What is the USCG -approved meaning of serviceable condition for PFDs?

In USCG regulations, a serviceable condition for a PFD means that it:

- Meets the requirements of the applicable approval series;

- Is in good and workable condition;

- Is not damaged, deteriorated, or defaced;

- Has not been branded, stamped, marked, or labeled with any non-standard marking or identification; and

- Has been inspected in the previous twelve months and any deficiencies have been corrected.