Hello there, I'm a specialist in the field of propane and gas safety regulations. It's important to understand that propane tanks, also known as LPG (liquefied petroleum gas) cylinders, have a specific lifespan and re-certification schedule to ensure their safety and functionality.

Propane tanks are designed to be durable and safe for use in a variety of applications, from residential heating to outdoor grilling. However, due to the nature of their use and the materials they are made from, they require periodic inspection and re-certification to maintain their integrity and safety.

The lifespan of a propane tank can vary depending on several factors, including the type of tank, how it's used, and the conditions in which it's stored. For household propane tanks, the general rule is that they need to be re-certified every 12 years from the date of manufacture. This re-certification process involves a thorough inspection to ensure that the tank is still safe for use.

During the re-certification, an inspector will check for any signs of corrosion, damage, or other issues that could compromise the tank's safety. If the tank passes this inspection, it will be stamped with a new date, indicating that it has been re-certified and is safe to use for another period.

It's important to note that the re-certification process does not automatically extend the life of the tank indefinitely. Instead, it provides an additional period of safety, typically another 5 years, after which the tank will need to be re-certified again. This cycle continues until the tank is deemed unfit for use and must be retired.

In addition to the re-certification schedule, it's also crucial to handle and store propane tanks properly. This includes keeping them upright, protecting them from extreme temperatures, and avoiding any physical damage. Proper maintenance and care can significantly extend the useful life of a propane tank.

For commercial use, the regulations might differ and it's always best to consult with local authorities or a professional to ensure compliance with all safety standards and regulations.

In summary, a propane tank is generally good for a period of 12 years from the date of manufacture before it needs to be re-certified. The re-certification process can then extend its life for another 5 years, and this cycle continues until the tank is no longer deemed safe for use.

read more >>

There is also a month and year on the collar indicating the date the tank was made. For 20 lb propane tanks, you have 12 years from the manufacture date before the tank must be re-certified with a new date stamped on it. The re-certification only adds 5 years before having to re-certify again.read more >>