QUIET WATERS BOATWORKS HIN Decoder — MIC WTW
Hull Identification Numbers beginning with WTW were assigned by the US Coast Guard to QUIET WATERS BOATWORKS of RIVA, MD. 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
WTW
Location
RIVA, MD
In business
since 2013
Status
Listed active in USCG records
QUIET WATERS BOATWORKS hulls (2013–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 QUIET WATERS BOATWORKS HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example WTW45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | WTW | Identifies QUIET WATERS BOATWORKS, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | QUIET WATERS BOATWORKS'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 QUIET WATERS BOATWORKS? 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
QUIET WATERS BOATWORKS HIN FAQ
What does a QUIET WATERS BOATWORKS HIN look like?
It starts with the three characters "WTW" — the Manufacturer Identification Code the US Coast Guard assigned to QUIET WATERS BOATWORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. QUIET WATERS BOATWORKS hulls (2013–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is QUIET WATERS BOATWORKS still in business?
USCG records list QUIET WATERS BOATWORKS of RIVA, MD in the MIC database (registered 2013).
How do I decode the year on a QUIET WATERS BOATWORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. QUIET WATERS BOATWORKS hulls (2013–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 QUIET WATERS BOATWORKS 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 "WTW" MIC the same as a QUIET WATERS BOATWORKS serial number?
No. "WTW" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies QUIET WATERS BOATWORKS. The hull serial number is characters 4–8: QUIET WATERS BOATWORKS'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 QUIET WATERS BOATWORKS 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 QUIET WATERS BOATWORKS records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in MD
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, "QUIET WATERS BOATWORKS HIN Decoder," carwhere.com/hin-decoder/wtw, last verified 2026-06-15.