Section 18 and Schedule 7, in so far as they relate to paragraphs 1 to 3, 5 to 11 and 17 of that Schedule

Amendments relating to decisions and appeals

Section 19

Interpretation of Part II of the Act

Section 26(2) and Schedule 9 in so far as they relate to paragraphs 4 to 7 of that Schedule

Further consequential amendments of provisions concerned with Class 1B contributions and certain penalties and interest payable in connection with contributions