VDX is a web-based service maintained by OCLC and is used to to find, request and track interlibrary loan materials.
We are currently using VDX 8.2 but the documentation for 6.3 is still applicable.
Below is a list of Alberta public library codes used when manually building the rota.
Please note that most library regions have their headquarters (a.k.a. "node") act as the lender on their behalf.