PPN 06/21 is Now PPN 006: What UK Businesses Need to Know

If you've been keeping an eye on UK government procurement rules, you may have recently come across references to "PPN 006" and wondered whether it's something new you need to worry about. The short answer is: it's largely the same framework you already know, but with some important updates that every supplier should be aware of.

What Is PPN 006 — and What Happened to PPN 06/21?

PPN 06/21 — the Procurement Policy Note that introduced the Carbon Reduction Plan requirement for central government suppliers — has been rebranded to PPN 006. The Cabinet Office dropped the year reference from the title deliberately. This isn't just a cosmetic change. It signals that carbon reporting is no longer being treated as a temporary or transitional measure. The government is embedding it as a permanent fixture of the procurement landscape.

Think of it less as a new policy and more as the same policy growing up. The framework that required suppliers bidding on contracts above £5 million per year to hold a Carbon Reduction Plan (CRP) is still intact. What has changed is the level of detail, clarity, and expectation around how businesses comply.

What Has NOT Changed

Before covering the updates, it's worth being clear about what remains exactly as it was under PPN 06/21:

• The £5 million per year contract threshold is unchanged. If you're bidding on central government contracts worth £5 million or more annually, the CRP requirement applies to you.
• The commitment to Net Zero by 2050 must still be stated in your CRP.
• The core structure of a Carbon Reduction Plan — covering your organisation's carbon footprint, your baseline, and your reduction targets — remains the same.
• If you already hold a CRP produced under PPN 06/21, it remains valid. You are not being asked to start from scratch.

What Has Changed — The Key Updates in PPN 006

There are four meaningful updates that businesses need to understand and act on.

1. Greater clarity on Scope 3 reporting

Under PPN 06/21, Scope 3 emissions were required but the categories were not always interpreted consistently. PPN 006 provides more explicit guidance on which Scope 3 categories must be reported. These include purchased goods and services, business travel, employee commuting, and waste generated in operations. If your existing CRP treated Scope 3 lightly, this is the area most likely to need attention.

2. Annual updates are now a requirement

This is perhaps the most significant practical change. Under PPN 06/21, many suppliers treated their CRP as a one-off document — produced to win a contract, then filed away. PPN 006 makes clear that your Carbon Reduction Plan must be reviewed and updated annually. Carbon reporting is now an ongoing compliance obligation, not a tick-box exercise.

3. Supply chain expectations are more explicit

PPN 006 more openly acknowledges the "trickle-down" effect — the expectation that prime contractors will encourage or require their own suppliers to measure and reduce emissions. If you are a Tier 1 supplier to government, you should expect increased scrutiny of your supply chain's carbon footprint, and you should be prepared to ask the same questions of your own suppliers.

4. VAT registration threshold — clarified for all suppliers above the contract threshold

There was previously some ambiguity around how Scope 3 requirements applied depending on VAT status. PPN 006 clarifies this: the requirements apply to all suppliers above the contract threshold, regardless of VAT registration status. If your contracts qualify, the full CRP requirements apply to you.

Already Have a CRP? Here's What to Do

If you produced a Carbon Reduction Plan under PPN 06/21, the good news is you are not starting from scratch. Your existing CRP is still valid. However, you should review it against the updated PPN 006 requirements — particularly around Scope 3 category coverage — and make sure you have a process in place to update it annually going forward.

A practical checklist for existing CRP holders:

• Check that your Scope 3 section covers purchased goods and services, business travel, employee commuting, and waste
• Confirm your Net Zero by 2050 commitment is clearly stated
• Set a calendar reminder to review and republish your CRP at least once a year
• Consider how you will begin gathering emissions data from your own supply chain

Don't Have a CRP Yet? Now Is the Time

If you are bidding — or planning to bid — on government contracts above the £5 million threshold and you do not yet have a Carbon Reduction Plan in place, PPN 006 is a clear signal that this will not go away. The window to get ahead of this requirement, rather than scramble to meet it at tender stage, is right now.

CarbonVerified is built specifically for UK SMEs who need a compliant CRP without the cost or complexity of bringing in specialist consultants. You can measure your emissions, generate a fully compliant Carbon Reduction Plan, and update it annually — all from one platform.

The Bigger Picture

The renaming of PPN 06/21 to PPN 006 is a deliberate signal from government that carbon reporting in procurement is here to stay, and that it will continue to evolve. Businesses that treat their CRP as a living document — rather than a one-off compliance hurdle — will be far better placed as requirements develop further in the years ahead.

The requirement is not going away. But with the right tools, meeting it does not have to be complicated.