SHEARWATER BOATS HIN Decoder
Hull Identification Numbers beginning with IWT were assigned by the US Coast Guard to SHEARWATER BOATS of PHIPPSBURG, ME. 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
IWT
Location
PHIPPSBURG, ME
In business
since 1998
Status
Listed active in USCG records
SHEARWATER BOATS hulls (1998–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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SHEARWATER BOATS HIN FAQ
What does a SHEARWATER BOATS HIN look like?
It starts with the three characters "IWT" — the Manufacturer Identification Code the US Coast Guard assigned to SHEARWATER BOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SHEARWATER BOATS hulls (1998–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is SHEARWATER BOATS still in business?
USCG records list SHEARWATER BOATS of PHIPPSBURG, ME in the MIC database (registered 1998).
How do I decode the year on a SHEARWATER BOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SHEARWATER BOATS hulls (1998–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 ME
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "SHEARWATER BOATS HIN Decoder," carwhere.com/hin-decoder/iwt, last verified 2026-06-12.