Which item is required equipment on a bus power unit operating in normal service?
Correct answer: A. – A properly rated fire extinguisher
A bus power unit must carry a properly rated, securely mounted, and accessible fire extinguisher. It must also carry approved warning devices for a stopped vehicle. The former federal requirement to carry spare electrical fuses was removed in 2026, and the regulations do not generally require a repair tool kit or portable battery charger.
Source: 49 CFR § 393.95 — Emergency Equipment on All Power Units, 91 Fed. Reg. 7877 — Parts and Accessories Necessary for Safe Operation; Spare Fuses

