In order to help eliminate the unsafe practice of propping doors, all exterior access doors in your building have been alarmed.
I-Card entrance doors (and hallway doors) will alarm if propped for more than 60 seconds.
Many exterior doors have an immediate alarm which will sound as soon as the door is opened, while other exit doors will alarm after 10 or 60 seconds.
Should one of these doors be propped or held open for a specified length of time, an alarm will sound which can only be silenced by completely closing and securing the door (this also applies to hallway doors in the suites).
Tampering with a door's hardware (for instance to bypass the alarms) is a violation that may be adjudicated through the student conduct or the legal system.