30 CFR Part 28 — Fuses for Use with Direct Current in Providing Short-Circuit Protection for Trailing Cables in Coal Mines
Subpart A — General Provisions
Subpart B — Application for Approval
Subpart C — Approval and Disapproval
- § 28.20— Certificates of approval; scope of approval.
- § 28.21— Certificates of approval; contents.
- § 28.22— Notice of disapproval.
- § 28.23— Approval labels or markings; approval of contents; use.
- § 28.24— Revocation of certificates of approval.
- § 28.25— Changes or modifications of approved fuses; issuance of modification of certificate of approval.