Chapter I — Bureau of Indian Affairs, Department of the Interior
- Subch. A Procedures and Practice §§1.1 to 5.4
- Subch. B Law and Order §§10.1 to 13.16
- Subch. C Probate §§15.1 to 18.401
- Subch. D Human Services §§20.100 to 26.38
- Subch. E Education §§30.100 to 48.209
- Subch. F Tribal Government §§61.1 to 91.15
- Subch. G Financial Activities §§101.1 to 143.5
- Subch. H Land and Water §§150.1 to 183.18
- Subch. I Energy and Minerals §§200.1-200.10 to 227.30
- Subch. J Fish and Wildlife §§241.1 to 249.7
- Subch. K Housing §§256.1 to 256.30
- Subch. L Heritage Preservation §§262.1 to 265.3
- Subch. M Indian Self-Determination and Education Assistance Act Program §§273.101 to 276.17
- Subch. N Economic Enterprises §§286.1 to 293.31
- Subch. O Miscellaneous [reserved]