Articles Posted in Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)

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For nearly three decades, the U.S. Department of the Interior’s (DOI) simplified “Type A” Natural Resource Damage Assessment (NRDA) regulations were available more in theory than in practice, constrained by dated models, narrow geographic applicability and a $100,000 cap that rarely matched the economics of modern environmental claims. DOI has now finalized revisions to the Type A natural resource damages assessment procedures under 43 C.F.R. Part 11 for hazardous substance releases under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Clean Water Act (CWA), with the final rule published in the Federal Register on July 13, 2026 and scheduled to become effective August 12, 2026.

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The U.S. Department of the Interior (DOI) anticipates proposing a new rule that would revise its “Type A” Natural Resource Damage Assessment (NRDA) regulations under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) in Fall 2023. The proposed rule would modernize DOI’s rarely used simplified Type A procedures for assessing damages for natural resource injuries tailored at sites involving minor releases of hazardous substances, with a smaller scale and scope of natural resource injury occurring in either coastal and marine areas or Great Lakes environments (the “Type A Rule”). (See 88 Fed. Reg. 3373; see 43 C.F.R. Pt. 11 Subpt. D.) The Type A Rule was last updated in 1997.

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