The classification and/or the identifying number of each parking lot is indicated on the parking map and posted at the entrance to each lot. Parking restrictions for each lot vary and are posted with signage located at entry points to parking lots. Some spaces within lots have specific parking restrictions; these spaces are individually signed. Valid permits must be displayed in their respective colored lots. Gold, Red and Blue lots are identified as commuter parking lots. Silver, Purple and Green lots are identified as residential parking lots.