JAMES STEVENS HIN Decoder
Hull Identification Numbers beginning with JSG were assigned by the US Coast Guard to JAMES STEVENS of BROOKSVILLE, ME. The company is recorded as out of business since 1993 — 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
JSG
Location
BROOKSVILLE, ME
In business
since 1982
Status
Out of business (1993)
JAMES STEVENS built hulls across both HIN eras (1982–1993): 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.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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JAMES STEVENS HIN FAQ
What does a JAMES STEVENS HIN look like?
It starts with the three characters "JSG" — the Manufacturer Identification Code the US Coast Guard assigned to JAMES STEVENS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. JAMES STEVENS built hulls across both HIN eras (1982–1993): 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 JAMES STEVENS still in business?
USCG records list JAMES STEVENS as out of business since 1993. 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 JAMES STEVENS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. JAMES STEVENS built hulls across both HIN eras (1982–1993): 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.
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, "JAMES STEVENS HIN Decoder," carwhere.com/hin-decoder/jsg, last verified 2026-06-12.