Okla. Stat. tit. 74 § 3101
The chief executive officer of any state agency, board, commission, council or other governing body of any department, system or authority is required, as part of his duties, to brief any newly appointed member of such governing body within two (2) weeks from the date of the member's appointment regarding his duties and responsibilities and those of the body to which he has been appointed, providing the new member with a copy of the statute or Constitutional provision pertaining thereto, a copy of the last twelve (12) monthly operating budgets showing all disbursements and receipts of such department or agency, and a copy of all rules and regulations existing in said agency, and other pertinent information that will assure that the new appointee is advised of such duties and responsibilities. The briefing may be delegated in part to the executive director or other managing officer of any department, system or authority under supervision of the governing body, the responsibility for its accomplishment remaining that of the chief executive officer.
Okla. Stat. tit. 74, § 3101