Hazmat Placarding Requirements for CMV Drivers
When hazmat placards are required on CMVs, placard types by hazard class, placement rules, and quantity thresholds under 49 CFR Part 172.
Hazmat Compliance Guides
These guides cover the operational compliance requirements for transporting hazardous materials by highway under the Hazardous Materials Regulations (HMR) in 49 CFR Parts 171–180. The H endorsement allows a CDL driver to transport placardable quantities of hazmat — these pages cover what that entails on every trip.
Hazmat Shipping Papers Checklist for CMV Drivers
Required shipping paper content for hazmat shipments, cab location requirements, and emergency response information under 49 CFR Part 172.
Hazmat Loading and Segregation Rules
Hazmat loading and segregation rules under 49 CFR Part 177: incompatible materials, prohibited co-loading, and driver responsibilities at loading.
Hazmat Route Restrictions for CMV Drivers
Federal and state route restrictions for hazmat highway transport: tunnel restrictions, preferred NRHM routes, and how to identify applicable restrictions.
Hazmat Security Plan Requirements for Carriers
When a hazmat security plan is required under 49 CFR Part 172, what the plan must include, and which materials trigger the requirement.
Hazmat Incident Reporting Requirements
When and how to report hazmat incidents under 49 CFR Part 171: immediate NRC telephone notice and the 30-day written report to PHMSA.
Hazmat Employee Training — 49 CFR Part 172
Federal hazmat training requirements: five function areas, the 90-day initial window, 3-year recurrent cycle, and recordkeeping under Part 172 Subpart H.