Staircases with how many or more risers require a light switch at the top and bottom of the run?

Staircases with six or more risers require a light switch at both the top and the bottom of the run to ensure safety and proper visibility. This requirement is designed to prevent accidents and falls, as stairs can present significant hazards, particularly in low-light conditions. By having switches at both ends, individuals can easily turn the lights on before ascending or descending, and they can switch the lights off only after they have safely reached their destination. This dual-switch requirement is a common code in many building regulations, emphasizing the importance of safety in design and construction.