MARSHALL MARINE CORP HIN Decoder
Hull Identification Numbers beginning with MMC were assigned by the US Coast Guard to MARSHALL MARINE CORP of SOUTH DARTMOUTH, MA. 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
MMC
Location
SOUTH DARTMOUTH, MA
In business
since 1972
Status
Listed active in USCG records
MARSHALL MARINE CORP built hulls across both HIN eras (1972–present): 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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MARSHALL MARINE CORP HIN FAQ
What does a MARSHALL MARINE CORP HIN look like?
It starts with the three characters "MMC" — the Manufacturer Identification Code the US Coast Guard assigned to MARSHALL MARINE CORP — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MARSHALL MARINE CORP built hulls across both HIN eras (1972–present): 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 MARSHALL MARINE CORP still in business?
USCG records list MARSHALL MARINE CORP of SOUTH DARTMOUTH, MA in the MIC database (registered 1972).
How do I decode the year on a MARSHALL MARINE CORP HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MARSHALL MARINE CORP built hulls across both HIN eras (1972–present): 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 MA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MARSHALL MARINE CORP HIN Decoder," carwhere.com/hin-decoder/mmc, last verified 2026-06-12.