Oil Tanks in Newfoundland and Labrador: What Buyers and Sellers Need to Know

The rules

Home heating oil tanks of 2,500 litres or less are covered by the province’s Heating Oil Storage Tank System Regulations, often called the HOST regulations, which are run by the Department of Environment and Climate Change.

• Registration is required. A licensed inspector inspects and registers the tank before it can be used. Anyone can install a tank, but it can’t be filled until a licensed inspector has registered it. The province publishes a list of licensed inspectors.
• The tag. A registered tank has a numbered brass tag riveted to the vent pipe, stamped with the month and year by which it must be replaced. A tag stamped 7-2028, for example, means the tank can’t be used after July 31, 2028. The owner also gets a certificate of registration.
• No tag, no oil. It’s illegal to deliver oil to a tank without a valid, current tag. A tank whose age can’t be determined can’t be registered at all.

How long a tank can last

The replacement date depends on the tank’s type, its steel thickness (gauge), where the outlet is, and whether it’s indoors or outdoors. For common single-wall steel tanks:

Double-bottom tanks get 5 to 10 years more. Fibreglass tanks and tanks with monitored secondary containment can be registered for up to 50 years.

• New single-wall steel tanks can’t go outside. Since July 2015, a new single-wall steel tank can’t be registered outdoors. An existing registered one can stay until its replacement date, but it can’t be moved to another outdoor spot.
• The date isn’t a guarantee. If a tank shows real deterioration before its replacement date, it must be taken out of service and replaced.

Buying a home with an oil tank

1. Find the tag on the vent pipe, and note the six-digit number and the stamped date. A tank close to its date will need replacing soon, and that’s worth factoring into your offer.
2. Confirm the registration. Email PetroleumStorage@gov.nl.ca with the tag number, the stamped date and the civic address. They may ask for photos of the tag, the tank’s label and the tank. It’s free, and takes at least three working days, so ask early in your conditions period. See the province’s confirmation of registration page.
3. Ask the seller for the certificate of registration and check it matches the tag.
4. Look at the setup. Red flags include a tank sitting on a wooden floor, cracked patio stones under an outdoor tank, no protection where a car could hit it, or an indoor filter with nothing underneath to catch drips. Your home inspector can look too.
5. Ask about underground tanks and past leaks. Old underground tanks and buried lines are supposed to have been dug up when they were taken out of service.
6. Call your insurer before your conditions come off. Ask what they need to see, whether the tank’s age or type affects your policy, and what’s covered if oil spills.

At closing, you’ll usually pay the seller back for the oil left in the tank. Your lawyer handles that adjustment.

Selling a home with an oil tank

• Have the details ready: the tag number and date, and the certificate of registration if you have it. Buyers and their insurers will ask, so having them ready saves days in the conditions period.
• Check the date. If the replacement date is close, expect buyers to raise it. Replacing the tank before listing, or pricing it in, are both options.
• Lost tag or certificate? Email the department. A missing or unreadable tag should be reported.

Removing or replacing a tank

• Removal deadline. Once a tank is disconnected from the furnace, it must be emptied, cleaned out and removed within 30 days, and the area cleaned up.
• Underground tanks must be dug up. Leaving one in the ground needs the department’s approval.
• A new tank must be inspected and registered by a licensed inspector before it’s used.

If a tank leaks

If you think oil has leaked or water is getting into the tank, you’re required to report it immediately to the department and your oil company. Call the 24-hour Environmental Emergency line at 1-800-563-9089.

• Stop the leak and empty the tank.
• Remove the tank within 10 days.
• Clean up the affected area within 30 days.

Spill cleanups can be expensive, which is why insurers pay close attention to oil tanks.

Oil tanks and home insurance

According to the Insurance Bureau of Canada:

• If an indoor tank leaks and damages your home, most policies cover that damage.
• If oil moves onto a neighbour’s land, that’s typically covered under the liability part of your policy.
• Coverage for an outdoor spill that stays on your own property is optional with some insurers.

Policies differ, so ask your insurer exactly what yours covers and what they need to know about your tank.

Switching from oil to electric heat

The Oil to Electric Incentive Program from takeCHARGE (Newfoundland Power and NL Hydro) helps homeowners switch from oil. Programs like this change and can close when funding runs out, so check takeCHARGE for what’s available now. As of 2026, the maximum rebates were:

Income-qualified limits depend on household size, for example $73,600 adjusted net income for a two-person household.

• Eligibility. The home has to be your year-round primary residence and mainly heated with oil, and you need oil statements showing at least 500 litres over 12 months.
• Recent buyers without that history should contact their utility first.
• Tank removal is an eligible cost. Photograph the tank’s tag before it goes.

In Newfoundland and Labrador, federal Oil to Heat Pump Affordability funding is delivered through Oil to Electric, so you apply to takeCHARGE rather than to the federal government. For other heat pump rebates and financing, see our heat pump rebates guide.