THE PORTER CORPORATION HIN Decoder
Hull Identification Numbers beginning with TPV were assigned by the US Coast Guard to THE PORTER CORPORATION of CUMBERLAND CR, ME. The company is recorded as out of business since 1981 — 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
TPV
Location
CUMBERLAND CR, ME
In business
since 1984
Status
Out of business (1981)
THE PORTER CORPORATION hulls (1984–1981) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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THE PORTER CORPORATION HIN FAQ
What does a THE PORTER CORPORATION HIN look like?
It starts with the three characters "TPV" — the Manufacturer Identification Code the US Coast Guard assigned to THE PORTER CORPORATION — followed by a 5-character hull serial and a 4-character date code, 12 characters total. THE PORTER CORPORATION hulls (1984–1981) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is THE PORTER CORPORATION still in business?
USCG records list THE PORTER CORPORATION as out of business since 1981. 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 THE PORTER CORPORATION HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. THE PORTER CORPORATION hulls (1984–1981) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in ME
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "THE PORTER CORPORATION HIN Decoder," carwhere.com/hin-decoder/tpv, last verified 2026-06-12.