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Skip Navigation LinksDNREC : Division of Waste & Hazardous Substances : Emergency Prevention and Response

Accidental Release Program

Delaware oil refinery fire

The State of Delaware’s Accidental Release Prevention Regulation contains requirements for owners or operators of stationary sources having regulated extremely hazardous substances onsite to develop and implement a risk management program (RMP) that anticipates and minimizes the chances of catastrophic events.

History: Delaware was the third state in the nation to develop a chemical accident prevention regulation with adoption of the Regulation for the Management of Extremely Hazardous Substances in September 1989. Delaware was the first state to regulate flammables and explosives in addition to toxics.

The U.S. Environmental Protection Agency Region III approved the Delaware Department of Natural Resources and Environmental Control’s (DNREC) request to implement and enforce its accidental release prevention program in place of similar federal requirements on August 7, 2001. The Delaware regulation adopts the Federal requirements found in regulation 40 CFR Part 68 with some adjustments and substitutions. Delaware’s regulation includes additional requirements for sources not regulated by the Federal program.

Delaware did not request Federal approval for these more stringent requirements, but rather uses State authority under 7 Del. C. Chapter 77 Extremely Hazardous Substances Risk Management Act to implement and enforce these requirements.

For more information, please call (302) 395-2500 or visit:



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