• Part 1 [§ 1.1 - § 1.6] - PART 1—PRACTICES BEFORE THE DEPARTMENT OF THE INTERIOR

• Part 2 [§ 2.1 - § 2.303] - PART 2—FREEDOM OF INFORMATION ACT; RECORDS AND TESTIMONY

• Part 3 [§ 3.1 - § 3.17] - PART 3—PRESERVATION OF AMERICAN ANTIQUITIES

• Part 4 [§ 4.1 - § 4.1610] - PART 4—DEPARTMENT HEARINGS AND APPEALS PROCEDURES

• Part 5 [§ 5.1 - § 5.18] - PART 5—COMMERCIAL FILMING AND SIMILAR PROJECTS AND STILL PHOTOGRAPHY ON CERTAIN AREAS UNDER DEPARTMENT JURISDICTION

• Part 6 [§ 6.1 - § 6.57] - PART 6—PATENT REGULATIONS

• Part 7 [§ 7.1 - § 7.37] - PART 7—PROTECTION OF ARCHAEOLOGICAL RESOURCES

• Part 8 [§ 8.0 - § 8.7] - PART 8—JOINT POLICIES OF THE DEPARTMENTS OF THE INTERIOR AND OF THE ARMY RELATIVE TO RESERVOIR PROJECT LANDS

• Part 9 [§ 9.1 - § 9.13] - PART 9—INTERGOVERNMENTAL REVIEW OF DEPARTMENT OF THE INTERIOR PROGRAMS AND ACTIVITIES

• Part 10 [§ 10.1 - § 10.12] - PART 10—NATIVE AMERICAN GRAVES PROTECTION AND REPATRIATION REGULATIONS

• Part 11 [§ 11.10 - § 11.93] - PART 11—NATURAL RESOURCE DAMAGE ASSESSMENTS

• Part 12 - PART 12 [RESERVED]

• Part 13 [§ 13.1 - § 13.6] - PART 13—VENDING FACILITIES OPERATED BY BLIND PERSONS

• Part 14 [§ 14.1 - § 14.4] - PART 14—PETITIONS FOR RULEMAKING

• Part 15 [§ 15.1 - § 15.14] - PART 15—KEY LARGO CORAL REEF PRESERVE

• Part 16 [§ 16.1 - § 16.5] - PART 16—CONSERVATION OF HELIUM

• Part 17 [§ 17.1 - § 17.570] - PART 17—NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OF THE DEPARTMENT OF THE INTERIOR

• Part 18 [§ 18.100 - § 18.605] - PART 18—NEW RESTRICTIONS ON LOBBYING

• Part 19 [§ 19.1 - § 19.8] - PART 19—WILDERNESS PRESERVATION

• Part 20 [§ 20.101 - § 20.603] - PART 20—EMPLOYEE RESPONSIBILITIES AND CONDUCT

• Part 21 [§ 21.1 - § 21.8] - PART 21—OCCUPANCY OF CABIN SITES ON PUBLIC CONSERVATION AND RECREATION AREAS

• Part 22 [§ 22.1 - § 22.6] - PART 22—ADMINISTRATIVE CLAIMS UNDER THE FEDERAL TORT CLAIMS ACT AND INDEMNIFICATION OF DEPARTMENT OF THE INTERIOR EMPLOYEES

• Part 23 [§ 23.1 - § 23.13] - PART 23—SURFACE EXPLORATION, MINING AND RECLAMATION OF LANDS

• Part 24 [§ 24.1 - § 24.7] - PART 24—DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE POLICY: STATE-FEDERAL RELATIONSHIPS

• Part 26 [§ 26.1 - § 26.9] - PART 26—GRANTS TO STATES FOR ESTABLISHING YOUTH CONSERVATION CORPS PROGRAMS

• Part 27 [§ 27.1 - § 27.14] - PART 27—NONDISCRIMINATION IN ACTIVITIES CONDUCTED UNDER PERMITS, RIGHTS-OF-WAY, PUBLIC LAND ORDERS, AND OTHER FEDERAL AUTHORIZATIONS GRANTED OR ISSUED UNDER TITLE II OF PUBLIC LAW 93-153

• Part 28 [§ 28.1 - § 28.3] - PART 28—FIRE PROTECTION EMERGENCY ASSISTANCE

• Part 29 [§ 29.1 - § 29.14] - PART 29—TRANS-ALASKA PIPELINE LIABILITY FUND

• Part 30 [§ 30.100 - § 30.507] - PART 30—INDIAN PROBATE HEARINGS PROCEDURES

• Part 32 [§ 32.1 - § 32.9] - PART 32—GRANTS TO STATES FOR ESTABLISHING YOUNG ADULT CONSERVATION CORPS (YACC) PROGRAM

• Part 33 - PART 33—ALLOCATION OF DUTY-FREE WATCHES FROM THE VIRGIN ISLANDS, GUAM, AND AMERICAN SAMOA [NOTE]

• Part 34 [§ 34.1 - § 34.11] - PART 34—REQUIREMENTS FOR EQUAL OPPORTUNITY DURING CONSTRUCTION AND OPERATION OF THE ALASKA NATURAL GAS TRANSPORTATION SYSTEM

• Part 35 [§ 35.1 - § 35.47] - PART 35—ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS AND STATEMENTS

• Part 36 [§ 36.1 - § 36.13] - PART 36—TRANSPORTATION AND UTILITY SYSTEMS IN AND ACROSS, AND ACCESS INTO, CONSERVATION SYSTEM UNITS IN ALASKA

• Part 37 [§ 37.1 - § 37.12] - PART 37—CAVE MANAGEMENT

• Part 38 [§ 38.1 - § 38.3] - PART 38—PAY OF U.S. PARK POLICE—INTERIM GEOGRAPHIC ADJUSTMENTS

• Part 39 [§ 39.1 - § 39.2] - PART 39—COLLECTION OF DEBTS BY ADMINISTRATIVE WAGE GARNISHMENT

• Part 41 [§ 41.100 - § 41.605] - PART 41—NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE

• Part 44 [§ 44.10 - § 44.57] - PART 44—FINANCIAL ASSISTANCE, LOCAL GOVERNMENTS

• Part 45 [§ 45.1 - § 45.75] - PART 45—CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES

• Part 46 [§ 46.10 - § 46.450] - PART 46—IMPLEMENTATION OF THE NATIONAL ENVIRONMENTAL POLICY ACT OF 1969

• Part 47 [§ 47.5 - § 47.70] - PART 47—LAND EXCHANGE PROCEDURES

• Part 48 [§ 48.5 - § 48.50] - PART 48—AMENDMENTS TO THE HAWAIIAN HOMES COMMISSION ACT

• Part 49 [§ 49.1 - § 49.810] - PART 49—PALEONTOLOGICAL RESOURCES PRESERVATION

• Part 50 [§ 50.1 - § 50.44] - PART 50—PROCEDURES FOR REESTABLISHING A FORMAL GOVERNMENT-TO-GOVERNMENT RELATIONSHIP WITH THE NATIVE HAWAIIAN COMMUNITY

• Part 51-99 - PARTS 51-99 [RESERVED]

• Part 100 [§ 100.100 - § 100.304] - PART 100—WAIVING DEPARTMENTAL REVIEW OF APPRAISALS AND VALUATIONS OF INDIAN PROPERTY

• Part 101-199 - PARTS 101-199 [RESERVED]

• Chapter I [§ 402.1 - § 431.9] - CHAPTER I—BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR

• Chapter II [§ 1601.0-1 - § 9269.3-5] - CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR

• Chapter III [§ 10000.1 - § 10010.62] - CHAPTER III—UTAH RECLAMATION MITIGATION AND CONSERVATION COMMISSION