The following words and terms, when used in this Title, shall have the following meaning, unless the context clearly indicates otherwise:
"Chief Investment Officer" means the individual who is designated by the Treasurer to be principally responsible for the investment of funds and disposition of such investments under the control of OST.
"Office of State Treasurer" or "OST" means the agency governed by the State Treasurer.
"State Treasurer" or "Treasurer" means the individual who is the duly elected and acting Treasurer of the State of Oklahoma which is a statewide elected official and member of the Executive Branch of state government.
Okla. Admin. Code § 735:15-1-2