Okla. Stat. tit. 74, § 74-2261: Issuance of bonds - Attorney General approval and

certificate.

Unless an action shall be filed in the Supreme Court for

validation of the bonds in the manner hereinafter provided, no bonds

shall be issued hereunder until a certified copy of the proceedings

authorizing the issuance thereof, together with any other

information which the Attorney General may require, shall be

submitted to the Attorney General. If the Attorney General finds

that such bonds have been authorized in accordance with law, the

Attorney General shall approve the bonds and shall execute a

certificate to that effect, which shall be filed in the office of

the State Auditor and Inspector. All bonds so approved by the

Attorney General, registered by the State Auditor and Inspector, and

issued in accordance with the approved proceedings shall be valid

and binding obligations of the Commission, and the bonds and all of

the provisions securing the bonds shall be incontestable for any

cause in any court in Oklahoma unless suit thereon shall be brought

in a court having jurisdiction within thirty (30) days from the date

of the approval.