ABOUT SEIU LOCAL 509SEIU Local 509 is a fast-growing, progressive union representing over 28,000 state workers, human service workers, higher education workers, and family child care providers in Massachusetts. In the current political environment, the union has a steadfast vision to increase participation and power among its rank-and-file membership. SEIU Local 509 is part of the Service Employees International Union (SEIU), one of the largest and fastest-growing labor unions in the United ...
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