The American Decency Association (ADA) is a non-profit Christian right organization based in Fremont, Michigan, USA. It was founded in 1999 by Bill Johnson, who was formerly a director of the American Family Association, a Christian minister, and a teacher. The ADA states its mission is "to educate its members and the general public on matters of decency; to initiate, promote, encourage and coordinate activity designed to safeguard and advance public morality consistent with biblical Christianity."