Where are some places an individual can go to get a fully functional, but expired, propane cylinder certified?

First...Let's clear up some misconceptions...

The date stamped on a cylinder is for filling purposes, not consumption. When an attendant fills a cylinder they are required to check this date and not fill a cylinder that has a test date older than 10 years. This is because we cannot guarantee that the pressure relief valve will function in an overpressure condition if it has been in service longer than this. This allows for corrosion, wear and tear and abuse of the cylinder over a 10 year span. When a cylinder is out of date it can be taken to a retest facility, (usually any of the propane companies that deliver cylinders or bulk fuel) and be requalified. The cylinder is visually inspected for defects and if it passes, a new service valve will be installed and the cylinder restamped. It is then good for another 10 years.

Usually it is not cost effective to have this done on a 20lb cylinder. This is because there are so many "exchange" retailers where you can trade it for a good one. You might have to pay a small extra fee because yours is out of date.

For any other size cylinder it makes sense because the cost of a new one is often more than the cost of requalifying. If you have a special 20lb cylinder or an emotional attachment to that one, you can certainly have it requalified and keep it. But it is cheaper to just exchange it.

Hope this helps!

I am not sure about US but in the UK all cylinders are the property of the gas company and have to be returned to them for refilling and it would be down to them to recertify or scrap the cylinder but they would replace the cylinder with a full one for the cost of the gas fill as normal.

It's against Federal Law to use the tanks past their expiration date. It is for your own safety. Spend the bucks and get a new one. You cannot get it "recertified".

try a local propane comapany........ they should be able to assist you on this