A Seattle labor dispute over “cold ironing” work is interrupting ILWU-PMA labor contract talks. In its press release, the International Longshore and Warehouse Union (ILWU) claimed that SSA Marine colluded with another union in Seattle to set the stage for a National Labor Relations Board (NLRB) intervention. This could trigger SSA to use another workforce to do “cold ironing” work that was previously agreed to be assigned to the ILWU.