If your library wishes to become an IFM participant, there are a couple of steps you need to take.
Most steps are optional but recommended.
Discuss IFM your accounting department to see if your becoming an IFM participant would cause a problem in your internal financial workflow. Some internal workflow adjustments may be needed. Read Chapter 18 of the ILL Manual. The report is free to all IFM participants, and you order it by updating the IFM field, subfield e, to 'Y'. Add your name to the IFM lenders list.