Okla. Stat. tit. 59, § 15.37
From and after June 24, 1971, no ordinance, trust or other legal instrument shall provide for any audit to be performed, reported upon or certified to by any accountant other than a registrant holding a valid permit.
Laws 1971, HB 1299, c. 324, § 3, emerg. eff. June 24, 1971; Amended by Laws 1992, HB 2340, c. 272, § 32, eff. September 1, 1992; Renumbered from 59 O.S. § 15.33 by Laws 1992, HB 2340, c. 272, § 34, eff. September 1, 1992.