There are two important preliminaries for MCCS ILL to work:
A patron record with a user ID matching the library code (i.e. 29_PALMS, ALBANY, BARSTOW, BEAUFORT, BUTLER, CAMP_SMITH, CHERRY_PNT, IWAKUNI, JOHNSON, KANEOHE, LEJEUNE, MIRAMAR, NEW_RIVER, PARRIS_ISL, PENDLETON, SAN_DIEGO and YUMA) must be created with a user profile of INTRANSIT. Note that this is the same user record that the overdue notices pull the library address information from.
A second user record for each library must be created with the user profile ILL. The user ID is not important for this record, but the following is a recommended naming convention: 29-ILL, ALB-ILL, BAR-ILL, BEA-ILL, BUT-ILL, CAM-ILL, CHE-ILL, IWA-ILL, JHN-ILL, KAN-ILL, LEJ-ILL, MIR-ILL, NEW-ILL, PAR-ILL, PEN-ILL, SAN-ILL and YUM-ILL.
MCCS interlibrary loan involves multiple simultaneous check outs which automatically override the re-circulate block. The following graph illustrates this mysterious process, with a hypothetical loan from Cherry Point to Beaufort.
The tricky part is probably when BEAUFORT first receives the item in the mail, and the library has to discharge the item in order to remove the charge from the BEAUFORT Intransit user and charge it to the patron.
Then when the patron returns the item, BEAUFORT has to discharge it twice -- once to remove the charge from the patron, and a second time to remove the charge from the BEA-ILL user and create a new charge to the CHERRY_PNT Intransit user before the item is mailed back to Cherry Point.
The circulation rule for ILL items is 8 weeks with no renewals. Intransit items have a circulation rule of 28 days.
The second case scenario describes an inter-library loan when a library needs to borrow materials from outside the system. Let's suppose Cherry Point borrows Cyber Wars from Park University Library.
The third case scenario describes an inter-library loan when a USMC library wants to loan materials to a library outside the system.