| The Customs (Contravention of a Relevant Rule) Regulations 2003 | 2003 No. 3113 | Sch. | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 5(2) | Yes | |
| The Customs (Contravention of a Relevant Rule) Regulations 2003 | 2003 No. 3113 | Sch. | words inserted in earlier amending provision S.I. 2019/486, reg. 10(2) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(3) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | Pt. 13C | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(15) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 4(1) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(2)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 4(3A)(aa) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(2)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 4(3AC) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(2)(c) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 4(3B) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(2)(d) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 4(3C) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(2)(d) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 14 | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(3) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 17(5) | substituted in earlier amending provision S.I. 2019/486, reg. 6(4)(b) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 18(1) | reg. 18 renumbered as reg. 18(1) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(4)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 18(1) | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(4)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 18(2) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(4)(c) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 22(1) | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(5)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 22(3) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(5)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 25(1) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(6)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 25(1B) | words substituted in earlier amending provision S.I. 2019/486, reg. 6(6)(b) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 25(1BA)(1BB) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(6)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 25(3B) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(6)(c) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 26D | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(7) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 27(2) | substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(8) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 27(3) | words substituted in earlier amending provision S.I. 2019/486, reg. 6(8)(b)(ii) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(d) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 27D | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(9) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(2) | words substituted in earlier amending provision S.I. 2019/486, reg. 6(10)(a) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(e)(i) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(2)(a)(ii) | word omitted in earlier amending provision S.I. 2019/486, reg. 6(10)(a) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(e)(ii) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(2)(a)(iii) | word substituted in earlier amending provision S.I. 2019/486, reg. 6(10)(a) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(e)(iii) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(2)(a)(iv) | inserted in earlier amending provision S.I. 2019/486, reg. 6(10)(a) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(e)(iv) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(2)(b)(iii) | words inserted in earlier amending provision S.I. 2019/486, reg. 6(10)(a) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(e)(v) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(5A) | word substituted in earlier amending provision S.I. 2019/486, reg. 6(10)(c) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(f)(i) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(5A)(a)(i) | word omitted in earlier amending provision S.I. 2019/486, reg. 6(10)(c) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(f)(ii) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(5A)(a)(ii) | word inserted in earlier amending provision S.I. 2019/486, reg. 6(10)(c) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(f)(iii) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(5A)(a)(iii) | inserted in earlier amending provision S.I. 2019/486, reg. 6(10)(c) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(f)(iv) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 29(5A)(b)(ii) | words inserted in earlier amending provision S.I. 2019/486, reg. 6(10)(c) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(f)(v) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 35(2) | substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(10)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 35(6) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(10)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 36(2A) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(11) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 39(3)(b) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(12)(a) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 39(10)(11) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(12)(b) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 39A(3)(ba) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(13) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 101(1)(e)(i) | words substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 3(14) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 129 | applied | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 2(3)(4) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 130(1) | applied | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 2(3)(4) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 131 | applied in part (with modifications) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 2(3)(4) | Yes | |
| The Customs (Import Duty) (EU Exit) Regulations 2018 | 2018 No. 1248 | reg. 131(1) | words substituted in earlier amending provision S.I. 2019/486, reg. 6(25) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 6(2)(g) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 17(1) | reg. 17 renumbered as reg. 17(1) | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(2)(a) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 17(1) | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(2)(b) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 17(1)(d)(ii) | word substituted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(2)(c) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 17(2) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(2)(d) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 21(1) | words inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(3)(a) | Yes | |
| The Customs (Export) (EU Exit) Regulations 2019 | 2019 No. 108 | reg. 21(1A) | inserted | The Customs (Declarations) (Amendment and Modification) (EU Exit) Regulations 2020 | 2020 No. 1234 | reg. 4(3)(b) | Yes | |