Toronto By-law 629, s. (a) — Chapter 629 Property Standards

An exit, a public corridor, a corridor providing access to exit for the public, a corridor serving patients or residents in a care and treatment occupancy or care occupancy, a corridor serving classrooms, an electrical equipment room, a transformer vault and a hoistway pit shall be equipped to provide illumination to an average level not less than 50 lux at floor or tread level and at angles and intersections at changes of level where there are stairs or ramps.