4. The following instruments are revoked—
(a)the Social Security Coordination (Council Regulation (EEC) No 574/72) (Amendment) (EU Exit) Regulations 2019(1);
(b)the Social Security Coordination (Regulation (EC) No 883/2004, EEA Agreement and Swiss Agreement) (Amendment) (EU Exit) Regulations 2019(2);
(c)the Social Security Coordination (Regulation (EC) No 987/2009) (Amendment) (EU Exit) Regulations 2019(3);
(d)the Social Security Coordination (Council Regulation (EEC) No 1408/71 and Council Regulation (EC) No 859/2003) (Amendment) (EU Exit) Regulations 2019(4).