(1) Where there is any conflict between a provision in a master plan and a provisioning a local plan which was operative before the master plan became operative or in an approved scheme, that provision in the local plan or approved scheme shall, when the master plan becomes operative, cease to be of effect in so far as—
(a) that provision in the local plan or approved scheme has not been implemented; or
(b) there is no valid permit or approval in terms of the repealed Act which authorized the implementation of that provision in the local plan or approved scheme.
(2) If any provision in the by-laws of a local authority conflicts with any provision of an operative master plan or local plan or an approved scheme, such provision of the by-laws shall cease to be of force and as soon as the Minister responsible for approving the by-laws concerned becomes aware of the inconsistency he shall, unless the local authority amends the by-laws concerned so as to remove the inconsistency, cause to be published in a statutory instrument a notice repealing the provision concerned.