height beam of the headlights on; and

(c)

A steady burning indicator light shall be wired so it comes on when the front fog lamps are turned on and mounted in a location it is readily visible to the driver.

(3)

Transportation Safety adopts the aiming requirements for motor vehicle auxiliary driving lamps as follows:

(a)

Adjust lamps to a setting of 0-0 when using a mechanical aimer; or

(b)

When using a visual aiming screen, aim the center of the high intensity beam straight ahead of the vertical and horizontal axis at a distance of 25 feet (7.6 m) from the lens.

Source: Rule 735-108-0065 — Mounting, Wiring and Aiming of Auxiliary Driving Lamps for Motor Vehicles, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=735-108-0065.

Last Updated

Jun. 8, 2021

Rule 735-108-0065’s source at or​.us