Okla. Stat. tit. 69, § 69-1255: Screening required

Any junkyard or scrap metal processing facility lawfully in

existence on the effective date of this act which is within one

thousand (1,000) feet of the nearest edge of the right-of-way and

visible from the main traveled way of any highway on the interstate

or primary system shall be screened by the person, firm or

corporation operating said junkyard or scrap metal processing

facility in the manner and at locations required by the Commission.