CDL Hazardous Materials Endorsement (HME)Communication RulesMedium
A driver is transporting a portable tank containing UN1993, Flammable liquids, N.O.S., Class 3, PG III. The tank has a capacity of 1,500 gallons. In addition to the identification number, what other marking is specifically required on the portable tank itself, near the identification number, when transporting this material?
- AThe words 'RESIDUE: LAST CONTAINED'
- BThe subsidiary hazard class label
- CThe ERG guide number
- DThe technical name of the hazardous material
Show answer & explanationAnswer & explanation
Correct answer: D. The technical name of the hazardous material
For N.O.S. (Not Otherwise Specified) entries in bulk packagings, the technical name of the hazardous material must be displayed on the bulk packaging itself, in association with the identification number, to provide more specific information.
Why the other options are wrong
- A. The 'RESIDUE: LAST CONTAINED' marking is used for empty, uncleaned bulk packagings that previously held hazardous materials; this question describes an active shipment.
- B. Subsidiary hazard class labels are applied if the material has a significant secondary hazard, but the question asks for a specific marking near the ID number for N.O.S. bulk packaging.
- C. The ERG guide number is typically on shipping papers or emergency response information, not directly marked on the bulk packaging itself.
Bulk N.O.S. Packaging Marking
When transporting a 'Not Otherwise Specified' (N.O.S.) hazardous material in bulk packaging, the technical name of the material must be displayed on the packaging near the identification number.
- Applies to N.O.S. entries only.
- Required on bulk packagings (e.g., portable tanks, cargo tanks).
- Provides specific identification of the hazard.
Memory trick: N.O.S. needs 'NO Specific' name, but for bulk, you MUST 'Know the Specific'!