CDL Hazardous Materials Endorsement (HME)Communication RulesHard

A driver is transporting a portable tank containing UN1993, Flammable liquids, N.O.S., Class 3, PG III. The tank is being used for a material that is not specifically listed in the Hazardous Materials Table. What specific marking is required on the portable tank in addition to the identification number and appropriate placards?

  1. AThe gross weight of the portable tank.
  2. BThe emergency response telephone number.
  3. CThe technical names of the hazardous components.
  4. DThe words 'HAZARDOUS SUBSTANCE'.
Show answer & explanation

Correct answer: C. The technical names of the hazardous components.

When transporting a hazardous material using an N.O.S. (Not Otherwise Specified) entry, the technical names of the hazardous components must be displayed in parentheses with the proper shipping name on the shipping papers and, for bulk packagings like portable tanks, adjacent to the proper shipping name on the tank itself.

Why the other options are wrong

  • A. The gross weight might be on the tank for operational reasons, but it's not a specific hazardous material marking requirement for an N.O.S. entry.
  • B. The emergency response telephone number is required on shipping papers, not typically marked on the bulk packaging itself.
  • D. 'HAZARDOUS SUBSTANCE' is a specific designation for environmental hazards, not generally required for N.O.S. entries.

Bulk N.O.S. Marking

Bulk packagings containing N.O.S. (Not Otherwise Specified) hazardous materials must display the technical names of the hazardous components along with the proper shipping name.

  • Applies to bulk packagings (e.g., portable tanks, cargo tanks).
  • Required for N.O.S. (Not Otherwise Specified) entries.
  • Technical names of hazardous components are displayed.
  • Usually in parentheses, adjacent to the proper shipping name.

Memory trick: N.O.S. in bulk? Tech names, you must include, to make it clear.

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