INTERMARINE HIN Decoder
Hull Identification Numbers beginning with NTR were assigned by the US Coast Guard to INTERMARINE of SARZANA. 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
NTR
Location
SARZANA
In business
since 1973
Status
Listed active in USCG records
INTERMARINE built hulls across both HIN eras (1973–present): 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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INTERMARINE HIN FAQ
What does a INTERMARINE HIN look like?
It starts with the three characters "NTR" — the Manufacturer Identification Code the US Coast Guard assigned to INTERMARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. INTERMARINE built hulls across both HIN eras (1973–present): 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 INTERMARINE still in business?
USCG records list INTERMARINE of SARZANA in the MIC database (registered 1973).
How do I decode the year on a INTERMARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. INTERMARINE built hulls across both HIN eras (1973–present): 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.
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "INTERMARINE HIN Decoder," carwhere.com/hin-decoder/ntr, last verified 2026-06-12.