JEAN MORIN CONST NAUT HIN Decoder — MIC JMN
Hull Identification Numbers beginning with JMN were assigned by the US Coast Guard to JEAN MORIN CONST NAUT of PESSAC. The company is recorded as out of business since 1992 — 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
JMN
Location
PESSAC
In business
since 1973
Status
Out of business (1992)
JEAN MORIN CONST NAUT built hulls across both HIN eras (1973–1992): 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.
How a JEAN MORIN CONST NAUT HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example JMN45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | JMN | Identifies JEAN MORIN CONST NAUT, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | JEAN MORIN CONST NAUT's own production number for the specific hull (the letters I, O, Q are never used). |
| 9 | Certification month | D | Month built — A=January … L=December (D = April). |
| 10 | Certification year | 4 | Last digit of the certification year. |
| 11–12 | Model year | 24 | The boat’s model year. |
Free · no account · the HIN is on the transom, upper starboard (right) corner
Buying this JEAN MORIN CONST NAUT? Check it before you pay.
JEAN MORIN CONST NAUT is recorded out of business (1992) — which affects recalls, parts support, and resale. The $9.99 Boat Report adds the full CPSC marine-recall check, a HIN consistency check, a verify-before-you-buy checklist, and the USCG builder record for this hull — one downloadable report, one-time, no subscription. See what's included
JEAN MORIN CONST NAUT HIN FAQ
What does a JEAN MORIN CONST NAUT HIN look like?
It starts with the three characters "JMN" — the Manufacturer Identification Code the US Coast Guard assigned to JEAN MORIN CONST NAUT — followed by a 5-character hull serial and a 4-character date code, 12 characters total. JEAN MORIN CONST NAUT built hulls across both HIN eras (1973–1992): 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 JEAN MORIN CONST NAUT still in business?
USCG records list JEAN MORIN CONST NAUT as out of business since 1992. 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 JEAN MORIN CONST NAUT HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. JEAN MORIN CONST NAUT built hulls across both HIN eras (1973–1992): 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.
Where is the HIN on a JEAN MORIN CONST NAUT boat?
On the outside upper-starboard (right) corner of the transom, within two inches of the top — required by 33 CFR 181.29. Since August 1984 an identical duplicate HIN is also molded into an unexposed interior location as an anti-theft measure. Both should match the title, registration, and insurance card exactly.
Is the "JMN" MIC the same as a JEAN MORIN CONST NAUT serial number?
No. "JMN" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies JEAN MORIN CONST NAUT. The hull serial number is characters 4–8: JEAN MORIN CONST NAUT's own production number for that specific boat (the letters I, O, and Q are never used). The full 12-character HIN combines the MIC, the serial, and the date code.
Can a JEAN MORIN CONST NAUT HIN tell me the exact model?
Not on its own. A HIN encodes the builder, hull serial, certification month/year, and model year — not the model name or length. Match the decoded year and serial against JEAN MORIN CONST NAUT records, the title, or a marine survey to confirm the exact model and configuration.
Sources: verified against the USCG Manufacturer Identification Code database (refreshed monthly) · HIN format per 33 CFR Part 181, Subpart C. Reviewed by Sam Reynolds, Lead Researcher, CarWhere. Cite this page: CarWhere, "JEAN MORIN CONST NAUT HIN Decoder," carwhere.com/hin-decoder/jmn, last verified 2026-06-15.