4 Amendment of regulation 18 of the principal Regulations
In regulation 18 of the principal Regulations (disregard of changes in tax, contributions etc.) in paragraph (c)—
(a) for the words “weekly earnings figures” there shall be substituted the words “upper earnings limit”;
(b) for the words “that Act;” there shall be substituted the words “that Act, the lower or upper limits applicable to Class 4 contributions under that Act or the amount specified in section 11(4) of that Act (small earnings exception in relation to Class 2 contributions);”.