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Pollution and the environmentQuestion 331 of 352

What is a Type III marine sanitation device?

  1. One that treats sewage to 1,000 per 100 ml
  2. One that sprays sewage in the bilge
  3. One made for large ships only
  4. One that stops any sewage from being discharged overboard
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Correct answer: One that stops any sewage from being discharged overboard

A Type III device, such as a holding tank, keeps all sewage or waste from sewage on board.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 159: Marine Sanitation Devices, § 159.3 Definitions

All questionsPractice the topic "Pollution and the environment"

Questions last reviewed: 18 October 2026