Okla. Stat. tit. 21, § 21-1230.2

A. As used in the Environmental Crimes Act:

1. "Waste" means at least twenty-eight (28) gallons or two

hundred twenty (220) pounds, whether liquid or solid, of discarded

or abandoned materials and by-products including but not limited to

trash, refuse, garbage, biomedical waste, sewage, ash, sludge,

deleterious substances, oil field wastes, commercial and industrial

waste and chemical waste; and

2. "Hazardous waste" means:

a. waste that is subject to regulation as a hazardous

waste under the federal Resource Conservation and

Recovery Act, Title 42 U.S.C., Section 6901 et seq.,

and regulations adopted pursuant thereto,

b. waste that is subject to regulation as a hazardous

waste under the Oklahoma Hazardous Waste Management

Act, or

c. waste that is ignitable, corrosive, reactive or toxic

as determined by testing for the characteristics of

ignitability, corrosivity, reactivity or toxicity as

provided in 40 Code of Federal Regulations, Sections

261.21 through 261.24.

B. The minimum quantity requirements in paragraph 1 of

subsection A of this section shall not apply to chemical wastes used

or intended for use in the manufacture of controlled substances in

violation of the Uniform Controlled Dangerous Substances Act and

shall not apply to hazardous wastes in circumstances involving

unlawful disposal or concealment of hazardous waste as prohibited in

Sections 1230.6 and 1230.7 of this title.

C. The term hazardous waste shall not include the handling,

hauling, storage and disposition of salt water, mineral brines,

waste oil and other deleterious substances produced from or obtained

or used in connection with the drilling, development, producing and

processing of oil and gas, including reclaiming of oil from tank

bottoms located on leases and tank farms located outside the

boundaries of a refinery.