Which of the following is NOT a requirement for exit doors?

The requirement that exit doors must swing inward is not aligned with safety standards generally established for emergency exits. In most regulations, specifically those related to health and safety in facilities like nursing homes, it's critical that exit doors swing outward. This design allows for easier egress during emergencies, as it enables multiple individuals to exit simultaneously without obstruction.

Moreover, exit doors must be clearly marked to ensure that residents, staff, and visitors can easily identify them, and they must remain unlocked during occupancy to facilitate immediate access in case of an emergency. These measures are essential in promoting safety and ensuring compliance with fire codes and safety regulations.