When another library needs an item, or an instructor has requested that material be placed on course reserve, a recall notice is placed. A recall notice is sent (usually via e-mail) informing you that a new due date is in effect.
Everyone is guaranteed 10 days with material (for materials due four weeks or longer) and then it may be subject to recall. Material recalled for course reserve has no guaranteed period. Most recalled material is due 10 days from the date the recall notice is sent. You are encouraged to request material from another academic library if you wish; otherwise, material recalled from you cannot be recalled back.
Late fees for recalls are high, and having overdue recalled material will block you from checking out any new material.
The University of Iowa Libraries has generous loan periods and renewal policies. The recall system is a way to ensure that material needed by others is accessible.