Sheet Metal, Air, Rail, and Transportation Workers (SMART)
Representing more than 150,000 members in North America, the SMART has been in operation since 1888. Members
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (UA)
The UA represents approximately 370,000 skilled tradespeople in North America and Australia. More than 50,000 of its
