STEEL SHIP CORPORATION HIN Decoder
Hull Identification Numbers beginning with RLG were assigned by the US Coast Guard to STEEL SHIP CORPORATION of PORTSMOUTH, NH. The company is recorded as out of business since 1984 — 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
RLG
Location
PORTSMOUTH, NH
In business
since 1978
Status
Out of business (1984)
STEEL SHIP CORPORATION hulls (1978–1984) 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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STEEL SHIP CORPORATION HIN FAQ
What does a STEEL SHIP CORPORATION HIN look like?
It starts with the three characters "RLG" — the Manufacturer Identification Code the US Coast Guard assigned to STEEL SHIP CORPORATION — followed by a 5-character hull serial and a 4-character date code, 12 characters total. STEEL SHIP CORPORATION hulls (1978–1984) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is STEEL SHIP CORPORATION still in business?
USCG records list STEEL SHIP CORPORATION as out of business since 1984. 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 STEEL SHIP CORPORATION HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. STEEL SHIP CORPORATION hulls (1978–1984) 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 NH
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "STEEL SHIP CORPORATION HIN Decoder," carwhere.com/hin-decoder/rlg, last verified 2026-06-12.