Short answer
If you bid for NHS contracts, expect to need a published, PPN 006-compliant Carbon Reduction Plan. Since April 2024 the NHS applies a carbon requirement to all new procurements, proportionately: a full CRP for contracts of £5 million a year or more and for all new frameworks, and a lighter Net Zero Commitment for lower-value procurements — and many NHS buyers ask for a full CRP regardless. A full CRP must cover Scope 1, 2 and the five mandatory Scope 3 categories, commit to net zero, be director-approved, and be published on your website.
The NHS buys from hundreds of thousands of suppliers, and it has made carbon a condition of doing business. The rules are stricter than the rest of the public sector in one important way — there is no value threshold. This guide sets out exactly what an NHS Carbon Reduction Plan must contain, how it differs from a standard PPN 006 plan, and why plans get rejected.
It applies to any organisation bidding for an NHS contract — NHS trusts, Integrated Care Boards, NHS Supply Chain frameworks, and NHS-commissioned services. According to NHS England's Carbon Reduction Plan procurement guidance, a carbon requirement has applied to all new NHS procurements since April 2024, scaled to contract value — set out in the next section.
The difference from the wider public sector matters. Under PPN 006, central-government departments only have to ask for a CRP on contracts above £5 million per year. The NHS removed that threshold for its own procurements: whatever the contract value, expect to be asked for a published plan. For many small suppliers, an NHS bid is the first time they encounter the requirement — see our guide on CRPs for NHS contracts.
An NHS CRP uses the same PPN 006 structure as any compliant plan. Following the official Government Commercial Agency (GCA, formerly Crown Commercial Service) template, it must include:
Everything on that list is what CarbonPass produces automatically from your utility bills. For the full breakdown of the document, see what a Carbon Reduction Plan must include.
The content is the same; the expectations around it are tighter. Three NHS-specific differences stand out.
The trigger. Central government only has to ask at £5 million a year; the NHS applies a carbon requirement to all new procurements from April 2024, proportionately. A full CRP is required at £5 million a year or more and for all new frameworks; below that, a lighter Net Zero Commitment is accepted — though many NHS buyers ask for a full CRP anyway.
The net-zero date. The NHS targets net zero across its wider supply chain by 2045, ahead of the general 2050 date. From 2027 it expects supplier Carbon Reduction Plans to commit to 2045, so an NHS-facing plan should be built with that target year in mind.
The assessment. Your CRP is the Level 1 foundation of the NHS Evergreen Sustainable Supplier Assessment. Holding a compliant plan is what lets you enter Evergreen and progress up its maturity levels.
NHS evaluators assess the plan against the PPN 006 content requirements, not against who wrote it. Rejections almost always trace back to a missing requirement rather than the quality of the prose:
A plan that follows the official template, reports all the required scopes, and is genuinely published is what passes. Read are CRP generators accepted? for how procurement teams actually assess these documents.
If your NHS bid is due soon, the fastest route is to generate a compliant plan now and publish it. CarbonPass produces a fully PPN 006-compliant Carbon Reduction Plan from your utility bills in about 20 minutes, calculates your Scope 1, 2 and 3 emissions with the GHG Protocol and current DEFRA factors, and gives you a public page to link from your submission.
Once published, keep the plan current: refresh it at least annually, and for NHS work set your target to net zero by 2045 as the roadmap tightens from 2027. Then use it to complete Evergreen Level 1 and protect your access to NHS contracts.
Since April 2024 the NHS applies a carbon requirement to all new procurements, but proportionately. A full PPN 006-compliant Carbon Reduction Plan is required for contracts of £5 million a year or more and for all new frameworks; for lower-value procurements the NHS accepts a lighter Net Zero Commitment (a subset of the full plan). In practice many NHS buyers ask for a full CRP regardless, so most suppliers bidding for NHS work will need one — your tender or framework documents are the source of truth.
A standard PPN 006 CRP commits to Net Zero by 2050. For NHS work the target is tighter: the NHS aims for net zero across its wider supply chain by 2045, and from 2027 it expects supplier plans to commit to that 2045 date. Build your plan so the target year can be set to 2045, and refresh it as the NHS net-zero supplier roadmap tightens.
The document format and content are the same PPN 006 structure — Scope 1, 2 and the five Scope 3 categories, a Net Zero commitment, reduction measures, director sign-off and website publication. The NHS-specific differences are the trigger (all values, not just above £5m), the tighter 2045 net-zero target from 2027, and the fact that the plan feeds the NHS Evergreen Sustainable Supplier Assessment as its Level 1 foundation.
The most common reasons are the same failure modes as any CRP: missing one or more of the five required Scope 3 categories, no clear baseline year, no board-level sign-off, or the plan not actually being published on the supplier’s website. NHS evaluators check the document against the PPN 006 content requirements, so a plan that follows the official template and is genuinely published is what passes.
How the Evergreen maturity levels work and where your CRP fits in.
9 minDo you need a Carbon Reduction Plan to bid for NHS contracts?
6 minThe Carbon Reduction Plan requirement and the pass/fail selection check.
8 minThe Scope 3 categories every compliant CRP must report.
8 minWritten by Awais Khan
Last updated July 2026
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