Which condition does NOT qualify for the grandfather clause regarding residential units?

The grandfather clause allows certain residential units to continue operating under previous regulations, providing they meet specific criteria established before a certain date. In this case, the requirement related to living space within a bedroom is relevant. The condition requiring at least 60 ft.² per individual would typically fall under current building and operational standards as opposed to being a basis for qualifying under the grandfather clause.

Instead, the correct answer signifies that the requirement for at least 100 ft.² per individual in the residential unit is what establishes a benchmark for compliance with modern regulations. Since standard operational guidelines for assisted living often state that individual space must meet or exceed this threshold for the safety and comfort of residents, having only 60 ft.² does not comply with these updated requirements. This distinction clarifies why this specific space requirement does not qualify under the grandfather clause, as it does not meet the necessary standards that have been set for current operations.