---
kind: "section"
citation: "30 C.F.R. § 56.4531"
title: "30"
number: "56.4531"
heading: "Flammable or combustible liquid storage buildings or rooms."
url: "https://uscodex.org/cfr/30/56.4531"
---

# §56.4531. Flammable or combustible liquid storage buildings or rooms.

- (a) Storage buildings or storage rooms in which flammable or combustible liquids, including grease, are stored and that are within 100 feet of any person's work station shall be ventilated with a sufficient volume of air to prevent the accumulation of flammable vapors.
- (b) In addition, the buildings or rooms shall be—
  - (1) Constructed to meet a fire resistance rating of at least one hour; or
  - (2) Equipped with an automatic fire suppression system; or
  - (3) Equipped with an early warning fire detection device that will alert any person who could be endangered by a fire, provided that no person's work station is in the building.
- (c) Flammable or combustible liquids in use for day-to-day maintenance and operational activities are not considered in storage under this standard.

## Notes

### Authority

Authority: Sec. 101, Federal Mine Safety and Health Act of 1977, Pub. L. 91-173, as amended by Pub. L. 95-164, 91 Stat. 1291 (30 U.S.C. 811).

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4054, Jan. 29, 1985, unless otherwise noted.