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USCG Documented Vessel

RYAN T

No. 643073Offshore Supply VesselValid
Data as of · Source: U.S. Coast Guard
Every answer cited & verifiedAll 4 USCG exam modulesReviewed by a former NMC exam writer

Vessel particulars

Official number
643073
IMO number
8982591
Call sign
WDC9570
Flag
Us
Service
Offshore Supply Vessel
Self-propelled
Yes
Propulsion
Diesel Reduction
Hull material
Aluminum
Year built
1981

Dimensions & tonnage

Length
100.5 ft
Breadth
24.6 ft
Depth
3.2 ft
Gross tonnage
98 GT
Net tonnage
66 NT

Documentation

A Certificate of Documentation (COD) is the U.S. Coast Guard’s federal record of a vessel’s nationality and ownership — a national alternative to state titling for eligible vessels. Learn how it differs from state registration in the registration vs documentation guide.

COD status
Valid
Issued
October 8, 2025
Expires
October 31, 2026
Endorsements
Coastwise UnrestrictedRegistry

Builder

Builder
Swiftships INC
Shipyard
Swiftships INC
Built at
Morgan City, La, United States
Year built
1981

Hailing port

Hailing port
Los Angeles, La, United States
Managing owner (company)
Groundtackle Holdings LLC
Managing owner location
Terminal Island, Ca

Planning to run this boat as a charter or take paying passengers? Carrying up to six for hire needs an OUPV “six-pack” captain’s license.

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Independent reference tool — not affiliated with, endorsed by, or sponsored by the U.S. Coast Guard or the National Maritime Center. Vessel data is derived from public USCG sources and may lag official records; always verify with the issuing authority.

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Ryan T — USCG Documented Vessel 643073 · CaptainsGround