The following words or terms, when used in this subchapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Department" means the Oklahoma Department of Transportation.
"Mowing Guide" means the Oklahoma Department of Transportation Mowing Guide, dated July 1, 1993.
"Permittee" means a person, firm, or corporation who has applied for and received a permit from the Department for the express purpose of mowing the state highway rights-of-way.
Okla. Admin. Code § 730:35-17-3