Home/American Shipper/Chart compares liner surcharges for U.S. port strike American Shipper Chart compares liner surcharges for U.S. port strike FreightWaves Staff · Friday, September 07, 2012 Facebook Twitter Pinterest LinkedInAmerican Shipper has reported on many of the surcharges by liner carriers in the last few days. A side-by-side comparison can be found in a useful chart that lists all the surcharges by carrier, equipment and start date.