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State Regulations: Louisiana

State of Louisiana

The Louisiana Department of Natural Resources (DNR), Office of Conservation (OC), is tasked with regulating the exploration and production of oil, gas, and other hydrocarbons, as well as protecting public safety and the state's environment from oil field waste, including the regulation of underground injection and disposal practices. The Louisiana Department of Environmental Quality (DEQ) administers the major environmental protection laws.


Louisiana Department of Natural Resources
Office of Conservation
P.O. Box 94275
Baton Rouge, LA 70804-9275 (mailing)

617 North Third Street
Baton Rouge, LA 70802 (shipping)
(225) 342-5540 (phone)
(225) 342-3705 (fax)

Louisiana Department of Environmental Quality
602 North Fifth Street
Baton Rouge, LA 70802
(866) 896-5337 (phone/customer information)

Disposal Practices and Applicable Regulations

The Louisiana Department of Natural Resources (DNR) Office of Conservation (OC) rules are contained in Title 43 (Natural Resources), Part XIX (Office of Conservation) of the Louisiana Administrative Code (LAC). Title 33 (Environmental Regulatory Code) of the LAC provides the rules and regulations administered by the Louisiana Department of Environmental Quality (DEQ).

  • Effective December 20, 2000, the DNR OC published a notice relative to the complete Reorganization of Statewide Order No. 29-B, LAC 43:XIX.129, editor's note. The reorganization effort moved the oil field pit regulations into a new Chapter 3, the injection/disposal well (underground injection control) regulations into a new Chapter 4, and the commercial facility regulations into a new Chapter 5, all under Subpart 1, Statewide Order No. 29-B. In 2001, the DNR OC undertook a major overhaul of several sets of regulations governing oil and gas waste management. They are all contained in Title 43, Part XIX, Subpart 1 (Statewide Order No. 29-B) of the Louisiana Administrative Code.
    • Finalized Addition of New Regulations in Chapter 4. "Disposal of E&P Wastes by Slurry Fracture Injection" of the Statewide Order No. 29-B, LAC 43:XIX.433.
    • Finalized Amendment to Chapter 5. "Off-site Storage, Treatment and/or Disposal of Exploration and Production Waste Generated from Drilling and Production of Oil and Gas Wells" of Statewide Order No. 29-B, LAC 43:XIX. 5 01 et seq.

  • Drilling Waste Disposal Options. Generators must characterize exploration and production waste, LAC 43:XIX.503.A. All nonhazardous oil field waste must be either disposed of onsite or transported to an approved commercial facility or transfer station in accordance with the requirements of LAC 43:XIX, Chapter 5 or under the direction of the commissioner.
    • Onsite disposal through land treatment subject to listed criteria and parameters, burial or trenching subject to listed criteria, solidification subject to listed criteria, or subsurface injection subject to approval, LAC 43: XIX.313, 315.
    • Offsite disposal through transportation to a community well or an operators permitted Class II disposal well subject to LAC 43:XIX.401 et seq., or discharge to surface waters where authorized.
    • Note that the new rules governing disposal by slurry fracture injection under LAC 43:XIX.433 apply to all onsite and offsite Class II wells that inject exempt exploration and production waste at pressures exceeding the fracture pressure of the injection interval. The regulations provide for Area of Review (AOR) options, criteria for injection and confining zones based on geology, and well construction. Moreover, operators must comply with reporting, operational, logging, testing, and corrective action requirements.
    • Commercial exploration and production waste treatment and disposal options include Class II injection wells, Class II well slurry fracture injection, land treatment, phase separation, thermal desorption, cavern disposal, incineration, solidification (chemical fixation), stabilization (chemical fixation), and other new and innovative options on a case-by-case basis, LAC 43:XIX.547.
    • Salt cavern disposal operations are governed by LAC 43:XVII.3101 et seq.