In buildings larger than what size is automatic lighting shutoff required?

Automatic lighting shutoff is required in buildings larger than 5,000 square feet to improve energy efficiency and reduce unnecessary energy consumption. This requirement is part of the energy code regulations aimed at minimizing wasteful usage of lighting in larger spaces where occupancy may fluctuate. Automatic shutoff systems are designed to turn off lights when they are not needed, such as when a space is unoccupied or when natural daylight is sufficient. This helps not only in reducing energy costs but also in contributing to environmental sustainability.

The other size thresholds do not trigger the requirement for automatic shutoff, which means smaller buildings are not mandated to have this energy-saving feature installed under the current energy code guidelines. Thus, the correct threshold distinguishing when automatic lighting shutoff becomes necessary is set at 5,000 square feet.