PFDs/life jackets are often subjected to rough handling, ultra violet sunlight, and improper storage. These conditions reduce the ability of the PFD/life jacket to perform its intended function. The operator should be able to distinguish serviceable PFDs/life jackets and identify the key conditions that necessitate replacing the PFD/life jacket. Regular maintenance checks are essential to ensure the proper functioning of all PFDs/life jackets and especially the inflatable PFD/life jacket.