Connecticut Safe Boating Study Guide


HUMAN WASTE DISPOSAL

MARINE SANITATION DEVICE (MSD)

Boats operating inland with an installed toilet must also have a sanitation system to prevent pollution and discharge of raw sewage. A typical sanitation system consists of an installed toilet, a waste treatment system, and/or a holding tank. Be sure to check your marine sanitation device (MSD) for U.S. Coast Guard Certification.

MSD TYPE

LEGAL FOR

FUNCTIONALITY

Type I

Boats under 65 ft.

Treat waste and discharge overboard

Type II

Any vessel

More powerful treatment of waste discharge

Type III

Any vessel

Collect waste in holding tank for removal at pump-out stations (most common)

Portable toilet

All vessels on the water

Collect waste in holding tank—does not treat waste

Pump-out signs are displayed at marinas with pump-out facilities throughout the United States (Figure 1 is a sample of a pump-out sign). Check with local marinas to locate convenient pump-out stations prior to your voyage.

Pump-Out Station Ahead

Figure 1: Pump-out station sign

Pump-Out Station Functionality