CAL CUSTOM MACHINE & MFG HIN Decoder
Hull Identification Numbers beginning with GQN were assigned by the US Coast Guard to CAL CUSTOM MACHINE & MFG of CHICO, CA. 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
GQN
Location
CHICO, CA
In business
since 2003
Status
Listed active in USCG records
CAL CUSTOM MACHINE & MFG hulls (2003–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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CAL CUSTOM MACHINE & MFG HIN FAQ
What does a CAL CUSTOM MACHINE & MFG HIN look like?
It starts with the three characters "GQN" — the Manufacturer Identification Code the US Coast Guard assigned to CAL CUSTOM MACHINE & MFG — followed by a 5-character hull serial and a 4-character date code, 12 characters total. CAL CUSTOM MACHINE & MFG hulls (2003–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is CAL CUSTOM MACHINE & MFG still in business?
USCG records list CAL CUSTOM MACHINE & MFG of CHICO, CA in the MIC database (registered 2003).
How do I decode the year on a CAL CUSTOM MACHINE & MFG HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. CAL CUSTOM MACHINE & MFG hulls (2003–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 CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "CAL CUSTOM MACHINE & MFG HIN Decoder," carwhere.com/hin-decoder/gqn, last verified 2026-06-12.