Paragraph 3

All buildings must have light levels sufficient to allow hens to see other hens and be seen clearly, to investigate their surroundings visually and to show normal levels of activity.

Where there is natural light, light apertures must be arranged in such a way that light is distributed evenly within the accommodation.

After the first days of conditioning, the lighting regime must be such as to prevent health and behavioural problems and accordingly it must follow a 24-hour rhythm and include an adequate uninterrupted period of darkness lasting, by way of indication, about one third of the day.

A period of twilight of sufficient duration should if possible be provided when the light is dimmed so that the hens may settle down without disturbance or injury.