Okla. Stat. tit. 12A, § 1-202
(f) Notice, knowledge, or a notice or notification received by an organization is effective for a particular transaction from the time when it is brought to the attention of the individual conducting that transaction, and, in any event, from the time it would have been brought to the attention of the individual if the organization had exercised due diligence. An organization exercises due diligence if it maintains reasonable routines for communicating significant information to the person conducting the transaction and there is reasonable compliance with the routines. Due diligence does not require an individual acting for the organization to communicate information unless such communication is part of the regular duties of the individual or unless the individual has reason to know of the transaction and that the transaction would be materially affected by the information.
Oklahoma Code Comment
The language of old section 1-202 was moved to section 1-307. Revised section 1-202 is essentially the same as old sections 1-201(25) - (27).
Laws 1961, SB 36, p. 73, § 1-202; Amended by Laws 2005, HB 2028, c. 139, § 9, eff. January 1, 2006 (superseded document available).