4(1)Any drought order which—
(a)authorises the taking of water from a source from which water is supplied to an inland navigation; or
(b)suspends or modifies—
(i)a restriction as respects the taking of water from a source from which water is supplied to an inland navigation; or
(ii)an obligation to discharge compensation water into a canal or into any river or stream which forms part of, or from which water is supplied to, an inland navigation,
may include provision for prohibiting or imposing limitations on the taking of water from the inland navigation or for the suspension or modification of any obligation to which a navigation authority are subject as respects the discharge of water from the inland navigation.
(2)A prohibition or limitation by or under a drought order on the taking of water from any source may be imposed so as to have effect in relation to a source from which a person to whom the prohibition or limitation applies has a right to take water whether by virtue of an enactment or instrument, an agreement or the ownership of land.