Okla. Stat. tit. 17, § 17-304: Exemptions

The provisions of the Oklahoma Petroleum Storage Tank

Consolidation Act shall not apply to:

1. Septic tank systems;

2. Pipeline facilities;

3. Surface impoundments, pits, ponds or lagoons;

4. Stormwater and wastewater collection systems;

5. Flow-through process tank systems;

6. Liquid trap or associated gathering lines directly related

to oil or gas production and gathering operations;

7. Hydraulic lift tank systems;

8. Hydrogen storage tank systems;

9. Storage tank systems with a capacity of less than one

hundred ten (110) gallons;

10. Fleet and commercial aboveground storage tanks with an

individual capacity of two thousand one hundred (2,100) gallons or

less;

11. Storage tank systems with a de minimus concentration of

regulated substances;

12. Storage tank systems that serve as emergency backup tanks,

provided that such backup tanks hold regulated substances for only a

short period of time and are expeditiously emptied after each use.

The provisions of this paragraph shall not prevent Corporation

Commission notification requirements and such other restrictions as

may be deemed necessary by the Commission to protect the

environment;

13. Farm or residential underground storage tanks with an

individual capacity of one thousand one hundred (1,100) gallons or

less used for noncommercial purposes;

14. Underground storage tanks used for storing heating oil for

consumptive use on the premises where stored;

15. Storage tank systems storing hazardous wastes regulated

under Subtitle C of the federal Solid Waste Disposal Act, 42 U.S.C.,

Section 6921 et seq., or substances regulated as hazardous wastes

under the Oklahoma Hazardous Waste Management Act; and

16. Fuel storage facilities and associated equipment used in

wholesale or bulk distribution activities that are supplied by a

pipeline and from which fuel may be removed at a rack.