TWEED STEEL WORKS EASTERN LTD HIN Decoder
Hull Identification Numbers beginning with ZTW were assigned by the US Coast Guard to TWEED STEEL WORKS EASTERN LTD of TWEED, ON. 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
ZTW
Location
TWEED, ON
In business
since 1977
Status
Listed active in USCG records
TWEED STEEL WORKS EASTERN LTD built hulls across both HIN eras (1977–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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TWEED STEEL WORKS EASTERN LTD HIN FAQ
What does a TWEED STEEL WORKS EASTERN LTD HIN look like?
It starts with the three characters "ZTW" — the Manufacturer Identification Code the US Coast Guard assigned to TWEED STEEL WORKS EASTERN LTD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TWEED STEEL WORKS EASTERN LTD built hulls across both HIN eras (1977–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Is TWEED STEEL WORKS EASTERN LTD still in business?
USCG records list TWEED STEEL WORKS EASTERN LTD of TWEED, ON in the MIC database (registered 1977).
How do I decode the year on a TWEED STEEL WORKS EASTERN LTD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TWEED STEEL WORKS EASTERN LTD built hulls across both HIN eras (1977–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in ON
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "TWEED STEEL WORKS EASTERN LTD HIN Decoder," carwhere.com/hin-decoder/ztw, last verified 2026-06-12.