Virginia Chapter - National Association of Social WorkersNASW-VA is the Virginia Chapter of The National Associational of Social Workers, headquartered in Washington, DC, is the largest membership organization or professional social workers in the world, with more than 120,000 members. Located in Richmond, Virginia, the Virginia Chapter (NASW-VA) is the top provider of social work professional development in the Commonwealth, as well as a nonprofit association that advocates for professional practices and social justice in the interest of thousands of social workers and their clients.