Which rooms in a dwelling unit must always have a switch controlled lighting outlet?

• A. Every habitable room
• B. Kitchen and bathrooms only
• C. Bedrooms only
• D. Living room only

Answer: (A)

Switch-controlled lighting outlets are provided in every habitable room to let you turn lights on and off from the doorway. This improves safety and convenience by avoiding dark rooms when you enter. A habitable room is any space intended for living, sleeping, eating, or recreation—so bedrooms, living rooms, dining rooms, kitchens, and similar spaces all fall under this rule. Limiting the requirement to only certain rooms (like just kitchens or bedrooms) wouldn’t cover all the spaces people use, so the correct understanding is that every habitable room must have a switch-controlled lighting outlet.