ROCKLAND HARBOR BOATYARD HIN Decoder
Hull Identification Numbers beginning with YHB were assigned by the US Coast Guard to ROCKLAND HARBOR BOATYARD of ROCKPORT, ME. The company is recorded as out of business since 2008 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
YHB
Location
ROCKPORT, ME
In business
since 1997
Status
Out of business (2008)
ROCKLAND HARBOR BOATYARD hulls (1997–2008) 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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ROCKLAND HARBOR BOATYARD HIN FAQ
What does a ROCKLAND HARBOR BOATYARD HIN look like?
It starts with the three characters "YHB" — the Manufacturer Identification Code the US Coast Guard assigned to ROCKLAND HARBOR BOATYARD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ROCKLAND HARBOR BOATYARD hulls (1997–2008) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ROCKLAND HARBOR BOATYARD still in business?
USCG records list ROCKLAND HARBOR BOATYARD as out of business since 2008. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a ROCKLAND HARBOR BOATYARD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ROCKLAND HARBOR BOATYARD hulls (1997–2008) 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 ME
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ROCKLAND HARBOR BOATYARD HIN Decoder," carwhere.com/hin-decoder/yhb, last verified 2026-06-12.