MILLER BOATS HIN Decoder
Hull Identification Numbers beginning with MLL were assigned by the US Coast Guard to MILLER BOATS of SANTA MARIA, CA. 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
MLL
Location
SANTA MARIA, CA
In business
since 1978
Status
Listed active in USCG records
MILLER BOATS built hulls across both HIN eras (1978–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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MILLER BOATS HIN FAQ
What does a MILLER BOATS HIN look like?
It starts with the three characters "MLL" — the Manufacturer Identification Code the US Coast Guard assigned to MILLER BOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MILLER BOATS built hulls across both HIN eras (1978–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 MILLER BOATS still in business?
USCG records list MILLER BOATS of SANTA MARIA, CA in the MIC database (registered 1978).
How do I decode the year on a MILLER BOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MILLER BOATS built hulls across both HIN eras (1978–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 CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MILLER BOATS HIN Decoder," carwhere.com/hin-decoder/mll, last verified 2026-06-12.