19In sections 192(1)(a), 216(2), 264(4)(b) and 273(1) and (2) of the Town and Country Planning Act 1971 for the words “National Coal Board” wherever they occur there shall be substituted the words “British Coal Corporation” and in section 273(1) of that Act for the words “the Board” and “that Board” there shall be substituted respectively the words “the Corporation” and “that Corporation”.