CFR›Title 30›Chapter I›Part 28›Subpart A ContainsSections 28.1–28.4CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General Provisions Sections 28.1 § 28.1 Purpose. 28.2 § 28.2 Approved fuses. 28.3 § 28.3 Installation, use, and maintenance of approved fuses. 28.4 § 28.4 Definitions. Next B Subpart B—Application for Approval