This code provides guidelines on the provision of adequate lighting for optimum visual performance in indoor industrial premises. It covers the quality and quantity aspects of lighting, lighting systems and measurement, maintenance and improvement of the lighting systems to ensure safety, comfort, well-being and productivity of persons working in such premises. Ease of implementation is emphasised. Maintenance illuminance is recommended for different types of industrial areas, tasks and processes. This represents the minimum average illuminance, which needs to be maintained at all times throughout the life of the lighting system.