Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) - http://www.smacna.org/ An international trade association representing 4,500 contributing contractor firms, that promotes quality and excellence in the sheet metal and air conditioning industry within North America. Provides a list of members, benefits, news and resources.
Air Conditioning & Mechanical Contractors Association of Queensland (AMCA-Q) - http://www.amcaqld.com.au/ Representing the interests of its members in their chosen field of business within Queensland, Australia. Seeks to improve the flow of information about the industry to non-members, the general public and government.
