LONG LAKE BOATWORKS HIN Decoder
Hull Identification Numbers beginning with LOO were assigned by the US Coast Guard to LONG LAKE BOATWORKS of NINE MILE FALLS, WA. 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
LOO
Location
NINE MILE FALLS, WA
In business
since 2001
Status
Listed active in USCG records
LONG LAKE BOATWORKS hulls (2001–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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LONG LAKE BOATWORKS HIN FAQ
What does a LONG LAKE BOATWORKS HIN look like?
It starts with the three characters "LOO" — the Manufacturer Identification Code the US Coast Guard assigned to LONG LAKE BOATWORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. LONG LAKE BOATWORKS hulls (2001–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is LONG LAKE BOATWORKS still in business?
USCG records list LONG LAKE BOATWORKS of NINE MILE FALLS, WA in the MIC database (registered 2001).
How do I decode the year on a LONG LAKE BOATWORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. LONG LAKE BOATWORKS hulls (2001–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 WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "LONG LAKE BOATWORKS HIN Decoder," carwhere.com/hin-decoder/loo, last verified 2026-06-12.