Okla. Stat. tit. 14A, § 3-302.1
The seller or lender shall disclose to the buyer or debtor the fact that such a fee will be charged and collected for dishonored checks, negotiable orders of withdrawal or share drafts issued by the buyer or debtor.
Laws 1984, SB 318, c. 51, § 3, emerg. eff. March 28, 1984.