2. The business operator shall ensure that a lairage other than a field lairage has—
(a)a floor which minimises the risk of slipping and which does not cause injury to any animal which is in contact with it;
(b)where ventilation is provided other than naturally, a replacement means of maintaining adequate ventilation available for use if the original source of ventilation fails;
(c)adequate lighting (whether fixed or portable) to enable the animals to be thoroughly inspected at any time; and
(d)drinking facilities adequate in number and size for the watering of animals confined in the lairage, fixed where practicable, and constructed and placed so that they are easily accessible to all the animals, can readily be filled and cannot readily be fouled.