DUCK DOWN LLC HIN Decoder
Hull Identification Numbers beginning with DUC were assigned by the US Coast Guard to DUCK DOWN LLC of GREEN BAY, WI. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
DUC
Location
GREEN BAY, WI
In business
since 2016
Status
Listed active in USCG records
DUCK DOWN LLC hulls (2016–present) 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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DUCK DOWN LLC HIN FAQ
What does a DUCK DOWN LLC HIN look like?
It starts with the three characters "DUC" — the Manufacturer Identification Code the US Coast Guard assigned to DUCK DOWN LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DUCK DOWN LLC hulls (2016–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is DUCK DOWN LLC still in business?
USCG records list DUCK DOWN LLC of GREEN BAY, WI in the MIC database (registered 2016).
How do I decode the year on a DUCK DOWN LLC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DUCK DOWN LLC hulls (2016–present) 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 WI
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "DUCK DOWN LLC HIN Decoder," carwhere.com/hin-decoder/duc, last verified 2026-06-12.