ROCK WATER BOATS HIN Decoder — MIC RUQ
Hull Identification Numbers beginning with RUQ were assigned by the US Coast Guard to ROCK WATER BOATS of OCEAN CITY, MD. The company is recorded as out of business since 2003 — 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
RUQ
Location
OCEAN CITY, MD
In business
since 2001
Status
Out of business (2003)
ROCK WATER BOATS hulls (2001–2003) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
How a ROCK WATER BOATS HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example RUQ45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | RUQ | Identifies ROCK WATER BOATS, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | ROCK WATER BOATS'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 ROCK WATER BOATS? Check it before you pay.
ROCK WATER BOATS is recorded out of business (2003) — which affects recalls, parts support, and resale. 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
ROCK WATER BOATS HIN FAQ
What does a ROCK WATER BOATS HIN look like?
It starts with the three characters "RUQ" — the Manufacturer Identification Code the US Coast Guard assigned to ROCK WATER BOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ROCK WATER BOATS hulls (2001–2003) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is ROCK WATER BOATS still in business?
USCG records list ROCK WATER BOATS as out of business since 2003. 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 ROCK WATER BOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ROCK WATER BOATS hulls (2001–2003) 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 ROCK WATER BOATS 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 "RUQ" MIC the same as a ROCK WATER BOATS serial number?
No. "RUQ" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies ROCK WATER BOATS. The hull serial number is characters 4–8: ROCK WATER BOATS'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 ROCK WATER BOATS 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 ROCK WATER BOATS 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, "ROCK WATER BOATS HIN Decoder," carwhere.com/hin-decoder/ruq, last verified 2026-06-15.