The Infrastructure (Wales) Act 2024 (I(W)A 2024) establishes a unified consenting process for the development of certain types of infrastructure in Wales and in Welsh waters. Developers must obtain infrastructure consent in the form of an infrastructure consent order (ICO) for the development of ‘significant infrastructure projects’ (SIPs) in Wales and Welsh waters, which are projects above certain thresholds in the fields of energy, transport, waste, water, and gas. ICOs are intended to contain the full range of authorisations required to enable development to be implemented. Before I(W)A 2024: Developments of National Significance The Planning (Wales) Act 2015 amended the Town and Country Planning Act 1990 (TCPA 1990) to create a category of development projects in Wales, called ‘developments of national significance’ (DNSs), which established a streamlined route for obtaining planning permission for DNSs, with applications being made directly to the Welsh Ministers, bypassing consideration by local planning authorities. The DNS process is managed by the Planning Inspectorate Wales (PINS Wales) on behalf of the Welsh Ministers. See Practice Note: Permission for Developments of National Significance in