Okla. Stat. tit. 12A, § 12A-3-409: Acceptance of Draft; Certified Check

ACCEPTANCE OF DRAFT; CERTIFIED CHECK

(a) "Acceptance" means the drawee's signed agreement to pay a

draft as presented. It must be written on the draft and may consist

of the drawee's signature alone. Acceptance may be made at any time

and becomes effective when notification pursuant to instructions is

given or the accepted draft is delivered for the purpose of giving

rights on the acceptance to any person.

(b) A draft may be accepted although it has not been signed by

the drawer, is otherwise incomplete, is overdue, or has been

dishonored.

(c) If a draft is payable at a fixed period after sight and the

acceptor fails to date the acceptance, the holder may complete the

acceptance by supplying a date in good faith.

(d) "Certified check" means a check accepted by the bank on

which it is drawn. Acceptance may be made as stated in subsection

(a) of this section or by a writing on the check which indicates

that the check is certified. The drawee of a check has no

obligation to certify the check, and refusal to certify is not

dishonor of the check.