Between 6 PM and 8 AM, the SCDNR MRRI building and the library doors are electronically locked. Affiliates of College of Charleston Grice Marine Lab, NOAA NOS CCEHBR Charleston Laboratory/Hollings Marine Laboratory/NIST Charleston can gain access after hours using the magnetic access cards. Hold the magnetic card over the sensor and enter once the door is unlocked. Doors will automatically lock again shortly.
To leave the Marine Resources Library between 6 PM and 8 AM, push the green button to the left of the doors. This should work even in the event of a power outage.
In the event of an emergency and if the main exit is inaccessible, exit the building using the emergency exit by the MRL conference room at the back of the library. Push the bar on the door to open it. This door will always automatically lock when it closes and reentry is not possible. This door should never be propped open.