30 CFR § 28.21 Certificates of approval; contents.
(a) Each certificate of approval shall contain a description of the
fuse and a classification of its current-interrupting capacity and current
(b) The certificate of approval shall specifically set forth any
restrictions or limitations on the use of the fuse in providing short-circuit
protection for trailing cables.
(c) Each certificate of approval shall be accompanied by a
reproduction of the approval label or marking design, as appropriate, to be
employed by the applicant with each approved fuse as provided in
(d) No test data or specific laboratory findings will accompany any
certificate of approval; however, MSHA will release analyses of pertinent
test data and specific findings upon receipt of a written request by the
applicant, or when required by statute or regulation.
(e) Each certificate of approval shall also contain the approved
quality control plan as specified in §28.31.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401