ROYAK MARINE HIN Decoder
Hull Identification Numbers beginning with GMC were assigned by the US Coast Guard to ROYAK MARINE of ORANGEVALE, 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
GMC
Location
ORANGEVALE, CA
In business
since 1990
Status
Listed active in USCG records
ROYAK MARINE hulls (1990–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
The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).
ROYAK MARINE HIN FAQ
What does a ROYAK MARINE HIN look like?
It starts with the three characters "GMC" — the Manufacturer Identification Code the US Coast Guard assigned to ROYAK MARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ROYAK MARINE hulls (1990–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ROYAK MARINE still in business?
USCG records list ROYAK MARINE of ORANGEVALE, CA in the MIC database (registered 1990).
How do I decode the year on a ROYAK MARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ROYAK MARINE hulls (1990–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, "ROYAK MARINE HIN Decoder," carwhere.com/hin-decoder/gmc, last verified 2026-06-12.