If you are a member of the AAUP you are automatically a member of the state conference (NC-AAUP) and of your campus AAUP chapter.
To join AAUP, please visit the AAUP National site and select the appropriate payment method. Forms are downloadable from the site as well. 
Joining the National AAUP organization automatically makes you a member of the campus chapter of AAUP at the school to which you are affiliated.
Graduate students are also welcome to join AAUP, with reduced dues at only $10/year!
NC-AAUP: the North Carolina Conference 