The Office and Professional Employees International Union (OPEIU), AFL-CIO, representing approximately 90,000 workers across the United States and Canada, filed an unfair labor practice (ULP) charge Friday against ZP Better Together for their unlawful layoff of 50 workers in February just as workers were meeting with a union and had been organizing against an onerous arbitration agreement. We urge ZP Better Together to rehire those laid-off workers without delay and provide back pay to ensure their intimidatory action doesn't continue to have a chilling effect on labor organizing.