You can go to www.modelaircraft.org and join there. Or get the phone number and call them. Or fill out an application at your local AMA station (usually a LHS). Or print out the application online and mail it in. Hardest part is stroking the $58 check!

Yes, there is a waiver you need from the AMA to fly turbines. You can find that info on their website. You'll also need a couple other things besides the waiver.

Andy