Okla. Stat. tit. 11, § 11-49-117: Forfeiture of pensions and allowances

When any person who shall have received any benefits from the

System shall fail to report himself for examination for duty as

required herein, unless excused by the State Board, or shall disobey

the requirements of said State Board under this article, in respect

to said examination or duty, then the State Board shall order that

such pension or allowance as may have been granted to such person

shall immediately cease, and such person shall receive no further

pension or allowance or benefit under this article.