Okla. Stat. tit. 59, § 1944
All licensed behavioral practitioners, except those employed by federal, state, or local governmental agencies, shall, prior to the performance of service, furnish the client with a copy of the Statement of Professional Disclosure as promulgated by rule of the State Board of Health. A current copy of the document, signed by the client shall be on file with the State Department of Health at all times.
Laws 1999, SB 380, c. 133, § 2, emerg. eff. April 28, 1999.