Home/American Shipper/NRF: U.S. container imports steady in March American ShipperMaritimeTrade Compliance NRF: U.S. container imports steady in March FreightWaves Staff · Monday, May 14, 2018 Imports at ports tracked by the National Retail Federation’s Global Port Tracker slipped just 0.7 percent year-over-year to 1.54 million TEUs. N/A