| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with or without modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | reg. 41 Sch. 1-10 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | Sch. 4 para. 3 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | Sch. 5 para. 3 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | Sch. 7 para. 3 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | Sch. 9 para. 2 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | applied (with modifications) | The Developments of National Significance (Wales) Regulations 2016 | 2016 No. 56 | Sch. 10 para. 2 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Order | revoked | The Infrastructure (Wales) Act 2024 (Consequential, Transitional, Revocation and Saving Provisions) Regulations 2025 | 2025 No. 1192 | reg. 21(c) | Not yet | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words substituted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(2)(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(2)(b)(i) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(2)(b)(ii) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(2)(b)(iii) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(2)(b)(iv) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 2 | words inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(2) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 8(1)(b)(ix) | inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(3)(c) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 8(1)(b)(vii) | word omitted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(3)(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 8(1)(b)(viii) | word inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(3)(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(1)(b)(ix) | word omitted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(4)(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(1)(b)(x) | word inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(4)(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(1)(b)(xi) | inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | art. 2(4)(c) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(6A) | inserted | The Planning Applications (Temporary Modifications and Disapplication) (Wales) (Coronavirus) Order 2020 | 2020 No. 514 | art. 4 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(6A)(b) | words substituted | The Planning Applications (Temporary Modifications and Disapplication) (No. 2) (Wales) (Coronavirus) Order 2020 | 2020 No. 1004 | art. 3(2) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 12(6A)(b) | words substituted | The Planning Applications (Temporary Modifications and Disapplication) (No. 3) (Wales) (Coronavirus) Order 2020 | 2020 No. 1516 | art. 3(2) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 18(3)(ba) | inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(3)(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 18(3)(c) | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(3)(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 18(4) | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(3)(c) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 19(2) | words substituted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(4)(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 19(5) | words substituted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(4)(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 22(4)(b) | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(5) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 23(2)(a) | words substituted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(6) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | art. 29(4)(5) | omitted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(7) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 1 | substituted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 1 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 2 | substituted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 2 | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 4 form | words inserted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(8) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 4 form | word substituted | The Town and Country Planning (Environmental Impact Assessment) (Wales) Regulations 2017 | 2017 No. 567 | Sch. 9 para. 2(8) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 3 para. 2(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words omitted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 3 para. 2(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 3 para. 2(c) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 3 para. 3(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words inserted | The Developments of National Significance (Procedure) (Wales) (Amendment) Order 2019 | 2019 No. 290 | Sch. 3 para. 3(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Development Procedure (Consultees) (Wales) (Miscellaneous Amendments) Order 2021 | 2021 No. 1189 | art. 3(2)(a) | Not yet made to Welsh language versionNot applicable to English language version |   The amending S.I. 2021/1189, art. 3(2)(a) is omitted by virtue of S.I. 2021/1297, art. 2(3)(c) before it comes into force |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words inserted | The Development Procedure (Consultees) (Wales) (Miscellaneous Amendments) Order 2021 | 2021 No. 1189 | art. 3(2)(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Development Procedure (Consultees) (Wales) (Miscellaneous Amendments) Order 2021 | 2021 No. 1189 | art. 3(3) | Not yet made to Welsh language versionNot applicable to English language version |   The amending S.I. 2021/1189, art. 3(3) is omitted by virtue of S.I. 2021/1297, art. 2(3)(d) before it comes into force |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 | 2024 No. 924 | reg. 76(a) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 | 2024 No. 924 | reg. 76(b) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Historic Environment (Miscellaneous Amendments) (Wales) Regulations 2024 | 2024 No. 1258 | reg. 7 | Not yet made to Welsh language versionNot applicable to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Development Procedure (Consultees) (Wales) (Miscellaneous Amendments) Order 2025 | 2025 No. 400 | art. 3(2) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Development Procedure (Consultees) (Wales) (Miscellaneous Amendments) Order 2025 | 2025 No. 400 | art. 3(3) | Not yet made to Welsh language versionApplied to English language version | |
| The Developments of National Significance (Procedure) (Wales) Order 2016 | 2016 No. 55 | Sch. 5 | words substituted | The Amendments to Subordinate Legislation (Minimum Landing Size and Miscellaneous Corrections) (Wales) Order 2025 | 2025 No. 815 | art. 15(2) | Not yet made to Welsh language versionApplied to English language version | |