Office of Restoration and Damage Assessment

Natural Resource Damage Assessment and Restoration

In partnership with affected state, tribal and federal trustee agencies, the NRDA Restoration Program conducts damage assessment, the first step toward resource restoration, used to provide the basis for determining needs.


  • The purpose of the Damage Assessment and Restoration Tracking System (DARTS) is to efficiently manage and track information and documents on cases throughout the entire Natural Resource Damage Assessment and Restoration (NRDAR) process.

    NRDAR Case Map and Document Library

  • A brief overview of the natural resource damage assessment and restoration process. Photo by Steve Gifford

    NRDAR Primer

  • Contact information for the Department of the Interior’s Restoration Program.

    Contact Us

  • Public notices, news, and announcements about NRDAR cases.


  • View of Bon Secour National Wildlife Refuge at Navy Cove Marsh
    The April 2010 Deepwater Horizon (DWH) oil spill in the Gulf of Mexico resulted in the largest offshore oil spill in U.S. history. The Department of the Interior is playing a major role in many restoration efforts. Two of our largest endeavors are the Deepwater Horizon Natural Resource Damage Assessment (DWH NRDA) and RESTORE Act implementation.

    Gulf Spill Restoration

  • screenshot of NRDAR 101 video
    Here you can find NRDAR Success Stories, Posters, Story Maps and Videos.