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USCG Documented Vessel

SPARTAN

No. 518285Towing 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
518285
IMO number
8867870
Call sign
WDH8035
Flag
Us
Service
Towing Vessel
Self-propelled
Yes
Propulsion
Diesel Reduction
Hull material
Steel
Year built
1969

Dimensions & tonnage

Length
85.4 ft
Breadth
28.6 ft
Depth
9.2 ft
Gross tonnage
147 GT
Net tonnage
99 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
November 19, 2025
Expires
December 31, 2026
Endorsements
Coastwise UnrestrictedRegistry

Builder

Builder
Mangone Shipbuilding Co
Shipyard
Mangone Shipbuilding Co
Built at
Houston, Tx, United States
Year built
1969

Hailing port

Hailing port
Seattle, Wa, United States
Managing owner (company)
Oregon Sealark LLC
Managing owner location
Longview, Wa

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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Spartan — USCG Documented Vessel 518285 · CaptainsGround