Section 67 of the principal Act (compulsory acquisition of designated land by Ministers, local authorities and statutory undertakers) and section 68 of that Act (compulsory acquisition by local authorities of land for development) shall cease to have effect, and section 47 of the Post Office Act 1953 shall cease to have effect so far as it authorises the Postmaster General to acquire land compulsorily; and—
sections 28 and 29 below shall have effect instead of those sections; and
references in any other enactment to the designation in a development plan of land as land subject to compulsory acquisition and to land so designated shall cease to have effect.