(1) Section 13 of the Principal Act is amended in subsection (2) by -

(a) the substitution of the following paragraph for paragraph (b):

"(b) Subject to regulations under section 14, where in any contribution week a payment of more than €352 and not exceeding €424 is made to or for the benefit of an employed contributor in respect of reckonable earnings of that employed contributor -

(i) a contribution shall be payable by the employed contributor, and

(ii) the rate at which that contribution shall be payable shall be the rate of 4 per cent of the amount of the reckonable earnings in that week of each employment reduced by the equivalent of the difference between €12 and one-sixth of the difference between the reckonable earnings of that contributor and €352.01 (or the equivalent thereof in the case of an employed contributor remunerated otherwise than on a weekly basis).",

(b) the substitution of the following paragraph for paragraph (d):

"(d) Subject to paragraph (da), subsection (8) and regulations under section 14, where in any contribution week a payment is made to or for the benefit of an employed contributor in respect of reckonable earnings of that employed contributor, a contribution shall be payable by the employed contributor's employer -