Okla. Stat. tit. 30, § 30-3-102.1: Initiation of guardianship proceedings for minors at

least 17 years and 6 months of age.

A. Any person interested in the welfare of a minor, where the

minor is at least seventeen (17) years and six (6) months of age and

believed to be an incapacitated person or partially incapacitated

person, may initiate guardianship proceedings, file a petition

pursuant to Section 3-101 of Title 30 of the Oklahoma Statutes and

request that any guardianship order take effect immediately on the

minor's eighteenth birthday.

B. The petitioner may provide with the petition a copy of the

results of an evaluation of the minor by a physician, psychologist

or other appropriate professional evaluation that meets the

requirements of subsection C of Section 3-101 of Title 30 of the

Oklahoma Statutes. If the evaluation was conducted within sixty

(60) days prior to the filing of the petition, the petitioner may

ask in the petition that the court accept this report in lieu of

ordering any additional evaluation pursuant to Section 3-108 of

Title 30 of the Oklahoma Statues, and the court may grant the

request.