WORKSKIFF, INC. HIN Decoder
Hull Identification Numbers beginning with MGN were assigned by the US Coast Guard to WORKSKIFF, INC. of SEDRO-WOOLLEY, WA. 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
MGN
Location
SEDRO-WOOLLEY, WA
In business
since 1988
Status
Listed active in USCG records
WORKSKIFF, INC. hulls (1988–present) 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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WORKSKIFF, INC. HIN FAQ
What does a WORKSKIFF, INC. HIN look like?
It starts with the three characters "MGN" — the Manufacturer Identification Code the US Coast Guard assigned to WORKSKIFF, INC. — followed by a 5-character hull serial and a 4-character date code, 12 characters total. WORKSKIFF, INC. hulls (1988–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is WORKSKIFF, INC. still in business?
USCG records list WORKSKIFF, INC. of SEDRO-WOOLLEY, WA in the MIC database (registered 1988).
How do I decode the year on a WORKSKIFF, INC. HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. WORKSKIFF, INC. hulls (1988–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.
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, "WORKSKIFF, INC. HIN Decoder," carwhere.com/hin-decoder/mgn, last verified 2026-06-12.