Okla. Stat. tit. 70 § 8-103.2
Except as otherwise provided, a student who enrolls, pursuant to the Education Open Transfer Act or pursuant to Section 2 of this act, in a school district in which the student is not a resident shall not be eligible to participate in school-related extramural athletic competition governed by the Oklahoma Secondary School Activities Association for a period of one (1) year from the first day of attendance at the receiving school unless the transfer is from a school district which does not offer the grade the student is entitled to pursue. If the student is granted an emergency transfer pursuant to Section 8-104 of this title, was granted a transfer for any reason prior to January 1, 2000, or enrolls pursuant to the Education Open Transfer Act and qualifies for a hardship waiver pursuant to the rules of the Oklahoma Secondary School Activities Association, eligibility to participate in school-related extramural athletic competition shall be determined by the Oklahoma Secondary School Activities Association.
Okla. Stat. tit. 70, § 8-103.2