The Green Book, issued by HM Treasury, provides vital guidance for appraising and evaluating policies, programmes, and projects in central government. At its heart is the principle of delivering value for money (VfM), ensuring public resources are used effectively to achieve policy objectives. When combined with the Procurement Act, the Green Book provides a robust framework for achieving VfM in public sector procurement while fostering transparency, accountability, and fairness.
This article explores how public sector buyers and suppliers can practically apply Green Book principles in the context of procurement, ensuring compliance and delivering social and economic value.
What is the Green Book?
The Green Book outlines the methodologies and frameworks for assessing the economic, social, and environmental impacts of government projects. Its purpose is to ensure that decisions about public spending are based on a rigorous evaluation of options and deliver the best outcomes for society.
Key principles include:
- Value for Money: Finding the most efficient way to achieve policy objectives.
- SMART Objectives: Setting goals that are Specific, Measurable, Achievable, Realistic, and Time-bound.
- Comprehensive Appraisal: Evaluating all options, considering costs, benefits, and risks.
- Transparency and Accountability: Documenting decisions and publishing outcomes.
Who Does the Green Book Apply To?
The Green Book is relevant to all public sector organisations involved in the use of public funds! Including:
- Central Government Departments: Responsible for national policy and expenditure decisions.
- Local Authorities: Managing local infrastructure, services, and procurement activities.
- Contracting Authorities: Defined under the Procurement Act as entities responsible for tendering and awarding contracts. This includes government departments, public corporations, NHS bodies, and publicly funded organisations such as schools and housing associations.
- Arms-Length Bodies (ALBs): Entities like regulatory agencies and public broadcasters.
For suppliers, understanding the Green Book helps align proposals with the VfM objectives of these bodies, increasing the likelihood of successful bids.
Need support?
Click hereHow the Green Book Works in Procurement
Procurement is one of the key tools for delivering government objectives. By integrating Green Book principles, public sector buyers can make informed decisions that align with strategic goals, manage risks, and ensure fairness. Here’s how these principles apply in practice:
Strategic Planning and SMART Objectives
Public sector buyers are encouraged to start procurement processes by clearly defining what they aim to achieve. This includes setting measurable objectives that reflect policy priorities, such as reducing homelessness, increasing sustainability, or fostering regional development. A well-thought-out plan allows suppliers to understand the outcomes expected and tailor their bids accordingly.
For example, if a local council seeks to reduce homelessness by 15% over five years, suppliers can propose innovative housing solutions or support services that align directly with this aim. Buyers should ensure these objectives remain realistic and assessable, creating a clear benchmark for success.
Appraising and Comparing Options
A cornerstone of the Green Book methodology is evaluating all viable options. Public sector buyers should use the Options Framework-Filter to weigh choices not only by their financial cost but also by their social and environmental impacts. For example, procuring IT services might involve comparing multiple frameworks that vary in cost, efficiency, and potential for local economic engagement.
Suppliers can strengthen their proposals by emphasising the long-term value they bring, such as reducing operational costs or delivering additional benefits like enhanced accessibility or workforce development. Buyers, in turn, benefit from making comparisons that go beyond price to include broader societal benefits.
Transparency and Accountability
The Green Book’s principles align with the Procurement Act’s requirements for transparency. Buyers are expected to document all stages of their decision-making process and publish performance data for contracts over £5 million. For suppliers, this transparency offers opportunities to demonstrate compliance and innovation in meeting contractual KPIs.
A local authority procuring waste management services, for instance, might set KPIs related to recycling rates or carbon reduction. By making these metrics public, the authority holds itself accountable while ensuring suppliers maintain high standards.
Managing Risks in Procurement
Risk management is essential to successful procurement. Buyers should identify potential challenges early, such as supply chain vulnerabilities or financial uncertainties, and incorporate mitigation strategies into contracts. This proactive approach not only protects public funds but also ensures project continuity.
Suppliers can support this by presenting robust plans to address risks. For example, a supplier offering construction services might outline contingency plans for material shortages or workforce disruptions, giving buyers confidence in their reliability.
Valuing Non-Monetised Benefits
Not all procurement outcomes can be easily quantified, but that doesn’t diminish their importance. Public sector buyers are encouraged to consider non-monetised benefits, such as community well-being or environmental sustainability, when evaluating options.
For example, in a procurement for public transport upgrades, a proposal that reduces commute times while also improving air quality may provide greater overall value than a cheaper but less impactful option. Suppliers should clearly articulate these benefits, using qualitative data to complement quantitative metrics.
Monitoring and Evaluation
Post-procurement evaluation ensures that projects remain on track and deliver on their promises. Buyers should establish monitoring frameworks from the outset, including clear reporting structures and performance reviews.
Suppliers of course play an important role here by providing regular updates and transparent reporting on progress. For example, a supplier delivering digital infrastructure should detail milestones achieved, challenges encountered, and adjustments made to stay aligned with project objectives. Their reporting requirements need to be made clear throughout the tendering process.
Green Book and Social Value in Procurement
The Procurement Act emphasises social value, making it a natural extension of the Green Book’s principles. Buyers are encouraged to embed social value criteria in their procurement processes, such as prioritising suppliers that create local employment opportunities or support sustainability goals.
Similarly, suppliers can gain a competitive edge by demonstrating their commitment to social value. This might include partnering with local businesses, reducing their environmental footprint, or offering training programmes for disadvantaged groups. By aligning with these goals, suppliers position themselves as valuable partners in achieving public sector objectives.