46 CFR §160.045-17

1. (a)Each throwable PFD must be marked in accordance with the recognized laboratory's listing and labeling requirements in accordance with § 160.045-3(a). At a minimum, all labels must include—
   1. (1)Size information, as appropriate;
   2. (2)The Coast Guard approval number;
   3. (3)Manufacturer's contact information;
   4. (4)Model name/number;
   5. (5)Lot number, manufacturer date; and
   6. (6)Any limitations or restrictions on approval or special instructions for use.
2. (b)Marking must be of a type that will be durable and legible for the expected life of the device.
3. (c)The Commandant may prescribe additional marking requirements for special purpose devices or unique or novel designs.