There have been questions lately about shared regional depositories. Below is a table from the GPO Time for Change? document. Yellow indicates shared regionals within one state, and orange indicates one regional serving multiple states or areas. The same table is available as a PDF in the link below.
- Regional Depository Libraries in the 21st Century: A Time for Change?, A REPORT TO THE JOINT COMMITTEE ON PRINTING, U.S. Government Printing Office (June 2008). “Existing Regional Depository Library Models,” Table 1, pages 5-6