National Association of Rocketry

The National Association of Rocketry (NAR) is a non-profit tax-exempt scientific organization dedicated to consumer safety, youth education, and the advancement of technology in the hobby of sport rocketry in the United States. Founded in 1957, the NAR is the oldest and largest spacemodeling organization in the world with over 8,000 members and 200 affiliated clubs (known as Sections) across the U.S. It was established in 1957 by Orville Carlisle and G. Harry Stine.

Source: Wikipedia — National Association of Rocketry (CC BY-SA 4.0)