Tuff Hull — HIN at a glance
| Manufacturer | Tuff Hull |
|---|---|
| City | Telluride |
| State | Colorado |
| Country | United States |
| MIC code | THI |
| HIN format | USCG (12 characters) |
| Status | Active |
| Boat types | Sailboat |
Decode a Tuff Hull HIN
Paste any HIN starting with THI — we'll decode the serial number, build month, build year and model year instantly.
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About the USCG HIN format
Tuff Hull is registered with the US Coast Guard and stamps a standard 12-character Hull Identification Number on every vessel produced for the US market. The format breaks down as:
THI NNNNN M Y YY └┬┘ └──┬──┘ │ │ └┬┘ │ │ │ │ └─ Model year (last two digits) │ │ │ └──── Production year (last digit, 1972 standard) │ │ └────── Production month (A=Jan, B=Feb ... L=Dec, skipping I) │ └──────────── Hull serial number (alphanumeric) └─────────────── MIC: Manufacturer Identifier Code (THI)
Federal regulation 33 CFR § 181 requires every US-built or imported recreational vessel to display this HIN permanently on the upper starboard side of the transom, and a duplicate HIN in a hidden location inside the hull.
Other Colorado boat manufacturers
- Boulder Boat Works (
BOU) - Colorado Homemade Boats (
CLZ) - Creature Craft (
CRE) - Down River Equipment CO (
DRC) - Fuller Style INC (
FUL) - Hog Island Boat Works (
HQG) - Hansa Sailing Us LLC (
HSU) - Valley Marine INC (
KPS) - Kokopelli Outdoor (
KRD) - Long Haul Folding Kayaks (Dba (
LHM) - Marshall Marine CO (
MMO) - Retroboats LLC (
RET)
Frequently asked questions
What is the MIC code for Tuff Hull?
Tuff Hull is assigned USCG Manufacturer Identifier Code (MIC) THI. All Tuff Hull boat HINs begin with these three characters.
How long is a Tuff Hull HIN?
Tuff Hull uses the US HIN format: 12 characters total. The first 3 are the MIC, followed by 5 serial-number characters, 1-letter month, 1-digit year, and 2-digit model year.
Is Tuff Hull still in business?
Tuff Hull is currently listed as active in the US Coast Guard MIC database (last published October 2019). Even out-of-business manufacturers' HINs remain valid identifiers for the boats they built.