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Alcohol and drugsQuestion 300 of 352

Who may direct a boat operator to take a chemical test when there is reasonable cause?

  1. Any passenger on the boat
  2. A law enforcement officer or a marine employer
  3. Any other boat operator
  4. A dock worker
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Correct answer: A law enforcement officer or a marine employer

Only those two may direct the test, and only with reasonable cause.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 95: Operating a Vessel While Under the Influence of Alcohol or a Dangerous Drug, § 95.035 Reasonable cause for directing a chemical test

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Questions last reviewed: 18 October 2026