Okla. Admin. Code § 310:390-1-2
The following words or terms, when used in this chapter, shall have the following meaning unless the context clearly indicates otherwise:
"Approved" means approved in writing by the Department.
"Approved laboratory" means a laboratory approved by the Commissioner of Health or certified by the U.S. Environmental Protection Agency (EPA), or certified (accredited) by a third-party organization acceptable to the Commissioner of Health.
"Approved materials" means materials approved by the Department as being free of substances which may render the water injurious to health or which may adversely affect the flavor, color, odor, or microbiological quality of the water.
"Competent staff" means a person or persons with demonstrated experience or knowledge and training concerning the proper operation of water vending machines.
"Department" means the Oklahoma State Department of Health and its duly designated representatives.
"License" means a license issued under and pursuant to the provisions of these rules and regulations.
"Operator" means any person who operates water vending machines.
"Person" means any individual, public or private corporation, company, association, partnership, municipality, or any other legal entity or its legal representative, agent, or assigns.
"Potable water" means water which shall be from an approved source and shall not exceed any maximum contaminant level ("MCL") established by EPA under the Safe Drinking Water Act if adopted by the FDA or by the State Board of Health.
"Purified water" means water produced by distillation, deionization, reverse osmosis, or other method as defined in the 20th edition of the "United States Pharmacopeia."
"Vended water" means water dispensed by a water vending machine.
"Water vending machine" means any self-service device which, upon insertion of a coin, coins, token, or by other means, dispenses unit servings of water into a container without the necessity of refilling the machine between each operation.
Okla. Admin. Code § 310:390-1-2