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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 muffling device.

  • The use of cutouts or exhaust stacks is prohibited.
  • It is illegal to modify the muffling system if the result is increased noise.
  • Vessels without a muffling device must be retrofitted with one.
  • Unit 4 of 6
  • Topic 8 of 19
  • Page 4 of 4