In Group E occupancies, Group B educational occupancies and Group I-4 occupancies, egress doors from classrooms, offices and other occupied rooms shall be permitted to be provided with locking arrangements designed to keep intruders from entering the room where all of the following conditions are met:
- The door shall be capable of being unlocked from outside the room with a key or other approved means.
- The door shall be openable from within the room in accordance with Section 1010.1.9.
- Modifications shall not be made to existing listed panic hardware, fire door hardware or door closers.
- Modifications to fire door assemblies shall be in accordance with NFPA 80.