http://www.legislation.gov.uk/asc/2024/3/section/17/enactedInfrastructure (Wales) Act 2024enKing's Printer of Acts of Parliament2024-06-13 PART 1 17 1 Regulations may— a amend this Part to add a new type of significant infrastructure project or vary or remove an existing significant infrastructure project; b make further provision, or amend or repeal existing provision, about the type of project that is, or is not, a significant infrastructure project. 2 Regulations under subsection (1)(b) may amend this Act. 3 Regulations under subsection (1) may only add a new type of project or vary an existing type of project if— a the project, or any variation of an existing project, is for the carrying out of works in one or more of the fields specified in subsection (4), and b the works are to be carried out in Wales or the Welsh marine area or both. 4 The fields are— a energy; b flood prevention; c minerals; d transport; e water; f waste water; g waste.