SMWIASheet Metal Workers International Association
References in periodicals archive ?
It's a partnership of HVAC contractors and the technicians and mechanics who work for them, as represented by SMACNA ( and Sheet Metal Workers' International Association (SMWIA) (
SMACNA writes the industry's installation standards; together with SMWIA, it invests tens of millions of dollars in worker training, in more than 160 training centers across the United States.
SMACNA contractors are affiliated with the Sheet Metal Workers International Association (SMWIA) Union.