Okla. Stat. tit. 47, § 12-217
B. Every spot lamp mounted upon a motor vehicle shall be located with the center of such lamps at a height of not less than thirty inches, nor more than seventy-two (72) inches above the level surface upon which the vehicle stands and every spot lamp shall be so directed when in use:
D. Any motor vehicles may be equipped with not to exceed two fog lamps or two auxiliary lamps mounted upon the front below the level of the center of headlamps.
Fog lamps shall not be used in substitution of headlamps, except under conditions of rain or fog rendering disadvantageous the use of headlamps.
Whenever fog lamps are used in substitution of headlamps, as permitted herein, two such fog lamps mounted on opposite sides of the front of the vehicle must be lighted.
Every fog lamp or auxiliary lamp used upon a motor vehicle shall be so adjusted and aimed that no part of the high intensity portion of the beam shall, at a distance of twenty-five (25) feet, rise above the horizontal plane passing through the center of the lamp. Every such fog lamp or auxiliary lamp, or driving lamps, shall meet the requirements and limitations set forth in this section.
Added by Laws 1961, HB 556, § 12-217, emerg. eff. July 28, 1961; Amended by Laws 1993, SB 43, c. 13, § 3, emerg. eff. March 24, 1993.