Tripoli Rocketry Association

The Tripoli Rocketry Association (TRA) is an international organization and one of the two major organizing bodies for high power amateur rocketry in the United States. == History == Tripoli Rocketry Association was founded in 1964 in the Pittsburgh, Pennsylvania, region as a high school science club, integrating both model rocketry and space science.

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