(1) Reserve material must be returned directly to the unit from which it is borrowed. If it is returned elsewhere, it is considered to be returned at the time it is received at the unit from which it was borrowed. Special material may be designated for return directly to the unit from which it is borrowed.

(2) All other material is considered returned on the date it is returned to any library unit in the system and presented at the circulation desk or placed in a book drop or receptacle provided for and marked as a material's return location.

(3) Material returned to the outside book drop when the library unit is closed is considered returned as of closing time the previous day that the library was open.