---
kind: "unit"
title: "43"
title_heading: "Public Lands: Interior"
key: "subtB/chII/subchC/part3820/subpart3821"
level: "subpart"
label: "Subpart 3821"
heading: "O and C Lands"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/43/subtB-chII-subchC-part3820-subpart3821"
sections_count: 5
---

# Subpart 3821 — O and C Lands

Title 43 C.F.R. — Public Lands: Interior › Subtitle B — Regulations Relating to Public Lands › Chapter II — Bureau of Land Management, Department of the Interior › Subchapter C — Minerals Management (3000) › Part 3820 — Areas Subject to Special Mining Laws

## Sections

- [§3821.0-3. Authority.](/cfr/43/3821.0-3.md)
- [§3821.1. General provisions.](/cfr/43/3821.1.md)
- [§3821.2. Requirements for filing notices of locations of claims; descriptions.](/cfr/43/3821.2.md)
- [§3821.4. Restriction on use of timber; application for such use.](/cfr/43/3821.4.md)
- [§3821.5. Applications for final certificates and patents.](/cfr/43/3821.5.md)