Welcome to the Arizona Division
The Arizona Division is an organized division of the National Model Railroad Association (NMRA). The NMRA is the largest organization devoted to the development, promotion, and enjoyment of the hobby of model railroading. The NMRA was founded in 1935 in Milwaukee, Wisconsin in order to provide a service to the hobby of model railroading.
A copy of the Arizona Division By-Laws can be found here By-Laws.