Certificates of approval; contents.

§ 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 rating. (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 § 28.23. (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.