43 CFR § 3594.1 - Ultimate maximum recovery.

---
identifier: "/us/cfr/t43/s3594.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "43 CFR § 3594.1 - Ultimate maximum recovery."
title_number: 43
title_name: "Public Lands: Interior"
section_number: "3594.1"
section_name: "Ultimate maximum recovery."
chapter_name: "BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "MINERALS MANAGEMENT (3000)"
part_number: "3590"
part_name: "SOLID MINERALS (OTHER THAN COAL) EXPLORATION AND MINING OPERATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. Appendix; 16 U.S.C. 90c-1, 460n-5, 460q-5, 460dd-2  460mm-4, 508(b); 25 U.S.C. 396d, 2107; 30 U.S.C. 189, 192c, 293, 359; 31 U.S.C. 9701; 42 U.S.C. 4321  43 U.S.C. 1201, 1732(b), 1733, 1740; 35 Stat. 315; 47 Stat. 1487."
regulatory_source: "53 FR 39461, Oct. 7, 1988, unless otherwise noted."
cfr_part: "3590"
---


# 3594.1 Ultimate maximum recovery.

(a) Mining operations shall be conducted in a manner to yield the ultimate maximum recovery of the mineral deposits, consistent with the protection and use of other natural resources and the protection and preservation of the environment—land, water and air. All shafts, main exits and passageways, as well as overlying beds or mineral deposits that at a future date may be of economic importance, shall be protected by adequate pillars in the deposit being worked or by such other means as approved by the authorized officer.

(b) New geologic information obtained during mining regarding any mineral deposits on the lease shall be fully recorded and a copy of the record furnished to the authorized officer, if requested.