7 am and 2 am using their Terrier cards. Student residents can also sign in guests with photo identification at any time, day or night. Overnight visitors of the opposite sex are no longer required to seek a same-sex "co-host". However, during reading period and the week before final exams, no guests are permitted in the halls overnight, and are expected to be out of the hall by 2 am.
==== Mass transit ====
Most of the buildings of the main campus are located on or near Commonwealth Avenue, served by the Kenmore subway stop on the Green Line and five surface stops on the Green Line B branch. Crowding on the busy B branch is very seasonal; during the summer, ridership falls by more than half, largely due to the reduced student population. The South Campus and Fenway Campus areas are served by St. Mary's Street on the C branch and Fenway on the D branch. MBTA bus route 57 parallels the B branch on Commonwealth Avenue; Lansdowne on the MBTA Commuter Rail Framingham/Worcester Line is located near East Campus.
Bicycle …
