Okla. Stat. tit. 58, § 58-3045: Effect on existing powers of attorney

Except as otherwise provided in this act, on the effective date

of this act:

1. This act applies to a power of attorney created before, on

or after the effective date of this act;

2. This act applies to a judicial proceeding concerning a power

of attorney commenced on or after the effective date of this act;

3. This act applies to a judicial proceeding concerning a power

of attorney commenced before the effective date of this act unless

the court finds that application of a provision of this act would

substantially interfere with the effective conduct of the judicial

proceeding or prejudice the rights of a party, in which case that

provision does not apply and the superseded law applies; and

4. A power of attorney created before the effective date of

this act is not affected by this act.