Okla. Stat. tit. 18 § 381.46
The holder of a deposit account in an association shall have the right to withdraw all or any part of the deposit account, subject to the right of the association and authority of the State Banking Commissioner or the Director of the Office of Thrift Supervision, to impose limitations upon the right of withdrawal from a deposit account for a fixed or minimum term with respect to which deposit account the applicable fixed or minimum term has not expired. With respect to deposit accounts which consist solely of funds in which the entire beneficial interest is held by one or more individuals or by an organization which is operated primarily for religious, philanthropic, charitable, educational, political, or other similar purposes and which is not operated for profit, and with respect to deposits of public funds by an officer, employee or agent of the United States, any state, county, municipality, or political subdivision thereof, the District of Columbia, the Commonwealth of Puerto Rico, American Samoa, Guam, any territory or possession of the United States, or any political subdivision thereof, such deposit accounts may be subject to check or to transfer or withdrawal on negotiable order or authorization to the association, and deposit account holders may make withdrawals or transfers from such accounts upon nontransferable order or authorization. An association may offer money market deposit accounts, as defined by federal regulations, and may permit withdrawals or transfers from such accounts to the same extent permitted by federal regulations, but subject to all of the limitations contained therein.
Okla. Stat. tit. 18, § 381.46