DUXBURY DORY WORKS HIN Decoder
Hull Identification Numbers beginning with DDW were assigned by the US Coast Guard to DUXBURY DORY WORKS of GREEN HARBOR, MA. The company is recorded as out of business since 1983 — 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
DDW
Location
GREEN HARBOR, MA
In business
since 1979
Status
Out of business (1983)
DUXBURY DORY WORKS hulls (1979–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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DUXBURY DORY WORKS HIN FAQ
What does a DUXBURY DORY WORKS HIN look like?
It starts with the three characters "DDW" — the Manufacturer Identification Code the US Coast Guard assigned to DUXBURY DORY WORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DUXBURY DORY WORKS hulls (1979–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is DUXBURY DORY WORKS still in business?
USCG records list DUXBURY DORY WORKS as out of business since 1983. 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 DUXBURY DORY WORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DUXBURY DORY WORKS hulls (1979–1983) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in MA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "DUXBURY DORY WORKS HIN Decoder," carwhere.com/hin-decoder/ddw, last verified 2026-06-12.