Okla. Stat. tit. 12A, § 12A-1-202: Notice - Knowledge

Notice; Knowledge.

(a) Subject to subsection (f) of this section, a person has

"notice" of a fact if the person:

(1) has actual knowledge of it;

(2) has received a notice or notification of it; or

(3) from all the facts and circumstances known to the

person at the time in question, has reason to know

that it exists.

(b) “Knowledge" means actual knowledge. “Knows” has a

corresponding meaning.

(c) “Discover" or "learn" or a word or phrase of similar import

refers to knowledge rather than to reason to know.

(d) A person "notifies" or "gives" a notice or notification to

another person by taking such steps as may be reasonably required to

inform the other person in ordinary course whether or not the other

person actually comes to know of it.

(e) Subject to subsection (f) of this section, a person

"receives" a notice or notification when:

(1) it comes to the attention of the person; or

(2) it is duly delivered in a form reasonable under the

circumstances at the place of business through which

the contract was made or at another location held out

by that person as the place for receipt of such

communications.

(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.