Major projects authority MPA
Note: As of 1st January 2016 this unit was merged with Infrastructure UK to become the Infrastructure and Projects Authority.
Contents |
[edit] Introduction
The Major Projects Authority was part of the Cabinet Office's Efficiency and Reform Group (ERG) and replaced the Office of Government Commerce's (OGC) Major Projects Directorate.
The Major Projects Authority was established by the government to '...bring about the successful delivery of major projects across central Government by working with departments to ensure the fitness and quality of major projects throughout their life' (ref HM Treasury, Major project approval and assurance guidance).
A project is defined as a 'major project' if it meets any of the following criteria:
- It requires HM Treasury approval.
- It could lead to a breach in departmental expenditure limits.
- It involves significant levels of unplanned spending.
- It could set an expensive precedent.
At the end of 2015, when it merged with Infrastructure UK to become the Infrastructure and Projects Authority, there were approximately 200 major projects running.
[edit] Major projects procedures
Procedures set out by the Major Projects Authority are mandatory for all major projects. They focus on a series of reviews and approvals at key stages in the development of a project.
An Integrated Assurance and Approval Plan (IAAP) is prepared for a major project, setting out the review and approval process that will be adopted.
Projects will generally be reviewed at the following stages:
- Starting gate review. A starting gate review is commissioned by submitting a Risk Potential Assessment (RPA) to the Major Projects Authority.
- Strategic outline case, before any public commitments are made (this may be preceded by OGC gateway review 1 or some other project assessment review (PAR)).
- Outline business case, before OJEU notices are placed (this may be preceded by OGC gateway review 2 or some other project assessment review (PAR)).
- Full business case, before contracts are finalised (this may be preceded by OGC gateway review 3 or some other project assessment review).
- Further project assessment reviews depending on the nature of the specific project. These may follow OGC gateway reviews.
- Consequential reviews for projects that are in difficulty.
The forum for approving major projects at agreed milestones may be either a:
- Major Projects Review Group (MPRG).
- Treasury Approval Point with panel meeting.
- Treasury Approval Point without panel meeting.
The Major Projects Review Group consists of government and private sector experts, from which a panel of three or four individuals are selected to review projects that meets any of the following criteria:
- The whole life costs are over £1bn.
- They are high risk and complex.
- They set a precedent.
- They are highly innovative.
- They are 'of concern'.
Panel meetings are informed by an 'assessment team report' and a 'project and department briefing paper' produced by an assessment team as a result of a project assessment review.
The panel chair will make a recommendation to either:
Generally, the Treasury Approval Point process reviews projects outside the departmental delegated authority but below the level required for Major Projects Review Group scrutiny (usually £1bn).
[edit] Related articles on Designing Buildings
- BIM Task Group.
- Common Minimum Standards.
- Departmental Expenditure Limits DELs.
- Efficiency and Reform Group.
- Government Construction Strategy.
- Infrastructure and Projects Authority.
- Infrastructure UK.
- Infrastructure Exports: UK (IE:UK).
- International Infrastructure Support System (IISS).
- Major development.
- Major project construction contract.
- Nationally Significant Infrastructure Project initiatives reach milestone.
- Nationally significant infrastructure projects.
- OGC.
- OGC Gateway Review process.
- OJEU.
- Public procurement.
- The Green Book.
- Whole life costs.
[edit] External references.
- Major Projects Authority, Assurance Toolkit.
- HM Treasury, Major project approval and assurance guidance.
- Cabinet Office,Integrated Assurance and approvals, Lifespan of a Major Project on the Government Major Projects Portfolio.
- Cabinet Office, MPA Integrated Assurance Toolkit for Major Projects.
- Cabinet Office,Starting Gate Guidance
- Cabinet Office, Risk Potential Assessment Form
- Cabinet Office, A Guide to Planning Integrated Assurance and Approvals
- HM Treasury, Green Book. A framework for the appraisal and evaluation of all policies, programmes and projects.
Featured articles and news
ECA support for Gate Safe’s Safe School Gates Campaign.
Core construction skills explained
Preparing for a career in construction.
Retrofitting for resilience with the Leicester Resilience Hub
Community-serving facilities, enhanced as support and essential services for climate-related disruptions.
Some of the articles relating to water, here to browse. Any missing?
Recognisable Gothic characters, designed to dramatically spout water away from buildings.
A case study and a warning to would-be developers
Creating four dwellings... after half a century of doing this job, why, oh why, is it so difficult?
Reform of the fire engineering profession
Fire Engineers Advisory Panel: Authoritative Statement, reactions and next steps.
Restoration and renewal of the Palace of Westminster
A complex project of cultural significance from full decant to EMI, opportunities and a potential a way forward.
Apprenticeships and the responsibility we share
Perspectives from the CIOB President as National Apprentice Week comes to a close.
The first line of defence against rain, wind and snow.
Building Safety recap January, 2026
What we missed at the end of last year, and at the start of this...
National Apprenticeship Week 2026, 9-15 Feb
Shining a light on the positive impacts for businesses, their apprentices and the wider economy alike.
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description from the experts at Cornish Lime.
IHBC planning for growth with corporate plan development
Grow with the Institute by volunteering and CP25 consultation.
Connecting ambition and action for designers and specifiers.
Electrical skills gap deepens as apprenticeship starts fall despite surging demand says ECA.
Built environment bodies deepen joint action on EDI
B.E.Inclusive initiative agree next phase of joint equity, diversity and inclusion (EDI) action plan.
Recognising culture as key to sustainable economic growth
Creative UK Provocation paper: Culture as Growth Infrastructure.


























