STIMSON MARINE HIN Decoder
Hull Identification Numbers beginning with SPM were assigned by the US Coast Guard to STIMSON MARINE of BOOTHBAY, 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
SPM
Location
BOOTHBAY, ME
In business
since 1989
Status
Listed active in USCG records
STIMSON MARINE hulls (1989–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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STIMSON MARINE HIN FAQ
What does a STIMSON MARINE HIN look like?
It starts with the three characters "SPM" — the Manufacturer Identification Code the US Coast Guard assigned to STIMSON MARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. STIMSON MARINE hulls (1989–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is STIMSON MARINE still in business?
USCG records list STIMSON MARINE of BOOTHBAY, ME in the MIC database (registered 1989).
How do I decode the year on a STIMSON MARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. STIMSON MARINE hulls (1989–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, "STIMSON MARINE HIN Decoder," carwhere.com/hin-decoder/spm, last verified 2026-06-12.