Do propane tanks expire in Canada?
Yes. According to the Canadian Propane Association's cylinder marking fact sheet, a cylinder must be requalified or replaced ten years after its manufacture date. Requalification may happen several times over a cylinder's life, so a collar may show more than one requalification date. The sheet also states that it is against the law to fill an expired or damaged cylinder.
This is why a refill station may turn you away or an exchange program may swap your old cylinder for another. It is not a sales tactic. It is a safety rule.
How do I read the date stamp on my cylinder?
Cylinders are stamped on the collar (the ring around the valve) or on the shoulder.
| What you see | What it means (per the Canadian Propane Association) |
|---|---|
| 04 10 or 04Δ10 | Manufacture date: the first number is the month and the second is the year, so April 2010. A symbol may separate the two. |
| 05 PD3 13 E | Requalification stamp: May (05), the requalifier's registered mark (PD3), year 2013 (13), and the procedure symbol E for external visual inspection. |
| Several stamps | The cylinder has been requalified more than once. Read the latest one. |
Worked example: a cylinder stamped 04 10 would reach ten years in April 2020. If it has no valid requalification stamp after that, it cannot be filled until it is requalified. If it has a requalification stamp, ask the requalifier or your propane dealer how long that stamp is valid.
What should I do if my cylinder is expired?
- Do not try to refill it or ask someone else to. A reputable propane provider will refuse.
- Decide whether to requalify or replace. Replacement is often simpler for small cylinders. Compare the cost of requalification with the cost of a replacement.
- Use a registered requalifier. The CPA sheet says only a registered cylinder requalifier can do it, and Transport Canada maintains a searchable list of requalifiers. When arranging the work, ask for the External Visual method for propane cylinders.
- Ask your propane dealer if they requalify cylinders or can send them out.
- Dispose of cylinders properly through a propane dealer or your municipality's program. Do not put them in household garbage or recycling bins.
Is it better to exchange or refill?
| Option | What to know |
|---|---|
| Exchange | You hand in your cylinder and receive a filled one. The exchanged cylinder has to be in date, so exchanges avoid requalification. Prices and fill levels vary by program. Ask what the fill level is. |
| Refill | You keep your own cylinder. The station checks the date, inspects for damage and fills by weight or volume. Cylinders that are out of date or damaged will be refused. |
Whichever you use, a good filler will check the date stamp, look for rust, dents and a damaged valve, and fill to the correct level without overfilling. Ask if you are unsure.
What should I inspect before every fill?
- Date stamp: manufacture date within ten years, or a valid requalification stamp.
- Body: no deep rust, dents, gouges or bulges.
- Collar and foot ring: not bent or corroded.
- Valve and threads: no damage, no leaks, protective cap in place.
- Paint or labels: not peeling away heavily or hiding the stamp.
- Mounting: secure, upright, vented and away from ignition sources.
If you find a problem, do not use the cylinder until a professional has inspected it. See our propane system basics and regulator guide.
What about the tanks built into my motorhome or trailer?
Permanently mounted tanks, often called ASME or DOT tanks depending on the type, are not the same as portable cylinders, and the sources we used for this guide cover portable cylinders. Rules for inspecting and filling fixed tanks depend on the type of tank and the province. Ask a licensed propane supplier, check your RV's manual, and see our guide to RV propane regulations in Canada.
Propane when you travel: ferries, borders and tunnels
Ferries, tunnels and border crossings may have propane rules, including shutting off the supply while on board. See RV ferry rules and crossing the border with an RV. Plan fill locations on your route using our route planning guide.
Common questions
How long is a propane tank good for in Canada?
Ten years from its manufacture date, then it must be requalified or replaced, according to the Canadian Propane Association.
Can I fill an expired propane tank?
No. It is against the law to fill an expired or damaged cylinder.
Where do I find the date on a propane tank?
On the collar or shoulder. A stamp like 04 10 means April 2010. A stamp like 05 PD3 13 E is a requalification (May 2013, external visual).
Who can requalify a cylinder?
Only a registered cylinder requalifier. Transport Canada keeps a searchable list.
Is it cheaper to requalify or replace?
It depends on the size and type of cylinder and local prices. Get quotes.
Do 20-lb barbecue cylinders follow the same rule?
The CPA sheet applies to propane cylinders in general. Check the sheet and ask your dealer about the cylinder you have.
Do exchange cylinders expire?
Exchange cylinders have the same date rules. Exchange programs remove expired cylinders from circulation.
Official resources
Check each page for the current rules, prices and dates. Rules and provider terms change.
- Canadian Propane Association: propane cylinder markings fact sheet (PDF)
- Canadian Propane Association
Related RV Resources Canada guides
- RV propane system basics
- RV propane regulators
- RV propane leak response
- RV propane regulations in Canada
- How to use RV propane
- RV carbon monoxide safety
Last checked: October 26, 2026. This is general information, not legal, financial or professional advice. Confirm current requirements with the organization named before you act.