Master the Propane Game 2026 – Let's Dispense Safety in Alabama!

Cylinders must be requalified at regular intervals to guarantee they can safely contain pressure. The date stamped on the cylinder shows when it was last requalified, and the letter that sometimes follows that date identifies the specific requalification interval or method. When there is no letter after the date, the default requirement is that requalification must occur within 12 years of that stamped date. This means you should plan to have the cylinder requalified by the end of the 12th year from the stamped date, regardless of any other markings. For example, a cylinder stamped with a date in May 2018 and no following letter would need requalification by May 2030. After requalification, the cylinder is stamped again with the new date and appropriate markings. Always verify against current regulations or the cylinder manufacturer if in doubt.