The National Postal Mail Handlers Union (NPMHU), a vital division of LIUNA (AFL-CIO), champions the unity, democracy, and strength of postal workers through comprehensive advocacy and organization.

The NPMHU provides essential resources, including contract interpretation manuals and shop steward guidance. Recently, the union has successfully navigated key issues, securing favorable arbitration regarding discipline and leave payouts, and ensuring retroactive pay updates for members. NPMHU members are actively engaged in political advocacy, supporting candidates, and launching grassroots campaigns against postal cutbacks. The union emphasizes commitment to service, safety protocols, and ensuring fair treatment for all handlers.