National Postal Mail Handlers Union

The National Postal Mail Handlers Union (NPMHU) is a labor union representing more than 41,000 mail handler craft members in United States Postal Service facilities across the United States. The union has an additional 82,978 associate members, including retirees and federal employees who join primarily to enroll in the Mail Handlers Benefit Plan (MHBP), which offers various health insurance options.

Source: Wikipedia — National Postal Mail Handlers Union (CC BY-SA 4.0)