Okla. Stat. tit. 47, § 47-12-204.1: Lamps illuminating rear license plate

A. No more than two separate lamps with a white light shall be

so constructed and placed as to illuminate the rear license plate

and render it clearly legible from a distance of fifty (50) feet to

the rear.

B. Any separate lamp or lamps for illuminating the rear license

plate, shall be lighted whenever the clearance lamps and:

1. Headlamps;

2. Combination of headlamps and auxiliary driving lamps, as

defined in Section 12-217 of this title; or

3. Fog lamps, as defined in Section 12-217 of this title, are

lighted.

C. The operation of a vehicle upon which the license plate is

surrounded or framed, partially or in whole, by any additional lamp

or lamps or otherwise lighted by any additional lamp or lamps, shall

be a violation of this section. In addition, display and visibility

of the rear license plate shall be in compliance with paragraph 2 of

subsection A of Section 1113 of this title.