Barcode prefixes for each institution

31194: American

35063: American University Washington College of Law

30530: Catholic

35127: Catholic Law

32884: Gallaudet

32777: George Mason

39020: Georgetown

30770: Georgetown Law

32882: George Washington

37010: George Washington University Himmelfarb Health Sciences (some volumes have WRLC item barcodes)

35115: George Washington Law

35969: Howard

32883: Marymount

37090: Trinity

32105: UDC

30478: UDC Law

37010: WRLC