(1) The Minister may by regulations provide for -
(a) the calculation or estimation of the amount of the reckonable earnings and the amount of the reckonable weekly earnings of a person or class of persons for the purposes of this Chapter, in such manner, by reference to such matters and on such basis as may be specified;
(b) the calculation of the amounts payable in respect of pay-related benefit in accordance with prescribed scales and for such adjustments of the amounts as may be necessary to facilitate the computation of the amounts and avoid multiples of other than 10p in the amounts;
(c) the application of this Chapter to persons employed in such class or classes of employment as may be specified in the regulations and may by such regulations make such modifications in the provisions of this Chapter as may appear to him to be necessary for that purpose;
(d) the exclusion from the application of this Chapter of persons employed in employment of such class or classes as may be