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Course Outline

Vessel operators may not hear sound signals or voices if the engine is not adequately muffled.

  • All vessel engines must be equipped with an effective, permanently installed muffling system that muffles the noise of the exhaust in a reasonable manner.
  • Cut-outs are prohibited.
  • Unit 4 of 6
  • Topic 8 of 19
  • Page 4 of 4