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PPN 06/21 for NHS Suppliers: Carbon Reduction Plan Guide

By Frazer Holroyd · 14 min read · Carbon Reporting · Updated February 2026

Since April 2024, the NHS requires Carbon Reduction Plans for all new procurements — not just those over £5 million. This is a significant extension beyond the central government PPN 06/21 requirements and affects every supplier bidding for NHS contracts.

NHS-Specific Requirements

Beyond standard PPN 06/21 compliance, NHS suppliers must demonstrate alignment with NHS Net Zero targets (80% emission reduction by 2028-2032 for the supply chain). Carbon Reduction Plans should show how your services support NHS trust Green Plan objectives.

How Carbon Affects NHS Tender Scoring

Social value (including carbon) typically accounts for 10-20% of NHS tender evaluations. Some trusts weight sustainability even higher. A strong Carbon Reduction Plan can be a genuine competitive differentiator — not just a compliance checkbox.

Key Scope 3 Categories for NHS Suppliers

Frequently Asked Questions

Do all NHS suppliers need a Carbon Reduction Plan?

Since April 2024, yes — for all new procurements, not just those over £5 million.

What's the difference between PPN 06/21 and NHS requirements?

PPN 06/21 applies to contracts over £5 million. The NHS extended this to ALL procurements and added NHS Net Zero alignment.

How is carbon weighted in NHS tender evaluations?

Social value (including carbon) typically accounts for 10-20% of evaluations.

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