ULMER BOATWORKS HIN Decoder
Hull Identification Numbers beginning with UBO were assigned by the US Coast Guard to ULMER BOATWORKS of MT PLEASANT, SC. 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
UBO
Location
MT PLEASANT, SC
In business
since 2014
Status
Listed active in USCG records
Parent company
DAI ENTERPRISES LLC
ULMER BOATWORKS hulls (2014–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
The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).
ULMER BOATWORKS HIN FAQ
What does a ULMER BOATWORKS HIN look like?
It starts with the three characters "UBO" — the Manufacturer Identification Code the US Coast Guard assigned to ULMER BOATWORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ULMER BOATWORKS hulls (2014–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ULMER BOATWORKS still in business?
USCG records list ULMER BOATWORKS of MT PLEASANT, SC in the MIC database (registered 2014), associated with DAI ENTERPRISES LLC.
How do I decode the year on a ULMER BOATWORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ULMER BOATWORKS hulls (2014–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 SC
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ULMER BOATWORKS HIN Decoder," carwhere.com/hin-decoder/ubo, last verified 2026-06-12.