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DOI
Interior Department
The Department of the Interior protects and provides access to our Nation's natural and cultural heritage and honors our trust responsibilities to tribes and our commitments to island communities. The Department of the Interior was created by act of March 3, 1849 (43 U.S.C. 1451), which transferred to it the General Land Office, the Office of Indian Affairs, the Pension Office, and the Patent Office. It was reorganized by Reorganization Plan No. 3 of 1950, as amended (5 U.S.C. app.). The Department manages the Nation's public lands and minerals, national parks, national wildlife refuges, and western water resources and upholds Federal trust responsibilities to Indian tribes and Alaskan natives. It is also responsible for migratory wildlife conservation; historic preservation; endangered species conservation; surface-mined lands protection and restoration; mapping geological, hydrological, and biological science for the Nation; and for financial and technical assistance for the insular areas.
Sub-agencies
19
Recent Regulations
10
DOI
Recent Regulations
View all →RuleMar 2, 2026
Offshore Downhole Commingling Regulatory Updates
ProposedFeb 26, 2026
Endangered and Threatened Wildlife and Plants; Removal of Geocarpon Minimum From the List of Endangered and Threatened Plants
RuleFeb 26, 2026
Endangered and Threatened Wildlife and Plants; Removal of Northern and Southern Distinct Population Segments of the Lesser Prairie-Chicken From the List of Endangered and Threatened Wildlife in Compliance With Court Order
ProposedFeb 26, 2026
Endangered and Threatened Wildlife and Plants; Status Review for the Lesser Prairie-Chicken
RuleSep 9, 2025
Endangered and Threatened Wildlife and Plants; Similarity of Appearance Explanation for the Northern Distinct Population Segment of the Southern Subspecies of Scarlet Macaw
RuleSep 2, 2025
Revisions to Regulations Regarding Locating, Recording, and Maintaining Mining Claims or Sites-Failure To Comply
ProposedAug 25, 2025
Endangered and Threatened Wildlife and Plants; 12-Month Not-Warranted Finding for the Northern California-Southern Oregon Distinct Population Segment of Fisher
RuleAug 25, 2025
Migratory Bird Hunting; 2025-26 Seasons for Certain Migratory Game Birds
ProposedJun 17, 2025
Endangered and Threatened Wildlife and Plants; Endangered Species Status for Seven Species of Pangolin
ProposedJun 17, 2025
Endangered and Threatened Wildlife and Plants; Three Species Not Warranted for Listing as Endangered or Threatened Species
About
The Department of the Interior protects and provides access to our Nation's natural and cultural heritage and honors our trust responsibilities to tribes and our commitments to island communities. The Department of the Interior was created by act of March 3, 1849 (43 U.S.C. 1451), which transferred to it the General Land Office, the Office of Indian Affairs, the Pension Office, and the Patent Office. It was reorganized by Reorganization Plan No. 3 of 1950, as amended (5 U.S.C. app.). The Department manages the Nation's public lands and minerals, national parks, national wildlife refuges, and western water resources and upholds Federal trust responsibilities to Indian tribes and Alaskan natives. It is also responsible for migratory wildlife conservation; historic preservation; endangered species conservation; surface-mined lands protection and restoration; mapping geological, hydrological, and biological science for the Nation; and for financial and technical assistance for the insular areas.
Sub-agencies (19)
FWS — Fish and Wildlife Service
USGS — Geological Survey
DOI OHA — Hearings and Appeals Office, Interior Department
BIA — Indian Affairs Bureau
OITT — Indian Trust Transition Office
BLM — Land Management Bureau
MMS — Minerals Management Service
USBM — Mines Bureau
NBS — National Biological Service
NCCC — National Civilian Community Corps
NIGC — National Indian Gaming Commission
NPS — National Park Service
ONRR — Natural Resources Revenue Office
BOEM — Ocean Energy Management Bureau
BOEMRE — Ocean Energy Management, Regulation, and Enforcement Bureau
BOR — Reclamation Bureau
BSEE — Safety and Environmental Enforcement Bureau
OST — Special Trustee for American Indians Office
OSM — Surface Mining Reclamation and Enforcement Office