---
kind: "unit"
title: "43"
title_heading: "Public Lands: Interior"
key: "subtA"
level: "subtitle"
label: "Subtitle A"
heading: "Office of the Secretary of the Interior"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/43/subtA"
sections_count: 1449
---

# Subtitle A — Office of the Secretary of the Interior

Title 43 C.F.R. — Public Lands: Interior

## Contents

- [Part 1 — Practices Before the Department of the Interior](/cfr/43/subtA-part1.md)
- [Part 2 — Freedom of Information Act; Records and Testimony](/cfr/43/subtA-part2.md)
- [Part 3 — Preservation of American Antiquities](/cfr/43/subtA-part3.md)
- [Part 4 — Department of the Interior Hearings and Appeals Procedures](/cfr/43/subtA-part4.md)
- [Part 5 — Commercial Filming and Similar Projects and Still Photography on Certain Areas under Department Jurisdiction](/cfr/43/subtA-part5.md)
- [Part 6 — Patent Regulations](/cfr/43/subtA-part6.md)
- [Part 7 — Protection of Archaeological Resources](/cfr/43/subtA-part7.md)
- [Part 8 — Joint Policies of the Departments of the Interior and of the Army Relative to Reservoir Project Lands](/cfr/43/subtA-part8.md)
- [Part 9 — Intergovernmental Review of Department of the Interior Programs and Activities](/cfr/43/subtA-part9.md)
- [Part 10 — Native American Graves Protection and Repatriation Regulations](/cfr/43/subtA-part10.md)
- [Part 11 — Natural Resource Damage Assessments](/cfr/43/subtA-part11.md)
- [Part 12 — Part 12 [reserved]](/cfr/43/subtA-part12.md)
- [Part 13 — Vending Facilities Operated by Blind Persons](/cfr/43/subtA-part13.md)
- [Part 14 — Petitions for Rulemaking](/cfr/43/subtA-part14.md)
- [Part 15 — Key Largo Coral Reef Preserve](/cfr/43/subtA-part15.md)
- [Part 16 — Conservation of Helium](/cfr/43/subtA-part16.md)
- [Part 17 — Nondiscrimination in Federally Assisted Programs of the Department of the Interior](/cfr/43/subtA-part17.md)
- [Part 18 — New Restrictions on Lobbying](/cfr/43/subtA-part18.md)
- [Part 19 — Wilderness Preservation](/cfr/43/subtA-part19.md)
- [Part 20 — Employee Responsibilities and Conduct](/cfr/43/subtA-part20.md)
- [Part 21 — Occupancy of Cabin Sites on Public Conservation and Recreation Areas](/cfr/43/subtA-part21.md)
- [Part 22 — Administrative Claims under the Federal Tort Claims Act and Indemnification of Department of the Interior Employees](/cfr/43/subtA-part22.md)
- [Part 23 — Surface Exploration, Mining and Reclamation of Lands](/cfr/43/subtA-part23.md)
- [Part 24 — Department of the Interior Fish and Wildlife Policy: State-Federal Relationships](/cfr/43/subtA-part24.md)
- [Part 26 — Grants to States for Establishing Youth Conservation Corps Programs](/cfr/43/subtA-part26.md)
- [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](/cfr/43/subtA-part27.md)
- [Part 28 — Fire Protection Emergency Assistance](/cfr/43/subtA-part28.md)
- [Part 29 — Trans-Alaska Pipeline Liability Fund](/cfr/43/subtA-part29.md)
- [Part 30 — Indian Probate Hearings Procedures](/cfr/43/subtA-part30.md)
- [Part 32 — Grants to States for Establishing Young Adult Conservation Corps (yacc) Program](/cfr/43/subtA-part32.md)
- [Part 33 — Allocation of Duty-Free Watches from the Virgin Islands, Guam, and American Samoa [note]](/cfr/43/subtA-part33.md)
- [Part 34 — Requirements for Equal Opportunity During Construction and Operation of the Alaska Natural Gas Transportation System](/cfr/43/subtA-part34.md)
- [Part 35 — Administrative Remedies for Fraudulent Claims and Statements](/cfr/43/subtA-part35.md)
- [Part 36 — Transportation and Utility Systems in and Across, and Access into, Conservation System Units in Alaska](/cfr/43/subtA-part36.md)
- [Part 37 — Cave Management](/cfr/43/subtA-part37.md)
- [Part 38 — Pay of U.s. Park Police—interim Geographic Adjustments](/cfr/43/subtA-part38.md)
- [Part 39 — Collection of Debts by Administrative Wage Garnishment](/cfr/43/subtA-part39.md)
- [Part 41 — Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance](/cfr/43/subtA-part41.md)
- [Part 44 — Financial Assistance, Local Governments](/cfr/43/subtA-part44.md)
- [Part 45 — Conditions and Prescriptions in Ferc Hydropower Licenses](/cfr/43/subtA-part45.md)
- [Part 46 — Implementation of the National Environmental Policy Act of 1969](/cfr/43/subtA-part46.md)
- [Part 47 — Land Exchange Procedures](/cfr/43/subtA-part47.md)
- [Part 48 — Amendments to the Hawaiian Homes Commission Act](/cfr/43/subtA-part48.md)
- [Part 49 — Paleontological Resources Preservation](/cfr/43/subtA-part49.md)
- [Part 50 — Procedures for Reestablishing a Formal Government-To-Government Relationship with the Native Hawaiian Community](/cfr/43/subtA-part50.md)
- [Part 51 — Subsistence Management Regulations for Public Lands in Alaska](/cfr/43/subtA-part51.md)
- [Part 52-99 — Parts 52-99 [reserved]](/cfr/43/subtA-part52-99.md)
- [Part 100 — Waiving Departmental Review of Appraisals and Valuations of Indian Property](/cfr/43/subtA-part100.md)
- [Part 101-199 — Parts 101-199 [reserved]](/cfr/43/subtA-part101-199.md)