A registration scheme may contain control provisions, that is to say, provisions for preventing multiple occupation of a house unless—
the house is registered, and
the number of households or persons occupying it does not exceed the number registered for it.
Control provisions may prohibit persons from permitting others to take up residence in a house or part of a house but shall not prohibit a person from taking up or remaining in residence in the house.
Control provisions shall not prevent the occupation of a house by a greater number of households or persons than the number registered for it if all of those households or persons have been in occupation of the house without interruption since before the number was first registered.