Department of The Interior (DOI)

• Website, https://www.doi.gov/
  • Bureaus of the DOI
    • Indian Affairs 
      • Website, https://www.bia.gov/
      • Regulations: Code of Federal Regulations, Title 25, Chapter 1.
    • Bureau of Land Management 
      • Website, https://www.blm.gov/
      • Regulations: Code of Federal Regulations, Title 43, Chapter 2.
    • National Park Service 
      • Website, https://www.nps.gov/index.htm
      • Regulations: Code of Federal Regulations, Title 36, Chapter 1.