DEFENSE MARINE LLC HIN Decoder
Hull Identification Numbers beginning with DEF were assigned by the US Coast Guard to DEFENSE MARINE LLC of FORT LAUDERDALE, FL. 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
DEF
Location
FORT LAUDERDALE, FL
In business
since 2018
Status
Listed active in USCG records
DEFENSE MARINE LLC hulls (2018–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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DEFENSE MARINE LLC HIN FAQ
What does a DEFENSE MARINE LLC HIN look like?
It starts with the three characters "DEF" — the Manufacturer Identification Code the US Coast Guard assigned to DEFENSE MARINE LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DEFENSE MARINE LLC hulls (2018–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is DEFENSE MARINE LLC still in business?
USCG records list DEFENSE MARINE LLC of FORT LAUDERDALE, FL in the MIC database (registered 2018).
How do I decode the year on a DEFENSE MARINE LLC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DEFENSE MARINE LLC hulls (2018–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 FL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "DEFENSE MARINE LLC HIN Decoder," carwhere.com/hin-decoder/def, last verified 2026-06-12.