DUXBURY DORY CO HIN Decoder — MIC KTZ
Hull Identification Numbers beginning with KTZ were assigned by the US Coast Guard to DUXBURY DORY CO of DUXBURY, 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
KTZ
Location
DUXBURY, MA
In business
since 2007
Status
Listed active in USCG records
DUXBURY DORY CO hulls (2007–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
How a DUXBURY DORY CO HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example KTZ45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | KTZ | Identifies DUXBURY DORY CO, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | DUXBURY DORY CO's own production number for the specific hull (the letters I, O, Q are never used). |
| 9 | Certification month | D | Month built — A=January … L=December (D = April). |
| 10 | Certification year | 4 | Last digit of the certification year. |
| 11–12 | Model year | 24 | The boat’s model year. |
Free · no account · the HIN is on the transom, upper starboard (right) corner
Buying this DUXBURY DORY CO? Check it before you pay.
Decoding the HIN confirms the year and serial, but not the safety record. The $9.99 Boat Report adds the full CPSC marine-recall check, a HIN consistency check, a verify-before-you-buy checklist, and the USCG builder record for this hull — one downloadable report, one-time, no subscription. See what's included
DUXBURY DORY CO HIN FAQ
What does a DUXBURY DORY CO HIN look like?
It starts with the three characters "KTZ" — the Manufacturer Identification Code the US Coast Guard assigned to DUXBURY DORY CO — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DUXBURY DORY CO hulls (2007–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is DUXBURY DORY CO still in business?
USCG records list DUXBURY DORY CO of DUXBURY, MA in the MIC database (registered 2007).
How do I decode the year on a DUXBURY DORY CO HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DUXBURY DORY CO hulls (2007–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.
Where is the HIN on a DUXBURY DORY CO boat?
On the outside upper-starboard (right) corner of the transom, within two inches of the top — required by 33 CFR 181.29. Since August 1984 an identical duplicate HIN is also molded into an unexposed interior location as an anti-theft measure. Both should match the title, registration, and insurance card exactly.
Is the "KTZ" MIC the same as a DUXBURY DORY CO serial number?
No. "KTZ" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies DUXBURY DORY CO. The hull serial number is characters 4–8: DUXBURY DORY CO's own production number for that specific boat (the letters I, O, and Q are never used). The full 12-character HIN combines the MIC, the serial, and the date code.
Can a DUXBURY DORY CO HIN tell me the exact model?
Not on its own. A HIN encodes the builder, hull serial, certification month/year, and model year — not the model name or length. Match the decoded year and serial against DUXBURY DORY CO records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in MA
Sources: verified against the USCG Manufacturer Identification Code database (refreshed monthly) · HIN format per 33 CFR Part 181, Subpart C. Reviewed by Sam Reynolds, Lead Researcher, CarWhere. Cite this page: CarWhere, "DUXBURY DORY CO HIN Decoder," carwhere.com/hin-decoder/ktz, last verified 2026-06-15.