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Chapter 4: The Legal Requirements of Boating
Waste, Oil, and Trash Disposal In Indiana and Federal Waters

It is illegal to discharge waste, oil, or trash into any Indiana state or federally-controlled waters. This is for very good reasons.

  • Sewage carries disease and other pollutants that are harmful to people, aquatic plants, and animals.
  • Trash thrown into the water can injure swimmers and wildlife alike. It also can plug engine cooling water intakes.
  • Pollution is unsightly and takes away from your enjoyment of the water.

Vessel operators need to be aware of the following regulations for waste, oil, and trash disposal that apply to both federally-controlled and state waters. The Refuse Act prohibits throwing, discharging, or depositing any refuse matter of any kind (including trash, garbage, oil, and other liquid pollutants) into the waters of the United States.

Pumpout Station sign

Signs like these are posted at pump-out stations in Indiana.

MSD and Pump-Out Station Diagram

Discharge of Sewage and Waste

It is illegal to discharge untreated waste into any state or federally-controlled waters.

If you have a recreational vessel with installed toilet facilities, it must have an operable marine sanitation device (MSD) on board that is approved by the Indiana Department of Environmental Management. You may get more information on treatment systems by contacting them at 1-800-451-6027.

There are three types of MSDs.

  • Type III MSD, the simplest and most common, consists of holding tanks or portable toilets. It requires only a small storage space and is simple to operate. Type III MSDs have the least effect on the environment since the waste is to be discharged on shore into a local sewage treatment facility.
  • 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. A Type I or II MSD can be operated lawfully on Lake Michigan only if maintained according to U.S. Coast Guard regulations.

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

All installed devices must be U.S. Coast Guard–certified.

Discharge of Trash

Indiana prohibits littering in state waters. The Act to Prevent Pollution from Ships places limitations on the discharge of garbage from vessels. Many forms of litter can kill birds, fish, and marine mammals.

  • It is illegal to dump refuse, garbage, or plastics into any state or federally-controlled waters.
  • You must store trash in a container while on board and place it in a proper receptacle after returning to shore.
  • If boating on federal waters and your vessel is 26 feet or longer, you must display a Garbage Disposal Placard in a prominent location. The Garbage Disposal Placard is a durable sign that is at least 4 x 9 inches and notifies passengers and crew about discharge restrictions.

Garbage Disposal Placard

Garbage Disposal Placard

Discharge of Oil and Other Hazardous Substances

Regulations issued under the Federal Water Pollution Control Act require all vessels with propulsion machinery to have a capacity to retain oil mixtures on board.

  • You are not allowed to discharge oil or hazardous substances. The penalty for illegal discharge may be a fine of up to $10,000.
  • You are not allowed to dump oil into the bilge of the vessel without means for proper disposal. Fuel spills can be removed using absorbent bilge pads.
  • You must dispose of oil waste at an approved reception facility. On recreational vessels, a bucket or bailer is adequate for temporary storage prior to disposing the oil waste at an approved facility.
  • You must notify the U.S. Coast Guard immediately if your vessel discharges oil or hazardous substances in the water. Call toll-free 1-800-424-8802. Report the discharge’s location, color, source, substances, size, and time observed. You also must call the Indiana Department of Environmental Management and report the discharge.
  • If boating on federal waters and your vessel is 26 feet or longer, you must display a 5 x 8-inch placard made of durable material, fixed in a conspicuous place in the machinery spaces or at the bilge pump control station, stating the following:

Oil Discharge Placard

A 5 x 8-inch sign that states the law pertaining to oil discharge

Oil Discharge Prohibited placard

Waste Management Plan

  • Ocean-going vessels that are 40 feet or more in length with cooking and sleeping facilities must have a written Waste Management Plan.
  • The captain of the vessel is responsible for implementing the Waste Management Plan.
  • The Waste Management Plan, identifying the vessel's name and home port, should be posted and should include directives to all persons on board about:
    • Discharging sewage and hazardous substances
    • Discharging garbage and other food waste
    • Disposing of plastics, bottles, and cans
    • Reading applicable placards for additional information
    • Advising the captain in case of oily discharges or diesel spills

Prevent the spread of nuisance species in Indiana’s waters!

An increasing number of non-native aquatic plants and animals are invading the waters of Indiana. When moved into new waters, these species rapidly multiply, causing significant economic and ecological damage. Do your part to help prevent the spread of nuisance species.

  • Inspect your vessel, trailer, and equipment (motor, anchors, centerboards, rollers, axles) and remove any plants and animals.
  • Discard unused bait in the trash or leave it with someone fishing in the same waterbody.
  • Drain water from the motor, live well, bilge, and transom wells while on land and before leaving any waterbody.
  • Rinse vessel and equipment with tap water (preferably hot) or at a car wash.
  • Dry vessel and equipment in the sun for at least 5 days.
  • Learn how to identify aquatic nuisance species.

Introducing non-native species into Indiana waters can upset the balance of the ecosystem, hurting the environment. Common nuisance species are:

  • Eurasian Watermilfoil: A prolific aquatic plant found in lakes in Indiana. It interferes with boating and displaces native plants. It is easily spread when plant fragments are caught and moved on boat trailers, propellers, or anchors, or in wet wells. Plant fragments can initiate new plants and become well-established.
  • Zebra Mussel: A tiny D-shaped mollusk that can clog water intake pipes, damage vessel engines, and alter native species populations. Adult zebra mussels can attach to and be moved on vessel hulls, engines, and other equipment. Microscopic larvae can get trapped and moved in the water of vessel engines, bilges, bait buckets, and live wells.
Eurasian Milfoil Zebra Mussel

Eurasian Milfoil

Eurasian milfoil

Zebra Mussel

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