Okla. Stat. tit. 40, § 40-2-609: Rule of decision

RULE OF DECISION.

A final decision of the Board of Review and the principles of

law declared in arriving at such decision, unless expressly or

impliedly overruled by the passage of a more recent statute, by a

later decision of the Board of Review, or by a court of competent

jurisdiction, shall be binding upon the Commission and Appeal

Tribunal referees in subsequent proceedings which involve the same

questions of law or fact. In no event shall a decision of the Board

of Review, or by a court of competent jurisdiction, decided prior to

a change in law by the Legislature supersede or be binding upon the

Commission, Appeal Tribunal referees, Board of Review, or any court

of competent jurisdiction in proceedings subsequent to the passage

of statutory changes.