ADVENTURE SPORTS USA HIN Decoder
Hull Identification Numbers beginning with IRD were assigned by the US Coast Guard to ADVENTURE SPORTS USA of LA JOLLA, CA. The company is recorded as out of business since 1994 — 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
IRD
Location
LA JOLLA, CA
In business
since 1991
Status
Out of business (1994)
ADVENTURE SPORTS USA hulls (1991–1994) 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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ADVENTURE SPORTS USA HIN FAQ
What does a ADVENTURE SPORTS USA HIN look like?
It starts with the three characters "IRD" — the Manufacturer Identification Code the US Coast Guard assigned to ADVENTURE SPORTS USA — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ADVENTURE SPORTS USA hulls (1991–1994) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ADVENTURE SPORTS USA still in business?
USCG records list ADVENTURE SPORTS USA as out of business since 1994. 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 ADVENTURE SPORTS USA HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ADVENTURE SPORTS USA hulls (1991–1994) 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 CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ADVENTURE SPORTS USA HIN Decoder," carwhere.com/hin-decoder/ird, last verified 2026-06-12.