1. PERPUN Membership – Requestor is affiliated with a library or institution under Perpustakaan Universiti dan Perpustakaan Negara (PERPUN) network.
2. MLG Membership – Requestor is affiliated with a library under the Malaysian Libraries Group (MLG) collaboration.
3. Non-Membership – Requestor is not affiliated with USM, PERPUN, or MLG member libraries (external organizations).