NEWPORT SHIPYARD HIN Decoder
Hull Identification Numbers beginning with NWO were assigned by the US Coast Guard to NEWPORT SHIPYARD of NEWPORT, 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
NWO
Location
NEWPORT, RI
In business
since 1983
Status
Out of business (2019)
Parent company
AMERICAN SHIPYARD CO.
NEWPORT SHIPYARD built hulls across both HIN eras (1983–2019): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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NEWPORT SHIPYARD HIN FAQ
What does a NEWPORT SHIPYARD HIN look like?
It starts with the three characters "NWO" — the Manufacturer Identification Code the US Coast Guard assigned to NEWPORT SHIPYARD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. NEWPORT SHIPYARD built hulls across both HIN eras (1983–2019): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Is NEWPORT SHIPYARD still in business?
USCG records list NEWPORT SHIPYARD as out of business since 2019 (associated with AMERICAN SHIPYARD CO.). 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 NEWPORT SHIPYARD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. NEWPORT SHIPYARD built hulls across both HIN eras (1983–2019): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three. 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, "NEWPORT SHIPYARD HIN Decoder," carwhere.com/hin-decoder/nwo, last verified 2026-06-12.