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SMART, the International Association of Sheet Metal, Air, Rail and Transportation Workers, is one of North America’s most dynamic and diverse unions with 216,000 members.

Members include sheet metal workers, service technicians, bus operators, engineers, conductors, sign workers, welders, production employees and more.

The Sheet Metal arm of SMART, formerly the Sheet Metal Workers International Association, represents 136,000 members in the sheet metal and related trades.