NSBA Fabricator Members:

To become an NSBA Fabricator Member, you must first become an AISC Active Fabricator Member. Joining AISC automatically enrolls you in NSBA as soon as you pay your first bridge tonnage dues. Fabricators may not join NSBA separate from AISC. Visit AISC Membership to learn how to become an Active Fabricator Member.

NSBA Affiliate Members:

NSBA Affiliate membership is open to individuals and firms in the United States who are active in or have significant interest in the steel bridge industry. NSBA Affiliate memberships are available in the following four classifications:

Class I:
  1)  Design Engineering and Architectural firms with more than one office.
  2)  Firms engaged in the manufacture and/or supply of products, equipment, machinery or other items generally used in the steel bridge market.
  3)  Firms, Organizations and Institutions engaged in activities related to the steel bridge industry (other than manufacturers and suppliers).

Class II:
  1)  Railroads.
  2)  Design Engineering and Architectural firms with one office.
  3)  Detailers.

Class III:
      Individual Membership.

Class IV:
  1)  Governmental agencies.
  2)  Colleges and universities.

NSBA Affiliate Application (PDF File)