Okla. Stat. tit. 60, § 60-1601.4: Knowledge

A. Subject to subsection B of this section, a person has

knowledge 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 it.

B. An organization that conducts activities through employees

has notice or knowledge of a fact involving a trust only from the

time the information was received by an employee having

responsibility to act for the trust, or would have been brought to

the employee's attention if the organization had exercised

reasonable diligence. An organization exercises reasonable

diligence if it maintains reasonable routines for communicating

significant information to the employee having responsibility to act

for the trust and there is reasonable compliance with the routines.

Reasonable diligence does not require an employee of the

organization to communicate information unless the communication is

part of the individual's regular duties or the individual knows a

matter involving the trust would be materially affected by the

information.