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Who Pays for
an Oil Spill

Surrounded by busy waterways, Canadians inevitably have questions about who pays for the costs associated with a ship-source oil spill into water.

For example, if a spill were to happen tomorrow – would Canadians have to pay for it?

How much money is available to clean up a spill?

This site’s purpose is to share objective information about who pays for the costs of cleaning up a ship-source oil spill in Canadian waters and to encourage informed conversations about marine shipping in Canada.

This site was created by Clear Seas, an independent research centre that supports safe and sustainable marine shipping in Canada.

Tanker Cargo Spills in Canadian Waters

While some risk is inherent in the transportation of oil, thanks to increased preventive measures such as mandatory double hulls for ships carrying oil as cargo and local marine pilots to guide ships in Canadian coastal waters, the volume and frequency of oil spills has been decreasing in Canada and globally since the 1970s[1].

Although a spill is unlikely to occur, in order to operate in Canadian waters, tankers must always[2]:

  • Contribute funds to and have a contract with one of Canada’s four certified response organizations.
  • Carry enough insurance to cover their liability in the unlikely event of a spill.

The amount which a tanker owner is liable to pay depends on the size of the tanker and how much oil it can carry.[3]

The amount of insurance required for ships smaller than 5,000 gross tonnes.

Ships larger than 5,000 gross tonnes and smaller than 140,000 gross tonnes require an additional $1,147 CDN of insurance per gross tonne above 5,000.

The amount of insurance required for ships larger than 140,000 gross tonnes.


If an oil tanker spills its cargo in Canadian waters, four sources of funding are available. Changes made to the Ship Fund in December 2018 removed the per-incident limit of liability; there is effectively no limit to compensation available from the Ship Fund.


Under the International Convention on Civil Liability for Bunker Oil Pollution Damage (Bunkers Convention), all ships above 1,000 gross tonnes must have insurance for damage resulting from a fuel spill. The amount a shipowner is liable to pay depends on the size of the ship.

The amount of insurance required for ships larger than 300 gross tonnes and smaller than 2,000 gross tonnes.

Ships larger than 2,000 gross tonnes and smaller than 30,000 gross tonnes require an additional $1,098 CDN of insurance per gross tonne above 2,000.

Ships larger than 30,000 gross tonnes and smaller than 70,000 gross tonnes require an additional $824 CDN of insurance per gross tonne above 30,000.

Ships larger than 70,000 gross tonnes require an additional $549 CDN of insurance per gross tonne.


Ship and Rail Compensation Canada – Ship Fund

The Ship and Rail Compensation Canada – Ship Fund is Canada’s domestic oil spill fund to ensure claims for oil pollution damage in Canadian waters are paid. Spills can be caused by the discharge of oil from any type of vessel or be of unknown origin (often called mystery spills).[8]

Funded by levies collected from oil cargo companies in the 1970s and with an accumulated surplus of over $408 million in 2019, the Ship Fund can provide unlimited compensation for oil pollution damage caused by any type of oil spill from any type of vessel. In the case of persistent oil spilled from a tanker’s cargo or ship’s fuel tanks, the Ship Fund provides additional compensation if international funds are exhausted.

The Ship Fund is a special purpose Government of Canada account, established under Part 7 of the Marine Liability Act to protect taxpayers while facilitating the payment of claims from ship-source oil pollution in Canadian waters. Amendments in 2018 to the Marine Liability Act improved the Ship Fund.

The Ship Fund has:

  • An unlimited per-occurrence limit of liability;
  • The authorization to temporarily transfer funds from the Consolidated Revenue Fund if the Ship Fund is depleted;
  • Alignment with international conventions for claims for economic losses (notably lost revenue) caused by oil pollution;
  • Liability for the costs and expenses incurred by the Minister of Fisheries and Oceans or any other person for measures to prevent oil pollution damage even without a grave and imminent threat of a spill;
  • Provision of up-front emergency funding to the Minister of Fisheries and Oceans for significant oil pollution incidents.

The Ship Fund is both a fund of the last resort and of the first resort, at the choice of the claimant.

At last resort, the Ship Fund compensates victims of oil pollution damage when they have been unable to obtain full compensation for damage from the shipowner or any other party through Court action or settlement.

At first resort, any person – including the Crown – may file claims directly with the Ship Fund, which will investigate and assess the claim, make the claimant an offer of compensation, and, once accepted, seek to recover the amount paid from the polluter or other responsible party.

The majority of claims submitted to the Ship Fund are in response to wrecked, derelict or abandoned vessels that pose a threat of oil pollution to Canada’s coastlines. For example, between 2005 and 2016, the number of incidents involving wrecked, derelict or abandoned vessels resulting in claims totalled 58% of the incidents for which the Ship Fund received claims[9]. Fishing boats generate a larger number of claims than any other type of vessel, but tugs and barges are responsible for higher monetary value claims.[10]

Under the Ship Fund “last resort” model, claims for compensation can be submitted for any kind of reasonable loss, damage, costs or expenses, including economic losses, caused by oil pollution, if:

  • The shipowner does not or cannot pay;
  • The shipowner is not liable under the Civil Liability Convention or Bunkers Convention;
  • The International Fund and Supplementary Fund are not liable or the claim exceeds their limits;
  • The Ship Fund Administrator is considered a party to proceedings against a shipowner;
  • The cause of the oil pollution is unknown (mystery spill).

Under the Ship Fund “first resort” model, none of these restrictions apply: claims for compensation are submitted directly with the Administrator, who assesses and pays the claim and then pursues the shipowner, the International Funds, or any other liable party as is deemed reasonable.

Claims for compensation can also be submitted to the Ship Fund for costs and expenses incurred by the Minister of Fisheries and Oceans or others taking action to prevent an oil spill, even when the threat of oil pollution damage is later determined not to be grave and imminent. Actions to respond to grave and imminent threats of pollution are eligible under the International Fund or the Supplementary Fund.

Anyone involved in responding to an oil spill or the threat of an oil spill, or anyone who suffers damages as a result of an oil spill, can make a claim to the Ship Fund for compensation.

The Ship Fund is available for claims of all sizes with a simplified process for claims up to $35,000.

These incidents were a result of spills and leaks from a variety of vessel types, most of which were abandoned and derelict, including fishing boats, cruise ships, pleasure craft, ferries, tug boats, commercial ships and barges as well as mystery spills.


Clear Seas is a Canadian not-for-profit organization that provides independent fact-based information to enable governments, industry, and the public to make informed decisions on marine shipping issues. We work to build awareness and trust so that all people can feel a part of the marine sector. Our vision is a sustainable marine shipping sector that is safe, vibrant, and inclusive, both now and for future generations.

As an independent research centre, Clear Seas operates at arm’s length from our funders. Our research agenda is defined internally in response to current issues, reviewed by our research advisory committee, and approved by our board of directors.

Our board of directors is composed of mariners, scientists, community leaders, engineers and industry executives with decades of experience investigating human, environmental and economic issues related to our oceans, coastlines and waterways.

Our reports and findings are available to the public at clearseas.org