AMA now has pro-rated Dues Structure

[Hoss Cain]

You will have to go to AMA's Documents page and check on IIRC Doc. 902, Membership Application to find it.
Not even in the Feb. issue of MA.

I tried to provide a link but it never worked so I just say it is a done deal on the Open Membership Application.
As before all Jr. Sr. memberships are Free.  This is somewhat important as a Jr. Sr. once joined is a member through age 19, and thus eligible for the college scholarship functions, if they do so young enough to have the 3 years continuously.