Every time it is worn!
Every time the PFD is worn
Every time the PFD is worn
Every time the PFD is worn
Every time the PFD is worn
Every time the PFD is worn.
Every time the PFD is worn
Every time the PFD is worn
According to the manufacturers instructions.
Inflatable Type V Personal Flotation Devices (PFDs) should be checked regularly, typically before each use, to ensure they are in good working condition. Additionally, it is recommended to inspect the PFD at least once a month and after any significant exposure to moisture or impact. Manufacturers often provide specific guidelines, so it's important to follow those instructions for maintenance and checks. Regular inspections help ensure reliability in case of emergency.
Inflatable PFD
We do not know what you mean by "PFD", please do not use abbreviations. But the answer would be when the instructions for the "PFD" say it needs to be replaced.
Every time the PFD is worn