CONSTELLATION CUSTOM TENDERS HIN Decoder
Hull Identification Numbers beginning with COS were assigned by the US Coast Guard to CONSTELLATION CUSTOM TENDERS of BRISTOL, RI. The company is recorded as out of business since 2019 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
COS
Location
BRISTOL, RI
In business
since 2014
Status
Out of business (2019)
Parent company
G H FUN LLC
CONSTELLATION CUSTOM TENDERS hulls (2014–2019) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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CONSTELLATION CUSTOM TENDERS HIN FAQ
What does a CONSTELLATION CUSTOM TENDERS HIN look like?
It starts with the three characters "COS" — the Manufacturer Identification Code the US Coast Guard assigned to CONSTELLATION CUSTOM TENDERS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. CONSTELLATION CUSTOM TENDERS hulls (2014–2019) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is CONSTELLATION CUSTOM TENDERS still in business?
USCG records list CONSTELLATION CUSTOM TENDERS as out of business since 2019 (associated with G H FUN LLC). That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a CONSTELLATION CUSTOM TENDERS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. CONSTELLATION CUSTOM TENDERS hulls (2014–2019) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in RI
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "CONSTELLATION CUSTOM TENDERS HIN Decoder," carwhere.com/hin-decoder/cos, last verified 2026-06-12.