5.—(1) The principal Regulations shall be amended—
(a)by substituting, in Regulation 5(1)(b) thereof, for the figures “1.1800” the figures “1.2968”, and
(b)by substituting for the provisions of the Schedule thereto the provisions of Schedule 2 to these Regulations.
(2) Any increase of pension payable by virtue of this Regulation shall take effect from 1st December 1972.