Sustainability used to sit at the edges of NHS procurement; a question at the back of the tender document, worth a handful of marks, answered with a statement of intent and a recycling policy. That is no longer the case. The NHS has committed to becoming the world’s first net zero national health service, and its procurement rules have changed decisively to reflect that ambition. For suppliers bidding for NHS framework places, sustainability is now a scoring category, a compliance requirement, and increasingly, a differentiator between otherwise comparable bids.
The question is no longer whether your organisation needs to take net zero seriously. It is whether your evidence is strong enough to score well when it matters.
NHS net zero commitment: what it means for suppliers
The NHS has set two headline targets: net zero by 2040 for the emissions it controls directly, and net zero by 2045 for the emissions it influences through its supply chain. The NHS supply chain accounts for more than 60% of the NHS carbon footprint. That is why supplier requirements are central to the whole strategy: the NHS cannot reach its targets without its supply chain moving in the same direction.
To drive that movement, NHS England published a Net Zero Supplier Roadmap that sets out escalating requirements between now and 2030. The roadmap is not a wish list. Each milestone translates into procurement requirements that affect what you need to submit, what will be scored, and ultimately, whether you can compete at all. Understanding the roadmap in full is one of the most important things any supplier can do before starting a bid planning and strategy exercise.
The roadmap milestones every supplier needs to know
The NHS Net Zero Supplier Roadmap sets out a clear sequence of requirements. Here is where things stand, and where they are heading.
April 2022: Social value weighting introduced
NHS England introduced a 10% minimum social value weighting into all procurement. This weighting covers both net zero commitments and wider social value contributions. It applies to all NHS procurement, regardless of contract size.
April 2023: Carbon Reduction Plans required for high-value contracts
For all new contracts above £5 million per year, suppliers became required to publish a Carbon Reduction Plan covering their UK Scope 1 and 2 emissions, along with a defined subset of Scope 3 emissions.
April 2024: CRP and Net Zero Commitment requirements extended
The NHS proportionately extended the Carbon Reduction Plan requirements to cover all new procurements. For contracts below £5 million, a Net Zero Commitment is required as a minimum. This is a a publicly stated commitment to achieve net zero by 2050 at the latest, signed by the board or a director. Larger contracts still require a full Carbon Reduction Plan. In both cases, these requirements operate as pass/fail criteria at the selection stage.
April 2027: Full global emissions reporting for all suppliers
This is the next major milestone, and preparation needs to begin now. From April 2027, all suppliers will be required to publicly report targets, emissions and publish a Carbon Reduction Plan for global emissions aligned to the NHS net zero target, for all of their Scope 1, 2 and 3 emissions. This is a step change from the current requirements, which focus primarily on UK-based Scope 1 and 2 emissions.
April 2028: Product-level carbon footprinting
New requirements will be introduced overseeing the provision of carbon footprinting for individual products supplied to the NHS. The methodology is still being defined, but suppliers delivering physical products into the NHS supply chain should begin thinking about lifecycle emissions data now.
2030: Alignment or exit
From 2030, suppliers will only be able to qualify for NHS contracts if they can demonstrate their progress through published progress reports and continued carbon emissions reporting. By this point, sustainability will not just influence scoring. It will be a condition of eligibility.
The full roadmap detail is available directly on the NHS England Greener NHS suppliers page.
What a Carbon Reduction Plan actually needs to contain
Many suppliers have a Carbon Reduction Plan in name only. A document that lists aspirations without measurement is not a compliant CRP, and it will not score well if evaluated beyond pass/fail.
A credible Carbon Reduction Plan covers three things: a current baseline of your emissions, a clear set of reduction targets with timelines, and the specific actions you are taking to achieve those targets. Since April 2024, that baseline must include Scope 1 and 2 emissions plus a subset of Scope 3 categories. From April 2027, it must cover all Scope 3 categories for global operations.
Scope 1 covers direct emissions from sources your organisation owns or controls: vehicles, boilers, fuel combustion. Scope 2 covers indirect emissions from purchased energy. The broadest category is Scope 3, which covers everything from the goods and services you purchase through to business travel, employee commuting, and the downstream use of your products. For many organisations, Scope 3 is the hardest to measure and the most significant in volume.
The guidance under PPN 006 (formerly PPN 06/21) sets out the methodology in detail, and NHS England offers a free CRP checking service. If your current CRP has not been reviewed against the current requirements, it is worth doing so before it becomes a live issue during a framework application. A bid readiness assessment will surface any gaps in your compliance documentation before a live opportunity lands.
The Evergreen Sustainable Supplier Assessment
Alongside the Carbon Reduction Plan requirements, the NHS has developed its own tool for gathering and evaluating supplier sustainability data: the Evergreen Sustainable Supplier Assessment. Hosted on the Atamis platform, the Evergreen assessment is the mechanism through which suppliers share their sustainability credentials directly with NHS decision-makers.
The Evergreen tool is a voluntary self-assessment. It denotes a sustainability maturity level for each supplier, indicating how closely an organisation is aligned with the NHS targets. Level 1 requires a compliant Carbon Reduction Plan and demonstrates basic awareness and commitment to sustainability, including a net zero target. Meanwhile, Level 2 adds more detailed emissions data, including Scope 3 coverage. Level 3 requires independently validated net zero targets aligned to NHS net zero ambitions, for example via the Science Based Targets initiative.
For NHS Supply Chain frameworks, Evergreen is now more than a useful credential. From 6 April 2026, NHS Supply Chain introduced updated sustainability requirements, with Level 1 acting as the baseline standard for suppliers bidding into relevant opportunities.
For NHS England Medicines Value and Access tenders, suppliers require a valid Evergreen assessment at the point of submission, alongside a compliant Carbon Reduction Plan. No submission means a supplier cannot be awarded a framework place or contract. For other categories, the assessment is strongly recommended as a way to demonstrate sustainability maturity to NHS buyers and to ensure your credentials are visible in the system they are using to evaluate suppliers.
Completing the Evergreen assessment properly takes time, particularly at Levels 2 and 3. Do not leave it until the day a framework application opens.
Social value: what it is and how to make it score
The social value component of NHS procurement often confuses suppliers, partly because it is frequently conflated with sustainability, and partly because the requirements have evolved as policy has moved on. They overlap but are not the same thing.
Social value must account for at least 10% of the total weighting in NHS procurements, in line with the NHS Social Value Playbook. In practice, some commissioners weight it higher. The current central government policy framework is PPN 002, published in February 2025, with the updated Social Value Model becoming mandatory from 1 October 2025 after a transition period. This aligns social value commitments to five national missions and eight defined policy outcomes.
What does scoring well on social value actually require? The fundamental principle is specificity. Award criteria based on a supplier’s general corporate policies (for example, corporate responsibility statements) are not relevant or proportionate and must not be used. That guidance is aimed at buyers, but it tells suppliers exactly what will and will not score: commitments must be specific, measurable, time-bound, and directly linked to what will be delivered through the contract.
A statement that your organisation is committed to supporting local employment does not score. A commitment to recruit two apprentices within the contract area, with named training partners and a six-month milestone for completion, does. The difference is not aspiration; it is evidence and accountability.
Strong social value responses in healthcare contexts might include commitments around NHS workforce pathways, local economic contributions, health and wellbeing initiatives for staff or communities, or supply chain transparency. Our healthcare tendering expertise means we understand the specific social value themes that resonate with NHS evaluators, and how to frame your commitments in a way that translates to marks.
Turning sustainability into scoring evidence: the practical steps
Understanding the requirements is the starting point. Converting them into scored marks requires a different kind of work.
Start by auditing your current position. Do you have a compliant, published CRP? Is your Net Zero Commitment signed at board level and publicly accessible? Have you completed an Evergreen assessment, and at what level? Do your social value commitments in past bids meet the specificity standard the new policy requires? Honest answers to these questions tell you where your gaps are, and how much work needs to happen before your next application.
Next, build a sustainability evidence base that can be reused and updated across multiple submissions. Good case studies showing the measurable impact of previous sustainability commitments (e.g., emissions reductions achieved, apprentices created, local spend generated) are among the most persuasive pieces of evidence you can include. They demonstrate that your commitments are not theoretical.
Be careful about over-promising. The NHS takes social value and sustainability delivery seriously through contract management. Promises made at bid stage become binding deliverables, with performance tracked and, in some cases, scored. Commitments you cannot realistically fulfil are a liability, not an asset.
Finally, treat the 2027 milestone as a live planning issue. By April 2027, every NHS supplier regardless of contract size or category must publish a full organisational emissions footprint. For organisations without mature emissions measurement in place, building that capability takes time. The suppliers who will be best positioned in 2027 are those who start now.
Common questions from suppliers
Do we need a Carbon Reduction Plan if we are a small organisation?
Yes, though the level of detail required is proportionate. For smaller contracts, a Net Zero Commitment (a publicly stated board-level commitment to reach net zero by 2050) meets the current requirement. A full CRP is required for contracts above £5 million per year, and from April 2027, all suppliers will need a full CRP covering global Scope 1, 2, and 3 emissions regardless of contract size. NHS England also provides a free CRP checking service, which is worth using.
What is the difference between the Evergreen assessment and a Carbon Reduction Plan?
They are separate requirements. A CRP is a structured document setting out your emissions baseline, reduction targets, and action plan. It is required by procurement policy (PPN 006). The Evergreen assessment is an NHS-specific platform tool through which you share your sustainability credentials with NHS buyers. You may be required to submit both, particularly for NHS England medicines tenders.
How much does sustainability actually affect our score?
At a minimum, 10% of the total score is allocated to social value and net zero combined. In some procurements, this weighting is higher. The CRP is a pass/fail condition at selection stage. A failure here means your bid goes no further. Where sustainability is scored, the difference between a generic response and a specific, evidenced one can be the difference between a winning submission and a response that falls just short.
Getting sustainability working for you, not against you
Sustainability requirements in NHS procurement are not going away. They are expanding, escalating, and becoming more granular. For suppliers who treat them as a compliance burden, they will always feel like a hurdle. For those who invest in their evidence, their measurement, and their genuine sustainability journey, they represent a real competitive advantage.
At Bidding, we help organisations build sustainability and social value responses that go beyond the minimum and score where it counts. From CRP review to social value strategy, our framework application support ensures that your submission reflects your organisation’s genuine commitment, in the language that NHS evaluators look for.
Get in touch with Bidding today to make sure your sustainability evidence is working as hard as the rest of your bid.
