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Nationally Significant Infrastructure Projects: Advice pages

The Planning Inspectorate has published a series of advice pages that are intended to inform applicants, statutory bodies, the public and others about a range of process matters in relation to the Planning Act 2008 (PA2008). The approach to updating these advice pages to reflect changes to the PA2008 process applied by the Planning and Infrastructure Act 2025 is set out in the change log at the bottom of this page.

Updates to this page

From:
Planning Inspectorate
Published:
11 March 2024
Last updated:
12 August 2026
Show all updates

  1. Initial updates applied to the following advice pages: Advice on Cumulative Effects Assessment, Advice on Transboundary Impacts and Process, Advice on Habitats Regulations Assessment, Advice on the Water Framework Directive, Advice on EIA Notification and Consultation, Commitments Register, Technical Advice Page for Scoping Solar Development See 10 August 2026 change log entry, below, for further information.

  2. Relevant advice pages have been updated on an initial basis to reflect some of the key changes to the Planning Act 2008 process introduced by the Planning and Infrastructure Act 2025. These initial updates include the removal of all references to the obsolete statutory requirement for applicants to carry out pre-application consultation. A further detailed review of the Planning Inspectorate’s advice page collection will commence from summer 2026. This review will inform future updates to the advice page collection to fully align content with the amended legal framework. All future updates will be notified here. Advice pages updated on 27 July 2026: Advice on the consultation report (withdrawn), Advice on the preparation and submission of application documents, Advice for local authorities Nationally Significant Infrastructure Projects: People and organisations involved in the process, Nationally Significant Infrastructure Projects: The stages of the NSIP process and how you can have your say, Nationally Significant Infrastructure Projects: Advice on the process for rights of entry to land (under section 53 of the Planning Act 2008) (withdrawn), Nationally Significant Infrastructure Projects: Pre-application advice on Environmental Impact Assessment (replacing Advice note 7: Environmental Impact Assessment: Process, preliminary environmental information and environmental statements and Advice note 9: Rochdale envelope, which are both withdrawn) and Advice on example documents

  3. 'Nationally Significant Infrastructure Projects: Pre-Application Advice on Environmental Impact Assessment' added to the collection

  4. Minor amendment to preamble regarding who advice pages are intended to inform.

  5. Nationally Significant Infrastructure Projects: Terms commonly used in the process added to the collection

  6. link to welsh collection added

  7. Link to Welsh advice pages added

  8. Nationally Significant Infrastructure Projects: Advice on Preparing Applications for Linear Projects

  9. Nationally Significant Infrastructure Projects: Advice on Good Design

  10. Advice notes 3, 10, 11, 12, 17, 18 removed as superseded by: Nationally Significant Infrastructure Projects – Advice on working with public bodies in the infrastructure planning process, Nationally Significant Infrastructure Projects – Advice on Cumulative Effects Assessment, Nationally Significant Infrastructure Projects – Advice on Transboundary Impacts and Process, Nationally Significant Infrastructure Projects – Advice on Habitats Regulations Assessments, Nationally Significant Infrastructure Projects – Advice on the Water Framework Directive, Nationally Significant Infrastructure Projects – Advice on EIA Notification and Consultation, Nationally Significant Infrastructure Projects - Commitments Register, Nationally Significant Infrastructure Projects - Technical Advice Page for Scoping Solar Development

  11. New set of advice pages added to collection

  12. First published.

The advice pages are grouped together by audience or subject matter.

Edrychwch ar y tudalennau cyngor yn Saesneg.

Advice for applicants

Advice for local authorities

Advice for members of the public

Advice on obtaining information about interests in Land

Advice on environmental matters

Advice on design and technical matters

Advice on example documents

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