3AE+WClass 1, 2 and 4 contributions under Part I of the [F1Social Security Contributions and Benefits Act 1992].
Textual Amendments
F1Words in Sch. 2 para. 3A substituted (1.7.1992) by Social Security (Consequential Provisions) Act 1992 (c. 6), ss. 4, 7(2), Sch. 2 para.6