MARINE ENVIRONMENT HIN Decoder
Hull Identification Numbers beginning with MNP were assigned by the US Coast Guard to MARINE ENVIRONMENT of BAINBRIDGE IS., WA. The company is recorded as out of business since 2003 — 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
MNP
Location
BAINBRIDGE IS., WA
In business
since 1993
Status
Out of business (2003)
MARINE ENVIRONMENT hulls (1993–2003) 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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MARINE ENVIRONMENT HIN FAQ
What does a MARINE ENVIRONMENT HIN look like?
It starts with the three characters "MNP" — the Manufacturer Identification Code the US Coast Guard assigned to MARINE ENVIRONMENT — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MARINE ENVIRONMENT hulls (1993–2003) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is MARINE ENVIRONMENT still in business?
USCG records list MARINE ENVIRONMENT as out of business since 2003. 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 MARINE ENVIRONMENT HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MARINE ENVIRONMENT hulls (1993–2003) 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 WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MARINE ENVIRONMENT HIN Decoder," carwhere.com/hin-decoder/mnp, last verified 2026-06-12.