Based only on designed passenger capacity, when does a school bus meet the CDL passenger threshold?
Correct answer: C – At 16 or more people, including the driver
Federal CDL standards use a design capacity of 16 or more people, including the driver, as the passenger-based CMV threshold. The Montana manual explains that the passenger endorsement applies at this capacity and that school bus operation requires the school bus endorsement. Vehicle weight may independently trigger CDL requirements.
Source: Montana Commercial Driver License Manual — § 1.2.2, “Endorsements”, 49 CFR § 383.5 — Definitions

