Okla. Admin. Code § 35:18-1-2
The following words or terms, when used in this Chapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Burial" means a process by which an animal carcass is disposed of by placement within an excavation into the soil or upon the soil surface where it is then covered by soil material.
"Composting" means the natural biological degradation of plant and animal matter in a controlled, well-aerated system.
"Domestic animal" means any cattle, bison, horses, sheep, goats, asses, mules, swine, domesticated rabbits, chickens, turkeys, other domesticated fowl, and any animal or bird in captivity.
"Incineration" means the controlled and monitored combustion of animal carcasses for the purposes of volume reduction and pathogen control and the final product is reduced to ashes.
"Landfill" means a solid waste disposal site permitted or approved by the Oklahoma Department of Environmental Quality.
"NRCS" means Natural Resources Conservation Service, an agency in the United States Department of Agriculture.
"Owner" means any person who has possession of a domestic animal by ownership, rent, hire, loan, or otherwise. This definition includes, but is not limited to, an owner or caretaker of an animal and any person who owns or is in control of land on which an animal carcass is found.
"Rendering" means the process or business of recycling animal carcasses and animal by products.
Okla. Admin. Code § 35:18-1-2