Port concession in United States · Port of Seattle
Canonical Concessio ID
US12X0000079
Display format: US-12-X-000007-9
Country
United States (US)
Sector
Port (12)
Family
Transport
Structure
Terminal Lease
Full structure
—
Grantor
Port of Seattle
Operator
SSA Marine (Carrix)
Term start
—
Contract end
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About Concessio IDs
A Concessio ID is a 12-character canonical identifier for an infrastructure concession. The format is CC-AA-S-NNNNNN-K — country, asset class, structure, sequence, and a Luhn check digit. The check digit protects against typos and fabricated IDs.
Concessio IDs are stable for the life of the concession. They do not change if the asset is renamed, sold, or restructured. Cite them in filings, press releases, research reports, and contracts.