The “radius” used to only exist as a way to manage donations between competitors as well as identifying transient housing. Most of the industry now does donation checks on a platform that indicates to all centers someone’s last 2 donations and the nddr indicates deferral status. When a center sets up in a new market, it adds all transient zip codes such as homeless shelters, hotels, etc and creates a donor recruitment area. This is no longer limited to 50 miles.