JOHANSON BOATWORKS HIN Decoder
Hull Identification Numbers beginning with JOH were assigned by the US Coast Guard to JOHANSON BOATWORKS of ROCKLAND, 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
JOH
Location
ROCKLAND, ME
In business
since 1986
Status
Listed active in USCG records
JOHANSON BOATWORKS hulls (1986–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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JOHANSON BOATWORKS HIN FAQ
What does a JOHANSON BOATWORKS HIN look like?
It starts with the three characters "JOH" — the Manufacturer Identification Code the US Coast Guard assigned to JOHANSON BOATWORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. JOHANSON BOATWORKS hulls (1986–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is JOHANSON BOATWORKS still in business?
USCG records list JOHANSON BOATWORKS of ROCKLAND, ME in the MIC database (registered 1986).
How do I decode the year on a JOHANSON BOATWORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. JOHANSON BOATWORKS hulls (1986–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, "JOHANSON BOATWORKS HIN Decoder," carwhere.com/hin-decoder/joh, last verified 2026-06-12.