You are using an unsupported browser. This web site is designed for the current versions of Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari.
The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. We recommend you directly contact the agency associated with the content in question.
If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below.
If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency
Enhanced content is provided to the user to provide additional context.
This content is from the eCFR and is authoritative but unofficial.
Navigate by entering citations or phrases (eg: 1 CFR 1.1 49 CFR 172.101 Organization and Purpose 1/1.1 Regulation Y FAR).
Choosing an item from citations and headings will bring you directly to the content. Choosing an item from full text search results will bring you to those results. Pressing enter in the search box will also bring you to search results.
Background and more details are available in the Search & Navigation guide.
50 FR 4082, Jan. 29, 1985, unless otherwise noted.
61 FR 36801, July 12, 1996, unless otherwise noted.
This content is from the eCFR and may include recent changes applied to the CFR. The official, published CFR, is updated annually and available below under "Published Edition". You can learn more about the process here.
Subscribe to: 30 CFR Part 57 Subpart E - Storage—Underground Only
No changes found for this content after 1/03/2017.
View the most recent official publication:
These links go to the official, published CFR, which is updated annually. As a result, it may not include the most recent changes applied to the CFR. Learn more.
Information and documentation can be found in our developer resources.
The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.
Learn more about the eCFR, its status, and the editorial process.
(a) Main facilities used to store explosive material underground shall be located—
(1) In stable or supported ground;
(2) So that a fire or explosion in the storage facilities will not prevent escape from the mine, or cause detonation of the contents of another storage facility;
(3) Out of the line of blasts, and protected from vehicular traffic, except that accessing the facility;
(4) At least 200 feet from work places or shafts;
(5) At least 50 feet from electric substations;
(6) A safe distance from trolley wires; and
(7) At least 25 feet from detonator storage facilities.
(b) Main facilities used to store explosive material underground shall be—
(1) Posted with warning signs that indicate the contents and are visible from any approach;
(2) Used exclusively for the storage of explosive material and necessary equipment associated with explosive material storage and delivery:
(i) Portions of the facility used for the storage of explosives shall only contain nonsparking material or equipment.
(ii) The blasting agent portion of the facility may be used for the storage of other necessary equipment;
(3) Kept clean, suitably dry, and orderly;
(4) Provided with unobstructed ventilation openings;
(5) Kept securely locked unless all access to the mine is either locked or attended; and
(6) Unlighted or lighted only with devices that do not create a fire or explosion hazard and which are specifically designed for use in magazines.
(c) Electrical switches and outlets shall be located outside the facility.
(a) Auxiliary facilities used to store explosive material near work places shall be wooden, box-type containers equipped with covers or doors, or facilities constructed or mined-out to provide equivalent impact resistance and confinement.
(b) The auxiliary facilities shall be—
(1) Constructed of nonsparking material on the inside when used for the storage of explosives;
(2) Kept clean, suitably dry, and orderly;
(3) Kept in repair;
(4) Located out of the line of blasts so they will not be subjected to damaging shock or flyrock;
(5) Identified with warning signs or coded to indicate the contents with markings visible from any approach;
(6) Located at least 15 feet from all haulageways and electrical equipment, or placed entirely within a mined-out recess in the rib used exclusively for explosive material;
(7) Filled with no more than a one-week supply of explosive material;
(8) Separated by at least 25 feet from other facilities used to store detonators; and
(9) Kept securely locked unless all access to the mine is either locked or attended.