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Course Outline

Pumpout Station sign
Signs like this one are posted at pump-out stations.

In North Dakota, it is illegal to:

  • Discharge, directly or indirectly, any untreated sewage or other wastes into state waters.
  • Place, discharge, or leave a container of untreated sewage or other wastes in or near any state waters.

If your vessel is equipped with a marine toilet or other similar device, it must have an operable marine sanitation device (MSD) on board.

There are three types of MSDs.

  • Types I and II MSDs are usually found on large vessels. Waste is treated with special chemicals to kill bacteria before the waste is discharged. Types I and II MSDs with Y valves that would direct the waste overboard must be secured so that the valve cannot be opened. This can be done by placing a lock or non-reusable seal on the Y valve or by taking the handle off the Y valve.
  • Type III MSDs provide no treatment and are either holding tanks or portable toilets. Collected waste should be taken ashore and disposed of in a pump-out station or onshore toilet.

Vessels 65 feet or less in length may use a Type I, II, or III MSD. Vessels more than 65 feet in length must install a Type II or III MSD.

All installed devices must be USCG–certified.

Pump-out station
MSD Diagram
  • Unit 4 of 6
  • Topic 15 of 19
  • Page 2 of 6