引文、生效和生效2.修改工作税抵免（权利和最高税率）条例20023修改《儿童税收抵免条例》20024修改《社会保障捐助和福利法案》第4章修改社会保障缴款和福利的附表4（北爱尔兰）1992年法案签名解释性说明

Introductory Text1.Citation, commencement and effect2.Amendment of the Working Tax Credit (Entitlement and Maximum Rate) Regulations 20023.Amendment of the Child Tax Credit Regulations 20024.Amendment of Schedule 4 to the Social Security Contributions and Benefits Act 19925.Amendment of Schedule 4 to the Social Security Contributions and Benefits (Northern Ireland) Act 1992SignatureExplanatory Note