19. Where, at any time after the coming into force of this Order, any premises are constructed for use as a market it shall be the duty of the market authority for that market to ensure that facilities are provided in the market for the purpose of loading and unloading cattle, sheep, goats and pigs into and out of vehicles and that those facilities consist of fixed ramps or other facilities which are of a height and design suitable for that purpose; and it shall be the duty of the market authority to ensure that any fixed ramp or other facilities which are so provided are fitted with side railings (or some other means of protection) designed and constructed so as to prevent such animals from falling off them.