C1Pt. 1 modified by 1995 c. 18, Sch. 1 para. 2(3) (as inserted (29.4.2013) by The Universal Credit (Consequential, Supplementary, Incidental and Miscellaneous Provisions) Regulations 2013 (S.I. 2013/630), regs. 1(2), 10(b))

C2Pt. 1 modified (coming into force in accordance with art. 1 of the amending S.I.) by The Social Security (Ireland) Order 2019 (S.I. 2019/622), art. 2; 2020 c. 1, Sch. 5 para. 1(1)

C3Pts. 1, 4 modified (coming into force in accordance with art. 1 of the amending S.I.) by The Social Security (Iceland) (Liechtenstein) (Norway) (Citizens' Rights Agreement) Order 2019 (S.I. 2019/1302), art. 2; 2020 c. 1, Sch. 5 para. 1(1)

C4Pts. 1, 4 modified (coming into force in accordance with art. 1 of the amending S.I.) by The Social Security (Switzerland) (Citizens' Rights Agreement) Order 2019 (S.I. 2019/1303), art. 2; 2020 c. 1, Sch. 5 para. 1(1)

C5Pt. 1 modified (1.1.2021) by The Social Security (Norway) Order 2020 (S.I. 2020/1597), arts. 1, 2(1)(2), Sch. (with art. 2(3))

C6Pts. 1, 4 modified (coming into force in accordance with art. 1 of the amending S.I.) by The Social Security (Switzerland) Order 2021 (S.I. 2021/1088), art. 2(1)-(3), Sch.

C7Pts. 1, 4 modified (coming into force in accordance with art. 1(3) of the amending S.I.) by The Social Security (Iceland) (Liechtenstein) (Norway) Order 2023 (S.I. 2023/1060), art. 2, Sch.

C8S. 31 amendment to earlier affecting commencing S.I. 2019/37, art. 8 (30.3.2022) by The Welfare Reform Act 2012 (Commencement No. 34 and Commencement No. 9, 21, 23, 31 and 32 and Transitional and Transitory Provisions (Amendment)) Order 2022 (S.I. 2022/302), art. 5, Sch. para. 4(2)

I1S. 31 in force at 25.2.2013 for specified purposes by S.I. 2013/358, art. 6(3)

I2S. 31 in force at 25.2.2013 for specified purposes by S.I. 2013/358, art. 2(1), Sch. 1 paras. 20, 21

I3S. 31 in force at 25.2.2013 for specified purposes by S.I. 2013/358, art. 5(1)

I4S. 31 in force at 25.2.2013 for specified purposes by S.I. 2013/358, art. 2(2), Sch. 2 para. 40

I5S. 31 in force at 25.2.2013 for specified purposes by S.I. 2013/358, art. 3(b)

I6S. 31 in force at 1.4.2013 for specified purposes by S.I. 2013/358, art. 6(4)(d)(ii)

I7S. 31 in force at 1.4.2013 for specified purposes by S.I. 2013/358, art. 6(4)(d)(i)

I8S. 31 in force at 29.4.2013 for specified purposes by S.I. 2013/983, art. 3(1)(b)

I9S. 31 in force at 29.4.2013 for specified purposes by S.I. 2013/358, art. 5(2)(5) (as amended (24.4.2013) by S.I. 2013/983, art. 23)

I10S. 31 in force at 15.5.2019 for specified purposes by S.I. 2019/37, art. 3 (with arts. 4, 6-8) (as amended by S.I. 2019/935, art. 2)