30 CFR § 56.4000 - Definitions.
---
identifier: "/us/cfr/t30/s56.4000"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 56.4000 - Definitions."
title_number: 30
title_name: "Mineral Resources"
section_number: "56.4000"
section_name: "Definitions."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "K"
subchapter_name: "METAL AND NONMETAL MINE SAFETY AND HEALTH"
part_number: "56"
part_name: "SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 811."
regulatory_source: "50 FR 4054, Jan. 29, 1985, unless otherwise noted."
cfr_part: "56"
---
# 56.4000 Definitions.
The following definitions apply in this subpart.
*Flash point.* The minimum temperature at which sufficient vapor is released by a liquid to form a flammable vapor-air mixture near the surface of the liquid.
*Safety can.* A container of not over five gallons capacity that is designed to safely relieve internal pressure when exposed to heat and has a spring-closing lid and spout cover.
[50 FR 4054, Jan. 29, 1985, as amended at 68 FR 32361, May 30, 2003; 69 FR 38840, June 29, 2004]