Okla. Admin. Code § 785:15-1-2
The following words and terms, when used in this Chapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Assessments" mean the charges imposed by any weather modification program.
"Board" means the Oklahoma Water Resources Board or any employee or agent or staff member thereof.
"License" means a certification issued by the Board to qualified persons making application therefor authorizing such persons to engage in weather modification and control operations.
"Person" means any individual, firm, partnership, association, corporation, business or public trusts, federal agency, state agency, the State of or any political subdivision thereof, municipalities, and any other duly constituted legal entity.
"Weather modification" means changing or attempting to change by artificial methods, the composition, motions and resulting behavior of the atmosphere.
"Weather modification apparatus" means any apparatus used with the intention of producing artificial changes in the composition, motions and resulting behavior of the atmosphere.
"Weather modification operation" means the performance of weather modification activities by chemical, mechanical or physical means pursuant to a single contract entered into for the purpose of producing, or attempting to produce a certain modifying effect other than naturally occurring within one specified geographical area during the period of operation not exceeding one (1) year, or, if the performance of weather modification activities are to be undertaken individually or jointly by a person or persons to be benefited and not undertaken pursuant to a contract, "operation" means the performance of weather modification activities by chemical, mechanical or physical means entered into for the purpose of producing, or attempting to produce, a certain effect other than that naturally occurring within one specified geographical area during the period of operation not exceeding one (1) year. [82:1087.2(2)]
"Weather modification operations director" means the person who has the knowledge and experience necessary to design, manage, evaluate and have overall responsibility for a weather modification operation.
"Weather modification permit" means the specific written authorization to perform weather modification activities within a specified area of the State of Oklahoma under a license issued by the Board.
"Weather modification research and development" means theoretical analysis, exploration and experimentation and the extension of investigative findings and theories of a scientific or technical nature into a practical application for experimental production and testing of models, devices, equipment, materials, and processes. [82:1087.2(3)]
"Weather modification target area" means the surface area within which the effects of an operation are expected to be found.
Okla. Admin. Code § 785:15-1-2