CDL Hazardous Materials Endorsement (HME)Hazardous Materials RegulationsMedium

A driver is transporting a package marked 'RQ, Corrosive Liquid, Acidic, Inorganic, N.O.S., 8, UN3264, PG II'. What does 'RQ' indicate on this shipping paper entry?

  1. ARegulatory Quality
  2. BRequired Quantity
  3. CRestricted Quantity
  4. DReportable Quantity
Show answer & explanation

Correct answer: D. Reportable Quantity

The 'RQ' symbol on a shipping paper entry for a hazardous material indicates that the material is a 'Reportable Quantity' as defined by EPA regulations. This means that if there is a release of this material in a quantity equal to or greater than its RQ, it must be reported to appropriate authorities.

Why the other options are wrong

  • A. This is not the correct meaning of 'RQ' in hazardous materials transport.
  • B. This is not the correct meaning of 'RQ' in hazardous materials transport.
  • C. This is not the correct meaning of 'RQ' in hazardous materials transport.

Reportable Quantity (RQ)

A Reportable Quantity (RQ) is the amount of a hazardous substance that, if released into the environment, requires immediate reporting to the National Response Center (NRC) and other appropriate government agencies.

  • Defined by EPA under CERCLA.
  • Indicated by 'RQ' on shipping papers.
  • Triggers mandatory incident reporting if released above the threshold.

Memory trick: RQ on paper? Release it, and you'll Report Quite Fast!

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