TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN Decoder — MIC TMS
Hull Identification Numbers beginning with TMS were assigned by the US Coast Guard to TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE of JONESBOROUGH, TN. 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
TMS
Location
JONESBOROUGH, TN
In business
since 2011
Status
Listed active in USCG records
TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE hulls (2011–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 TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example TMS45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | TMS | Identifies TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE'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 TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE? 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
TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN FAQ
What does a TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN look like?
It starts with the three characters "TMS" — the Manufacturer Identification Code the US Coast Guard assigned to TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE hulls (2011–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE still in business?
USCG records list TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE of JONESBOROUGH, TN in the MIC database (registered 2011).
How do I decode the year on a TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE hulls (2011–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 TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE 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 "TMS" MIC the same as a TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE serial number?
No. "TMS" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE. The hull serial number is characters 4–8: TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE'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 TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE 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 TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in TN
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, "TENNESSEE MOUNTAIN RIVERS GUIDE SERVICE HIN Decoder," carwhere.com/hin-decoder/tms, last verified 2026-06-15.