Find a requalifier
Your cylinder will need to be requalified once every five years via a visual inspection by an approved requalifier. This is in accordance with Department of Transportation regulations and ensures that your cylinder remains safe to use. All propane cylinders must periodically be inspected. Viking cylinders are the only composite cylinders that can be requalified by a simple visual inspection.
Your requalifier should inspect the cylinder and then apply a recertification sticker to the fiberglass dome using epoxy. There is no need for the inspector to replace the valve or pressure-test the cylinder.
The map below will help you find a certified requalifier in your area.