Links
The International Association of Sheet Metal, Air, Rail and Transportation Workers
International Training Institute for the Sheet Metal and Air Conditioning Industry
Sheet Metal and Air Conditioning Contractors’ National Association
Indiana State Building and Construction Trades Council
Columbus/Central Ohio Building and Construction Trades Council
Dayton Building and Construction Trades Council
Greater Cincinnati Building and Construction Trades Council
Tri-State Building and Construction Trades Council
Parkersburg-Marietta Building and Construction Trades Council
Upper Ohio Valley Building and Construction Trades Council