30 CFR § 939.817 - Performance standards—underground mining activities.

---
identifier: "/us/cfr/t30/s939.817"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 939.817 - Performance standards—underground mining activities."
title_number: 30
title_name: "Mineral Resources"
section_number: "939.817"
section_name: "Performance standards—underground mining activities."
chapter_name: "OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "T"
subchapter_name: "PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE"
part_number: "939"
part_name: "RHODE ISLAND"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 1201"
regulatory_source: "48 FR 40995, Sept. 12, 1983, unless otherwise noted."
cfr_part: "939"
---


# 939.817 Performance standards—underground mining activities.

Part 817 of this chapter, *Permanent Program Performance Standards—Underground Mining Activities,* shall apply to any person who conducts underground coal mining operations.