Michael Kors, Target, and the U.S. Department of Defense all have one thing in common: they outsource their U.S. port trucking and warehousing to companies that routinely violate U.S. labor laws in violation of their own Codes of Conduct.

Leading logistics firms California Cartage (Cal Cartage) and Intermodal Bridge Transport (IBT) are two of the worst lawbreakers. Both companies misclassify their port truck drivers as “independent contractors” to shift company business expenses onto drivers’ backs and to avoid paying for social security, workers comp, and disability – and to keep them from unionizing. Drivers at both companies, and warehouse workers at Cal Cartage, have filed multiple lawsuits and other claims to demand an end to wage theft, a safe workplace, and the right to form a union free from retaliation.

It’s time for Michael Kors, Target, and the U.S. Department of Defense to send a clear message to logistics companies like Cal Cartage and IBT that if they are out of compliance with their Codes of Conduct, and if don’t stop their lawbreaking ways then they will no longer be a legal vendor.