Skip to main content
Guidance

International Gateway Guidance

International guidance on how gateway assurance reviews should be planned, conducted and reported.

Documents

International Gateway Assurance Reviews Guidance

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gate 1 Review: Business justification

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gate 2 Review: Delivery Strategy

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gate 3 Review: Investment Decision

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gate 4 Review: About this Gate Review Workbook

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gate 5 Review: Operations Review and Benefits Realisation

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Report criteria for Small Projects

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

International Gateway Assurance Review Template

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital.communications@hmtreasury.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

This guidance offers a simple, internationally tested quality assurance process designed to improve the quality of infrastructure business cases and bring them up to the standards required by international lenders. By a series of checks, at key stages of a project’s development weaknesses can be identified and improvements made, so that by the time the project comes to market, both the Government itself and prospective lenders can have confidence that it has been properly developed and is deliverable.

These checks are known as Gateway Reviews and this Guidance explains how they can be performed.

They may be used by any country around the world (irrespective of its legal or governmental system) and for infrastructure projects of any type at both central government level and local or regional level. They are commonly mandated for use where central government money is used but may also be used voluntarily where local government or international funding is used. The Gateway process is versatile and can be applied to both projects and programmes.

Updates to this page

Published 13 August 2026

Sign up for emails or print this page