Department of the Interior Government Contracts — Contractor Guide
Researched by the BidStride Research Team
The Department of the Interior manages the nation's natural resources including public lands, national parks, wildlife refuges, and offshore energy. DOI bureaus include the Bureau of Land Management (BLM), National Park Service (NPS), Bureau of Indian Affairs (BIA), Bureau of Safety and Environmental Enforcement (BSEE), and U.S. Geological Survey (USGS). Interior contracts for environmental studies, IT systems, resource management, and construction on federal lands.
Department of the Interior awards approximately $4B+ in contracts annually with a 30% small business contracting goal. Typical contract types used include FFP, IDIQ, T&M, SBIR. All DOI solicitations above the simplified acquisition threshold are posted on SAM.gov.
$4B+
30%
of prime contract dollars
Key Procurement Offices
Department of the Interior contracting is distributed across these offices and commands. Target your business development toward the offices most aligned with your capabilities, and build relationships before solicitations are released.
- Bureau of Land Management (BLM)
- National Park Service (NPS)
- U.S. Geological Survey (USGS)
- Bureau of Indian Affairs (BIA)
- Interior Business Center (IBC)
Top NAICS Codes — DOI Contracting
These NAICS codes appear most frequently in Department of the Interior solicitations. Ensure your SAM.gov registration includes the codes matching your services.
Small Business Goals — DOI
Department of the Interior has a statutory small business prime contracting goal of 30% of annual contract dollars. This applies across all socioeconomic categories including 8(a), HUBZone, WOSB, and SDVOSB.
Ensure your certifications are current on SAM.gov to qualify for set-aside competitions. Contracting officers are required by law to first consider whether requirements can be met by small businesses before opening competition to all offerors.
Key Regulations — DOI Contracts
Contractors bidding on Department of the Interior contracts should understand these regulations and clauses. Review them before submitting any proposal.
- DIAR (Department of Interior Acquisition Regulation)
- FAR
- National Environmental Policy Act (NEPA)
- Indian Preference (Buy Indian Act)
Always verify applicable clauses in the actual solicitation. Clause applicability depends on contract type, value, and specific program requirements.
Frequently Asked Questions — DOI Contracting
The Buy Indian Act gives preference to Indian-owned and Indian-controlled enterprises for contracts with the Bureau of Indian Affairs and other Interior bureaus working with tribes. Indian-owned businesses can access set-aside opportunities not available to other small businesses. Certification as an Indian-owned enterprise is separate from standard SBA certifications.
NPS contracts for facility maintenance and construction, visitor services (concessions are separate), IT systems, environmental monitoring, archaeological surveys, and interpretive program development. NPS has over 400 parks, monuments, and recreation areas creating distributed procurement across the country. Each region and many individual parks have their own contracting activity.
The U.S. Geological Survey contracts for scientific and technical services supporting natural hazards monitoring, water resources assessment, geospatial data collection, and research. USGS is a significant buyer of remote sensing, geophysical survey services, and scientific computing. Research contracts often follow a cost-reimbursement structure with academic institutions and small research firms.
The Bureau of Safety and Environmental Enforcement (BSEE) regulates offshore oil and gas operations and contracts for environmental enforcement, safety inspections, and technical review services. BSEE also manages contracting for the Gulf Coast Recovery Program. Vendors with marine engineering, environmental science, and offshore safety expertise are particularly relevant.
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