C1Pt. 1 modified by 1995 c. 18, Sch. 1 para. 2(2) (as inserted (27.10.2008) by Welfare Reform Act 2007 (c. 5), s. 70(2), Sch. 3 para. 12(6); S.I. 2008/787, art. 2(4)(f))

C2Pt. 1 applied (with modifications) (1.10.2010) by The Employment and Support Allowance (Transitional Provisions, Housing Benefit and Council Tax Benefit) (Existing Awards) (No. 2) Regulations 2010 (S.I. 2010/1907), regs. 1(2), 6(2)(a), Sch. 1

C3Pt. 1 applied (with modifications) (1.10.2010) by The Employment and Support Allowance (Transitional Provisions, Housing Benefit and Council Tax Benefit) (Existing Awards) Regulations 2010 (S.I. 2010/875), regs. 1(2), 6, Sch. 1 (which amending S.I. was revoked (27.8.2010) by SI 2010/1906, reg. 2)

C4Pt. 1 applied (with modifications) (1.10.2010) by The Employment and Support Allowance (Transitional Provisions, Housing Benefit and Council Tax Benefit) (Existing Awards) Regulations 2010 (S.I. 2010/875), regs. 1(2), 16, Sch. 2 (which amending S.I. was revoked (27.8.2010) by SI 2010/1906, reg. 2)

C5Pt. 1 applied (with modifications (as amended)) (1.10.2010) by The Employment and Support Allowance (Transitional Provisions, Housing Benefit and Council Tax Benefit) (Existing Awards) (No. 2) Regulations 2010 (S.I. 2010/1907), regs. 1(2), 16(2)(a), Sch. 2; (1.5.2012) by The Employment and Support Allowance (Duration of Contributory Allowance) (Consequential Amendments) Regulations 2012 (S.I. 2012/913), regs. 1(2), 10(4)

C6Pt. 1 modified (22.2.2012) by The Social Security (Reciprocal Agreements) Order 2012 (S.I. 2012/360), arts. 1, 2, Sch. 1, Sch. 2

C7Pt. 1 modified (6.4.2016) by The Social Security (Northern Ireland Reciprocal Arrangements) Regulations 2016 (S.I. 2016/287), regs. 1, 2(2)(f), Sch.

C8Pt. 1 applied (with modifications) (27.11.2016 for specified purposes, 6.4.2017 in so far as not already in force) by The Social Security (Northern Ireland Reciprocal Arrangements) (Amendment) Regulations 2016 (S.I. 2016/1050), reg. 2(2)

C9Pt. 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)

C10Pt. 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))

C11Pt. 1 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.

C12Pt. 1 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.

I1S. 22 in force at 18.3.2008 for specified purposes by S.I. 2008/787, art. 2(1)

I2S. 22 in force at 27.10.2008 in so far as not already in force by S.I. 2008/787, art. 2(4)(a)