TNT WELDERS HIN Decoder
Hull Identification Numbers beginning with EOF were assigned by the US Coast Guard to TNT WELDERS of PIERRE PART, LA. The company is recorded as out of business since 2002 — 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
EOF
Location
PIERRE PART, LA
In business
since 1997
Status
Out of business (2002)
TNT WELDERS hulls (1997–2002) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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TNT WELDERS HIN FAQ
What does a TNT WELDERS HIN look like?
It starts with the three characters "EOF" — the Manufacturer Identification Code the US Coast Guard assigned to TNT WELDERS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TNT WELDERS hulls (1997–2002) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is TNT WELDERS still in business?
USCG records list TNT WELDERS as out of business since 2002. 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 TNT WELDERS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TNT WELDERS hulls (1997–2002) 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.
Other builders in LA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "TNT WELDERS HIN Decoder," carwhere.com/hin-decoder/eof, last verified 2026-06-12.