Okla. Stat. tit. 74, § 74-456.3: Per diem and mileage for legislators when Legislature

not in session.

Members of the Legislature who are officers of each house of the

Legislature shall receive the same per diem and mileage

reimbursement when the Legislature is not in session as that

provided by law for members of the Legislature for travel to and

from the State Capitol in the performance of their duties. Claims

for reimbursement under this section shall be approved by the

presiding officer of the appropriate house.