Department of the Interior(DOI)
Cabinet department for public lands, national parks, wildlife, energy and mineral leasing, water, geological science, and trust responsibilities to Tribes and Native communities.
Function
Cabinet department
Parent
Top-level (no parent)
FY2026 Budget Authority
$89.86B
Official Data
USAspending.govEvidence & Review
Evidence Confidence
MediumVerification Status
AI-researched, unverifiedLast Reviewed
Jul 5, 2026
Retrieved On
Jul 5, 2026
Effectiveness Baseline
Performance.gov links DOI goals and learning agenda materials; GAO frequently covers tribal services, wildland fire, water infrastructure, and federal lands management.
Efficiency Opportunities
Shared permitting data, consolidated grants to Tribes and states where lawful, improved asset maintenance prioritization, and interoperable geospatial systems.
Effectiveness Opportunities
Improve park maintenance, water project delivery, tribal service reliability, energy-leasing oversight, and science products used by communities.