[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR56.4430]

[Page 264-265]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 56--SAFETY AND HEALTH STANDARDS--SURFACE METAL AND NONMETAL MINES--Table of Contents
 
                 Subpart C--Fire Prevention and Control
 
Sec. 56.4430  Storage facilities.

    (a) Storage tanks for flammable or combustible liquids shall be--
    (1) Capable of withstanding working pressures and stresses and 
compatible with the type of liquid stored;
    (2) Maintained in a manner that prevents leakage;
    (3) Isolated or separated from ignition sources to prevent fire or 
explosion; and
    (4) Vented or otherwise constructed to prevent development of 
pressure or vacuum as a result of filling, emptying, or atmospheric 
temperature changes. Vents for storage of Class I, II, or IIIA liquids 
shall be isolated or separated from ignition sources. These pressure 
relief requirements do not apply to tanks used for storage of Class IIIB 
liquids that are larger than 12,000 gallons in capacity.
    (b) All piping, valves, and fittings shall be--
    (1) Capable of withstanding working pressures and stresses;
    (2) Compatible with the type of liquid stored; and
    (3) Maintained in a manner that prevents leakage.

[[Page 265]]

    (c) Fixed, unburied tanks located where escaping liquid could 
present a hazard to persons shall be provided with--
    (1) Containment for the entire capacity of the largest tank; or
    (2) Drainage of a remote impoundment area that does not endanger 
persons. However, storage of only Class IIIB liquids does not require 
containment or drainage to remote impoundment.

                  Installation/Construction/Maintenance