Without a hazardous-materials endorsement, when may a CDL holder transport a hazardous-material shipment?
Correct answer: C – When the shipment requires no placards and is not a regulated select agent or toxin
In Ohio, a driver generally needs an H endorsement when transporting hazardous materials that require placards. Federal CDL rules also cover any quantity of a listed select agent or toxin. A shipment below 1,001 pounds is not automatically exempt because some hazardous materials require placards in any amount.
Source: Ohio Commercial Driver License Manual — § 1, “CDL Endorsements & Restrictions”, 49 CFR § 383.5 – Definitions, 49 CFR § 383.93(b)(4) – Endorsements

