Chris,
Yes!
Go here to join:
http://www.nsrca.org/PayPal/registration.htm
To quote the Membership Application in this month's K-Factor:
"Memberships are calendar year based. Applications received after October 1st of each year will be valid for the remainder of that year and all of the following year."
It's on page 30 of the October 2007 issue but has been the standing policy.
If you have any trouble I'll try to help you anyway I can!
John L. Konneker