Question 126 of 180

Why must placards be kept clean and clearly legible, not covered by dirt, other cargo markings, or damage?

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Placards only need to be legible during scheduled roadside inspections
An illegible placard fails to communicate the hazard clearly to responders or others who need the information quickly
Legibility requirements apply only to placards on tank vehicles
Placards only need to be legible while the vehicle is parked, not moving

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Correct answer to question 126 (Hazardous Materials): An illegible placard fails to communicate the hazard clearly to responders or others who need the information quickly

Why

A placard that is dirty, obscured, or damaged cannot communicate the hazard effectively, and since placards exist to quickly inform responders and others, they must stay clean and legible at all times, not just during inspections.

Updated: November 2026

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Why must placards be kept clean and clearly legible, not covered by dirt, other cargo markings, or damage?

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