USW United Steel Workers of America
IBEW International Brotherhood of Electrical Workers
IAMAW International Association of Machinists and Aerospace Workers
CWA Communication Workers of America
IAFF International Association of Fire Fighters
UA United Association of Plumbers & Pipefitters
SMWIA Sheet Metal Workers International Association
IUPAT International Union of Painters & Allied Trades
Roofers United Union of Roofers, Waterproofers, & Allied Workers
AFL-CIO American Federation of Labor and Congress of Industrial Organizations
APWU American Postal Workers Union
Iron Workers Intl. Assoc. of Bridge, Structural, Ornamental, & Reinforcing Iron Workers
BCTGM Bakery, Confectionery, Tobacco Workers & Grain Millers Intl. Union
BAC International Union of Bricklayers & Allied Craft workers
Boilermakers International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers & Helpers
UMWA United Mine Workers of America
UWUA Utility Workers Union of America
OPCMIA Operative Plasterers & Cement Masons International Association
IUEC International Union of Elevator Constructors
Insulators International Association of Heat, Frost Insulators, & Asbestos Workers
BRS Brotherhood Of Railroad Signalmen
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