They intend to seek non-profit status as soon as possible. They may know about IAR, but since it is so small, they probably have not formed an opinion about the group. The IAR intends to become a vocal advocate for unfettered, safe personal rocketry, so eventually the IAR and the government will have to interact. It is available online through the IAR web page. Those without Internet access can send mail to Jim Phillips at 5052 State Route 305, Southington, OH 44470.
Membership is currently free of charge.
You can join right from the IAR website, or by sending your name, postal and email addresses to IAR Secretary Jim Phillips. That's the name for the IAR's private rocketry email list server. It is dedicated to rocketry topics and IAR business.