With the exception of the characters “US-”, which constitute the country of origin code for the United States, if information is displayed on the boat within 2 inches of the 12-character hull identification number (HIN), that information must be separated from the HIN by means of borders or must be on a separate label, so that it will not be interpreted as part of the hull identification number.
Code of Federal Regulations
[USCG-2003-14272, 69 FR 33860, June 17, 2004]