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Port List Methodology

Thursday, September 29, 2016

Graphic Version

Data Source

  • Army Corp of Engineers’ Waterborne Commerce Statistics Center
    • Provides consistency across all three lists
    • Publically available
    • Domestic tonnage based off of operator reports
    • Foreign tonnages built from PIERS, Census, and CBP
  • Considered alternatives
    • AAPA/Port Reporting, Commercial Sources