Okla. Admin. Code § 710:65-13-132
Purchases by a county sheriff or county sheriff's office, as agent for the county, of food to be used in feeding prisoners are exempt from sales tax. Purchases made by a county sheriff personally or on behalf of a prisoner are subject to tax. [See: 68 O.S. §1356 (10)]
Amended at 25 Ok Reg 2070, eff 7-1-08