National Association Of Letter Carriers

National Association Of Letter Carriers is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Labor Organizations
• Social Service & Welfare Organizations

North American Industry Classification System (NAICS) Categories:

• Other Social Advocacy Organizations
• Labor Unions And Similar Labor Organizations

Standard Industry Classification (SIC) Categories:

• Social Services, Nec
• Labor Unions & Similar Labor Organizations