Okla. Stat. tit. 36, § 36-6570.10: Prior authorization granted under former health plan —

Time frame to honor — Review.

A. On receipt of information documenting a prior authorization

from the enrollee or from the enrollee's health care provider, a

utilization review entity shall honor a prior authorization granted

to an enrollee from a previous utilization review entity for at

least the initial sixty (60) days of an enrollee's coverage under a

new health plan.

B. During the time period described in subsection A of this

section, a utilization review entity may perform its own review to

grant a prior authorization or make an adverse determination.

C. A utilization review entity shall continue to honor a prior

authorization it has granted to an enrollee when the enrollee

changes products under the same health insurance company for the

initial sixty (60) days of an enrollee's coverage under the new

product unless the service is no longer a covered service under the

new product.