Non-GC CUNY alumni (except CUNY BA alumni) must join the Friends of the Library to use the Graduate Center Library.

Macaulay Honors College alumni may obtain on-site library privileges at their home CUNY campus libraries. 

CUNY BA alums may obtain an alumni ID from a CUNY college home campus office. Along with a photo ID, the alumni ID provides access to  the Graduate Center Library, but no borrowing privileges, off-site access to licensed resources, or interlibrary loan. CUNY Baccalaureate for Unique and Interdisciplinary Studies alumni have full access to CUNY college home libraries.