43 CFR § 3503.37 - Is there a limit to the acreage of lands I can hold under permits and leases?
---
identifier: "/us/cfr/t43/s3503.37"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "43 CFR § 3503.37 - Is there a limit to the acreage of lands I can hold under permits and leases?"
title_number: 43
title_name: "Public Lands: Interior"
section_number: "3503.37"
section_name: "Is there a limit to the acreage of lands I can hold under permits and leases?"
chapter_name: "BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "MINERALS MANAGEMENT (3000)"
part_number: "3500"
part_name: "LEASING OF SOLID MINERALS OTHER THAN COAL AND OIL SHALE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 552; 30 U.S.C. 189, 192c, and 209; 43 U.S.C. 1701 and sec. 402, Reorganization Plan No. 3 of 1946 (5 U.S.C. appendix)."
regulatory_source: "64 FR 53536, Oct. 1, 1999, unless otherwise noted."
cfr_part: "3500"
---
# 3503.37 Is there a limit to the acreage of lands I can hold under permits and leases?
Yes. The limits are summarized in the following table:
| Commodity | Maximum acreage for a permit or lease | Maximum acreage of permits and leases in any one State | Maximum acreage in permits and leases nationwide |
| --- | --- | --- | --- |
| (a) Phosphate | 2,560 acres | None | 20,480 acres. |
| (b) Sodium | 2,560 acres | 5,120 acres (may be increased to 30,720 acres to facilitate an economic mine) | None. |
| (c) Potassium | 2,560 acres | 96,000 acres (larger if necessary for extraction of potassium from concentrated brines in connection with an existing mining operation) | None. |
| (d) Sulphur | 640 acres | 1,920 acres in 3 leases or permits | None. |
| (e) Gilsonite | 5,120 acres | 7,680 acres | None. |
| (f) Hardrock Minerals | 2,560 | None | None. |
| (g) Asphalt | 640 acres | 2,560 acres | Only available in Oklahoma. |
[64 FR 53536, Oct. 1, 1999, as amended at 65 FR 50449, Aug. 18, 2000; 90 FR 33312, July 17, 2025]