Practice question

When should placards be removed or covered?

  1. Every time the vehicle parks
  2. Only after inspection
  3. Never after a trailer has hauled HazMat
  4. When they no longer represent HazMat or residue requiring placards

Answer: D — When they no longer represent HazMat or residue requiring placards

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Practice more: Washington CDL HazMat Endorsement Test Practice Questions - Washington CDL Hazardous Materials Endorsement Test Exam →