All University of Southern California University Park Campus (UPC) and Health Sciences Campus (HSC) faculty, staff, graduate students, and undergraduate students currently employed and registered with the University are eligible to request material through IDD. Gould School of Law students, staff and faculty must use Asa V. Call Law Library Interlibrary Loan. Visiting Scholars are currently ineligible for IDD services. To view a complete guide to overall borrowing privileges and ILL eligibility, please consult USC Libraries' Borrowing Privileges.