What does “RQ” beside a hazardous-material description on a shipping paper indicate?
Correct answer: D. – The shipment includes a hazardous substance in a reportable quantity
Federal hazardous-materials regulations use RQ to mean reportable quantity. The notation identifies a hazardous substance present in one package at or above its listed reportable quantity, subject to the applicable concentration rules. Alaska’s CDL manual also requires the letters RQ to appear with the shipping description when a reportable quantity is being transported.
Source: Alaska Commercial Driver License Manual — § 9.3.5, “The Item Description”, 49 CFR § 171.8 — Definitions and abbreviations, 49 CFR § 172.203(c)(2) — Additional description requirements

