The Compressed Gas Association (CGA) is the oldest major industrial and medical gas association in the world.In January 1913, Robert King sent a letter to the 75 manufacturers of compressed gases in the United States inviting them to attend a meeting in New York City for the purpose of organizing a new industry association: the Compressed Gas Manufacturers Association. By March of the same year, the Association moved into offices in New York City. By 1914, the Association had 77 U.S. members and 5 Canadian members. The name of the Association was changed in 1948 to include not only manufacturers of compressed gases, but also manufacturers of cylinders, regulators, valves and other equipment in the industry. Members today include many of the major industrial gases companies such as Linde Ga