The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) is a global trade organisation with more than 100 chapters spread across the United States, Canada, Australia, and Brazil, and 3,500 signatory contracting firms. SMACNA, an organization that has offices in Chantilly, Virginia, and Washington, D.C., is a pioneer in promoting quality and excellence in the sheet metal and air conditioning industries. The purpose is to give SMACNA members a competitive edge through business research, labour relations, industry representation, standards creation, and education in the industry.