The date of manufacture is stamped into the collar of your portable propane tank. Generally, tank recertification needs to be done between 5 and 12 years based on the date of manufacture, and includes visual defects and other factors as well. Larger tanks may also need to be recertified, but through a different process. You don't need to know the ins and outs-because the AmeriGas experts will help you the next time you get your propane tanks filled!
Remember, when you exchange your old propane grill tank for a new AmeriGas propane grill tank at a certified AmeriGas retailer, you can be sure that the tank you're getting has already been recertified.