MATHEWS BROTHERS LLC HIN Decoder — MIC IMD
Hull Identification Numbers beginning with IMD were assigned by the US Coast Guard to MATHEWS BROTHERS LLC of DENTON, 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
IMD
Location
DENTON, MD
In business
since 1998
Status
Listed active in USCG records
MATHEWS BROTHERS LLC hulls (1998–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 MATHEWS BROTHERS LLC HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example IMD45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | IMD | Identifies MATHEWS BROTHERS LLC, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | MATHEWS BROTHERS LLC'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 MATHEWS BROTHERS LLC? 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
MATHEWS BROTHERS LLC HIN FAQ
What does a MATHEWS BROTHERS LLC HIN look like?
It starts with the three characters "IMD" — the Manufacturer Identification Code the US Coast Guard assigned to MATHEWS BROTHERS LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MATHEWS BROTHERS LLC hulls (1998–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is MATHEWS BROTHERS LLC still in business?
USCG records list MATHEWS BROTHERS LLC of DENTON, MD in the MIC database (registered 1998).
How do I decode the year on a MATHEWS BROTHERS LLC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MATHEWS BROTHERS LLC hulls (1998–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 MATHEWS BROTHERS LLC 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 "IMD" MIC the same as a MATHEWS BROTHERS LLC serial number?
No. "IMD" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies MATHEWS BROTHERS LLC. The hull serial number is characters 4–8: MATHEWS BROTHERS LLC'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 MATHEWS BROTHERS LLC 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 MATHEWS BROTHERS LLC 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, "MATHEWS BROTHERS LLC HIN Decoder," carwhere.com/hin-decoder/imd, last verified 2026-06-15.