18. Amendment of section 56 of the principal enactment

Section 56 of the principal enactment is hereby amended as follows:-

in subsection (2) of that section, by the substitution for the words “fifteen per centum”, of the words

in subsection (3) of that section, by the substitution for the words “fifteen per centum” wherever such words occur in that subsection, of the words “twelve per centum”.