CDL Hazardous Materials Endorsement (HME)Communication RulesEasy
A driver is transporting a shipment of UN1950, Aerosols, Class 2.1, in non-bulk packages. Each package contains multiple aerosol cans. What specific marking is required on each individual non-bulk package, in addition to the hazard label?
- AThe emergency response telephone number.
- BThe gross weight of the package.
- CThe technical name of the material.
- DThe UN identification number preceded by 'UN' or 'NA'.
Show answer & explanationAnswer & explanation
Correct answer: D. The UN identification number preceded by 'UN' or 'NA'.
For non-bulk packages containing hazardous materials, the UN identification number (preceded by 'UN' or 'NA') is a mandatory marking. This allows for quick identification of the specific hazardous material.
Why the other options are wrong
- A. Emergency response telephone numbers are typically on shipping papers, not individual package markings.
- B. Gross weight is often required, but not the primary specific marking required for hazard identification.
- C. Technical names are required for certain N.O.S. entries, but not universally for all non-bulk packages.
Non-Bulk Package ID Marking
The requirement to display the UN or NA identification number on non-bulk packages containing hazardous materials.
- Mandatory on each non-bulk package.
- Must be preceded by 'UN' or 'NA'.
- Aids in rapid identification of contents.
Memory trick: UN number, label bright, keeps hazmat in plain sight.