These Regulations amend regulation 1(3) of the National Insurance Contributions (Application of Part 7 of the Finance Act 2004) (Amendment) Regulations 2017 (S.I. 2017/1174) so that regulation 11 of those Regulations comes into force on 21st December 2017 and regulations 5(b), 10 and 13(2)(c) come into force on 6th April 2018. The erroneous reference to regulations 6(b) and 14(2)(c) are also omitted.