81Notwithstanding Part I of this Schedule, the following provisions of this Act, that is to say, sections 168(4), 169(3)(c) and (6), in section 180(2) the words "'or which would contravene the condition set out in Schedule 18 to this Act", section 180(3), section 278(1) to (4), paragraph 13 of Schedule 8 and Schedule 18 do not affect—
(a)any determination arising out of a notice to treat served before 25th February 1963, or served at any time in respect of a purchase notice or notice under section 139 of the Act of 1962 (or any corresponding enactment previously in force) which was served before that date ;
(b)any other determination under the Act of 1962 in respect of or arising out of a purchase notice served before that date;
(c)any claim for compensation under section 118 or 123 of the Act of 1962 (or any corresponding enactment previously in force) which arose before that date.