Article 3 Amount of Class 3 contributions Original text. Later amendments are not shown. In section 13(1) of the Act (amount of Class 3 contributions)f1 for “£6.25”, substitute “£6.45”. Annotations Footnotes f1 Section 13 was further amended by article 3 of S.I. 1998/469 from 6th April 1998. ← Article 2 Article 3 Article 4 →