Okla. Admin. Code § 710:85-11-2
In addition to terms defined in 68 O.S. §3913, the following words and terms, when used in this Subchapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Commission" means the Oklahoma Tax Commission.
"Department" means the Oklahoma Department of Commerce.
Added at 27 Ok Reg 2357, eff 7-11-10