When must the main entrance to a licensed liquor establishment remain unlocked?

The requirement for the main entrance to a licensed liquor establishment to remain unlocked while non-employees or off-duty employees are present pertains to safety and emergency access considerations. Keeping the entrance unlocked during these times ensures that individuals who may not be part of the establishment's staff, including patrons or visitors, can exit safely in case of an emergency. This aligns with principles of public safety and emergency management, which emphasize the importance of having unobstructed access to exits.

In contexts where no employees are present or during business hours, there are typically stricter guidelines applied to maintain security and protect against theft or unauthorized access, which is why options that suggest locking the entrance at those times would not align with operational safety practices. The requirement to have the entrance open specifically when non-employees are present addresses the need for safety while still balancing the establishment's security interests.