How many wall switch-controlled lighting outlets are required in every habitable room and bathroom in a dwelling unit?

In every habitable room and bathroom within a dwelling unit, the National Electrical Code (NEC) requires at least one wall switch-controlled lighting outlet. This requirement ensures that there is a means of controlling the lighting in these areas directly from the entrance or point of use, enhancing both convenience and safety.

Having at least one wall switch-controlled lighting outlet allows occupants to easily access lighting without having to navigate in the dark, thereby reducing the risk of accidents. This is particularly important in bathrooms and habitable rooms, where visibility is essential for safe use. The Code reflects these practical needs by stipulating the minimum standard, which can always be exceeded with additional outlets as per the homeowner's needs.