Reserve materials have varying policies and it depends on the type of Reserve materials selected. There are Closed Reserves, which means the materials are available for Use in the Library Only; some materials are One-Hour Reserve; some are Two-Hour Reserve. Materials that are 3-Day Reserve can be checked out for 3 days, while 7-Day Reserve can be checked out for one week. Overnight Reserve is due back 24 hours from check-out time. When checking out a Reserve book at the Circulation Desks at either Haas or Young Library, please make sure you know how long you can have the Reserve item. The Circulation Assistant will be able to tell you.