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Manual - Boat Pollution Laws

Boat Pollution Laws in Canada

All aspects of owning and operating a boat are subject to environmental laws and regulations. Canada has strict rules regarding pollution linked with recreational boating. The Oceans Act protects marine environments, including inland waters (a surface area of approximately 2.5 million square kilometres). Other sets of laws protect areas of freshwater, such as the Species at Risk Act.

Key takeaways

  • Recreational boaters are required to follow all applicable environmental laws at all times, at both the federal and provincial level.
  • Canada has federal laws protecting waterways from invasive species, including the Aquatic Invasive Species Regulations and the Species at Risk Act
  • Canada has provincial laws to protect marine environments, including mandatory inspection stations, drain plug removal, decontamination requirements, permits and other rules specific to national parks
  • Canadian boaters are subject to general pollution laws including regulations affecting greywater disposal, sewage (black water) disposal, oil and fuel pollution, bilgewater disposal, litter and garbage disposal while boating, air pollution laws for recreational boating and noise pollution laws for motorized boats on Canadian waterways
  • Some anti-pollution laws are specific to Canada’s national parks

Table of contents

Canada’s waterways and marine environments must be protected against pollution

The need to protect marine species and local ecosystems has resulted in a rising number of environmentally motivated boating rules in Canada. These laws and regulations have been put in place to protect Canada’s waterways so that they remain healthy and usable by all.

Preventing the spread of invasive species (AIS) while boating

Waterways in Canada are currently at risk due to invasive species of aquatic plants, fish and invertebrates originating from other parts of the world. These species can be introduced accidentally or intentionally, by boaters who do not correctly clean and maintain their boats before introducing them to Canadian waters.

Invasive species can harm native fish and other wildlife, as well as individual habitats and entire ecosystems. Recreational boats and watercraft, including fishing equipment, can all be carriers of these threats.

Canada has specific laws and regulations in place to protect against the spread of aquatic invasive species (AIS). These laws directly impact boaters. Some laws are enforced at the federal level, and others at the provincial level.

Federal legislation to protect marine environments: Aquatic Invasive Species Regulations


The primary federal legislation is the Aquatic Invasive Species Regulations, under the Fisheries Act, managed by Fisheries and Oceans Canada (DFO).

Here are the main points as they affect Canadian boaters:

Prohibition on the introduction and spread of invasive species


It is generally illegal to introduce an aquatic species into a body of water where it is not native, unless specifically authorized. This means you cannot move live fish or other aquatic organisms from one body of water to another, including creatures or plants that could cling to and be transported by your boat hull.

Prohibited species according to area


Since May 29, 2015, specific prohibited aquatic invasive species cannot be imported, possessed, transported, or released in certain geographical areas of Canada. Over 160 species are listed in the schedule of the regulations, including Silver Carp, Round Goby and Sea Lamprey. There are specific local regulations that apply to Ontario and Manitoba.

Federal legislation to protect endangered marine species: the Species at Risk Act


SARA is a Canadian law designed to prevent wildlife species from becoming extinct or extirpated (no longer existing in the wild in Canada), and to help in the recovery of endangered or threatened species. SARA applies to all federal lands in Canada.

Possible boating restrictions, as outlined in the Species at Risk Act (SARA) include:

  • limits on boat speed
  • limits on boating activity (keeping a distance from protected areas)
  • prohibitions against the use of motorized vessels
  • prohibitions against killing, harassing, capturing or harming species at risk
  • prohibitions against destroying critical habitats
The Government of Canada has provided a complete list of aquatic species at risk.

Canadian provincial and territorial regulations to protect marine environments


Many provinces and territories have their own specific legislation and regulations that complement the federal laws, often with more detailed requirements for boaters within their jurisdictions.

These can include:

Mandatory Inspection Stations


Provinces like Manitoba, Saskatchewan, Alberta, and British Columbia have mandatory watercraft inspection stations. If you are transporting a watercraft, you are legally required to stop at these stations when they are open. Failure to stop can result in fines of up to $345 and even the seizure of your vessel. Provinces are increasing the number of inspection stations and patrols to ensure compliance, demonstrating the importance of stopping at open stations.

Drain Plug Removal


In several provinces (including Manitoba, Alberta and Saskatchewan), it is a legal requirement to have your drain plug removed when moving a watercraft over land.

Decontamination Requirements


In some cases, if a watercraft is suspected of carrying AIS, it may be subject to quarantine or mandatory decontamination by authorized personnel.

Specific prohibited species


Provincial acts may list additional species as prohibited or restricted within their borders.

Recreational boating: pollutant disposal laws in Canada

If you own or operate a boat you are responsible for managing the pollutants present on that vessel, and their disposal, according to the Vessel Pollution and Dangerous Chemical Regulations.

The following points are critical for safe, responsible boating:

Greywater disposal rules


Greywater includes drainage from sinks and kitchens, and also laundries (on larger boats). Legally, no discharge should include solid matter or cause any sheen on the water. In most cases, recreational vessel owners should dispose of their greywater when on land, far from the shore.

Sewage (black water) disposal laws


It is illegal to dump sewage into Canada’s waterways, as it poses a risk to swimmers (via bacterial infections) and to the environment.

Raw, untreated sewage, known as black water, is the product of marine toilets. Your toilet must be fitted with a holding tank so black water can be stored and later disposed of at a pump-out station. Dual systems with “Y” valves that allow waste to be discharged from the boat are illegal.

Portable toilets are permitted onboard as long as they are firmly attached to the vessel and have a built-in mechanism for emptying at an authorized facility. For longer journeys, use onshore facilities whenever feasible.

Oil and fuel pollution rules in Canada


It is illegal to pollute Canadian bodies of water with oil and fuel. Minor oil spills resulting from running motors and refueling contain petroleum hydrocarbons that typically bind to sediments in the water. These substances endure in aquatic environments and pose a threat to benthic organisms, which form the foundation of the marine food web.

Always use caution when refuelling, as you can put both yourself and the environment at risk if you are not careful. Never let fuel spill into the water; to avoid mistakes, refuel on land, far from shore.

If an oil or fuel spill is the result of an accident, you must also report the accident appropriately.

Bilgewater disposal


If your bilgewater is perfectly clean, you can dump it into the water. If it contains oil, fuel, grease or chemicals, you are prohibited from dumping it overboard. Check your bilge regularly to confirm that it is clean, and if not, use an environmentally-friendly absorbent product to soak it up. Any leakage of contaminated bilge must be reported to government authorities.

Litter and garbage disposal while boating


You are not allowed to dump litter and garbage overboard. Take care not to capsize your boat, and minimize the risk of causing pollution by keeping litter, garbage and other materials secure when under way. "Leave No Trace" principles are strongly enforced.

Air pollution laws for recreational boating


Exhaust emissions from vessels contain sulphur oxides, nitrogen oxides and particulate matter. Research by Health Canada and Environment Canada has concluded that these pollutants adversely affect human health and the environment, and new laws could be forthcoming.

For now, be mindful of your impact when you choose to use a motorized boat for recreational boating activities. Use fresh, quality fuel for your boat or PWC and keep your fuel tank clean. This will also help minimize your carbon footprint.

To confirm that your vessel is in good operation condition, you can always schedule a free Pleasure Craft Courtesy Check.

Noise pollution laws for motorized boats on Canadian waterways


Canadian laws prohibit pleasure craft from operating within 5 nautical miles (9.26 km) of shore unless they are fitted with an appropriate muffler. This does not include noise muffling via cooling water discharged through the exhaust pipe (wet exhaust). The Canadian Coast Guard is currently reviewing the laws surrounding noise pollution from small vessels, and you can review the important issues on the Government of Canada website.

Remember that noise travels faster on water than on land. Avoid circling a motorized boat in the same area for long periods, and play music at a reasonable volume.

Pollution laws in Canada’s National Parks

Many Canadian national parks have outright prohibitions or significant restrictions on the use of gasoline-powered motors to reduce noise pollution, fuel emissions, and the risk of spills. While often more permitted than gas motors, the use of electric motors is usually restricted to specific lakes or waterbodies within a park. Always check the park's specific regulations.

In some national parks, you may need an Aquatic Invasive Species (AIS) Prevention Permit for certain watercraft or gear. Yoho and Kootenay national parks have closed completely to boating and fishing until 2026, and some other parks do not allow watercraft from outside the park to launch on local waterways.

Boaters are expected to avoid disturbing wildlife. Excessive noise or approaching animals too closely can be considered an offense. There might also be restrictions on where you can anchor within national parks to protect sensitive aquatic habitats. Noise pollutions rules also generally apply.

Contravention of Parks Canada regulations can result in significant fines, eviction from the park, or even arrest. Fines for serious offenses like pollution can exceed $250,000.

What recreational boaters can do to follow Canadian pollution laws and regulations

Boat pollution rules will vary according to location. Always respect local signage and if in doubt, consult your local marine authority to find out how to obey local laws.

In general, clean boating on Canadian waters involves the following:

  • Always “Clean, Drain, and Dry” your boat, trailer and equipment thoroughly before putting them in the water.
  • When fishing, take care to keep empty bait buckets far from shore, and never release live bait from one body of water to another.
  • Drain water from your boat’s motor, live well and bilge or transom wells far from any waterway (on land).
  • When cleaning your vessel, remove plants or species that you can see, and wash surfaces with hot tap water (at least 40 degrees C) or spray them with water at a high pressure (250 psi).
  • Always consult local provincial fishing regulations, and be sure to report any sightings of invasive species.
  • Be aware of and comply with provincial inspection station requirements when travelling with your boat.

The National Boating Safety School safe boating course will prepare you to obtain your Pleasure Craft Operator Card

The National Boating Safety School offers a Transport Canada approved boating safety course that will prepare you for the official online boating exam. Once you pass the test, you will be awarded your lifetime Pleasure Craft Operator Card. Register today!

Frequently Asked Questions

1. Which environmental protection laws must boaters follow?

No matter where you are boating in Canada, you must follow the federal laws. Provincial laws may differ depending on which province or territory is affected, and boaters remain responsible for consulting local regulatory bodies for details.

2. Who enforces the Aquatic Invasive Species Regulations?

These regulations are enforced by fishery officers and guardians, and Parks Canada wardens.

3. Who enforces provincial and territorial invasive species regulations?

Conservation officers have the authority to enforce provincial AIS legislation. (e.g., Conservation Officers in Ontario, Fish and Wildlife Officers in Alberta, Enforcement Officers in Manitoba)

4. What is the ``Clean, Drain, Dry`` principle?

This is a quick way to remember what you can do to keep your boat from becoming a carrier of invasive species. It involves three steps:

  1. Clean: Inspect and remove all aquatic plants, animals, and mud from your boat's hull, motor, anchor, trailer, fishing lines, diving gear, and any other equipment before entering and after exiting a body of water.
  2. Drain: Drain water from your motor, bilge, live wells, and any other water-holding compartments on land and away from the water.
  3. Dry: Dry all equipment completely before entering another water body.

5. Do I have to report spills that occur while boating?

Yes, any discharge of a pollutant from your vessel, or the probability of a discharge, that is prohibited by the Canada Shipping Act, 2001, must be reported to government authorities.

6. What can I NOT discharge into Canadian waters?

When boating on Canadian waters, NO sewage (black water), no oil, no fuel, no garbage (including food scraps, fishing line, cigarette butts), and no hazardous chemicals (like toxic cleaning products, paint, antifreeze) can be discharged into the water. Even biodegradable cleaners should be used sparingly and away from the water.

7. Are ``Y`` valves illegal?

Yes, dual systems with "Y" valves that allow waste to be discharged directly into the water are illegal and must be retrofitted.

8. Where can I empty my holding tank?

You must dispose of sewage at an approved pump-out station on land.

9. Are portable toilets legal for use on a boat?

Portable toilets are legal only if they are securely fastened to the craft and have a permanent fixture enabling them to be emptied at an approved pump-out facility on shore.

10. How do I prevent oil and fuel spills?

  • Be cautious when refueling; don't top off the tank.
  • Use absorbent pads (bilge cloths) in your bilge to soak up oil, fuel, or transmission fluid.
  • Regularly check your bilge to make sure it's clean.

11. Do I need a muffler on my boat?

Pleasure craft with motors other than stock (unmodified) outboard engines must have a muffler and use it when operating within 5 nautical miles (9.26 km) of the shore. "Wet exhaust" is not considered a muffling device.

12. Does my wake damage the environment?

Your wake can damage other vessels, docks, and the shoreline, leading to erosion. You can avoid casing damage with your wake and wash by driving responsibly and using appropriate equipment. In many areas, there are speed limits (e.g., 10 km/h) within 30 meters of the shore to minimize wake and protect people in the water.

13. What can I do to be a more eco-friendly boater?

In addition to following the laws and regulations described above, you can:

  • Minimize plastic usage (e.g., reusable bottles, bags)
  • Practice better fuel management
  • Explore hybrid or electric motor options
  • Properly maintain fishing gear to avoid loss
  • Report pollution sightings

Sources

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