What is the USCG-approved meaning of "serviceable condition" for life jackets?

The term "serviceable condition" for life jackets as defined by the U.S. Coast Guard primarily means that the life jackets must be in proper working order, which includes ensuring that all straps and zippers function correctly. A life jacket that is in serviceable condition should not only be intact but also capable of being adjusted and secured properly when worn. This aspect is crucial for the effectiveness of the life jacket in an emergency situation, as a life jacket that cannot be securely fastened or properly adjusted may not provide adequate buoyancy or safety.

While bright colors are important for visibility in the water, they do not alone determine the jacket's serviceability. Similarly, although stains can be a concern for assessing the cleanliness or maintenance of the life jacket, they do not necessarily reflect its functional integrity. The flotation rating is also important but focuses on the buoyancy capability rather than whether the jacket is operable. Hence, ensuring that straps and zippers are functional is the key indicator of a life jacket being in a "serviceable condition."