ROSBOROUGH BOATS LTD HIN Decoder
Hull Identification Numbers beginning with ZRL were assigned by the US Coast Guard to ROSBOROUGH BOATS LTD of HALIFAX, NS. 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
ZRL
Location
HALIFAX, NS
In business
since 1981
Status
Listed active in USCG records
ROSBOROUGH BOATS LTD built hulls across both HIN eras (1981–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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ROSBOROUGH BOATS LTD HIN FAQ
What does a ROSBOROUGH BOATS LTD HIN look like?
It starts with the three characters "ZRL" — the Manufacturer Identification Code the US Coast Guard assigned to ROSBOROUGH BOATS LTD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. ROSBOROUGH BOATS LTD built hulls across both HIN eras (1981–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 ROSBOROUGH BOATS LTD still in business?
USCG records list ROSBOROUGH BOATS LTD of HALIFAX, NS in the MIC database (registered 1981).
How do I decode the year on a ROSBOROUGH BOATS LTD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. ROSBOROUGH BOATS LTD built hulls across both HIN eras (1981–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 NS
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "ROSBOROUGH BOATS LTD HIN Decoder," carwhere.com/hin-decoder/zrl, last verified 2026-06-12.