About the AMA...
Quoting from the AMA website...
World's largest model aviation association, representing a membership of more than 170,000 from every walk of life, income level and age group.
Self-supporting, non-profit organization whose purpose is to promote development of model aviation as a recognized sport and worthwhile recreation activity.
Organization open to anyone interested in model aviation.
Official national body for model aviation in the United States. AMA sanctions more than 2,000 model competitions throughout the country each year, and certifies official model flying records on a national and international level.
Organizer of the annual National Aeromodeling Championships, the world's largest model airplane competition.
Chartering organization for more than 2,500 model airplane clubs across the country. AMA offers its chartered clubs official contest sanction, insurance, and assistance in getting and keeping flying sites.