Carbon Trust Certified
CARBON
CONFIDENCE MEDIUM · ANALYSIS ONLY, NOT AN AUDIT OR CERTIFICATION
Our read
Carbon Trust runs several different marks under one visual identity, and conflating them is the most common reading error. The product footprint label at its weakest certifies that a footprint has been measured and a reduction plan exists. At its strongest it certifies that the footprint has fallen year on year, or that reductions are net zero aligned. Those are very different claims sitting behind similar-looking artwork, and the packaging rarely makes the distinction legible to a shopper. Separately, the Route to Net Zero Standard is an organisation-level certification with three tiers, where only the Leading tier requires 1.5C-aligned reductions and a net zero target. The measurement discipline is real: footprints are assessed against ISO 14067 and the GHG Protocol Product Standard by an assessor independent of the client. Two structural caveats. Carbon Trust writes its own assurance requirements and performs the assurance, without an independent accreditation body above it, and it also sells advisory services to companies in the same market. And the Carbon Neutral product label was discontinued in September 2023, so a pack still showing it is displaying a retired claim.
What it covers
- Product carbon footprint measured across the life cycle to ISO 14067 and the GHG Protocol Product Standard
- Product claim 'carbon emissions reductions achieved' requires a footprint falling year on year
- Product claim 'carbon emissions reductions planned' requires only a validated carbon management plan at first verification
- Comparative product claims (lower than others in the brand family, lower than market standard)
- Organisational carbon footprint assurance
- Route to Net Zero Standard with three tiers: Taking Action, Advancing, Leading
- Route to Net Zero Leading tier requires 1.5C-aligned reductions and a net zero target
- Zero Waste to Landfill Standard, PAS 2080 infrastructure carbon management, verified renewable electricity
What it leaves out
Not a criticism of the scheme. A standard is a scope, and this is where this one ends.
- The marks are separate claims and are not interchangeable; a measured footprint is not a reduction
- 'Reductions planned' certifies an intention, not a delivered cut
- Addresses greenhouse gases only; no labour, water, chemicals, biodiversity or circularity criteria
- No independent accreditation body above the scheme; Carbon Trust states it is working toward recognition as a Conformity Assessment Scheme
- Carbon Trust sells advisory and consulting services alongside assurance, to an overlapping client base
- The Carbon Neutral product label was discontinued in September 2023, so older packaging may carry a claim the scheme no longer issues
- No public register of withdrawn or suspended labels was found
- Fees are not published
The scheme
| Issued by | Carbon Trust |
|---|---|
| Where it applies | Global; the label has been used on over 37,000 products across more than 40 countries since 2007 |
| Audit and renewal | Not established from published sources; labels carry a reference timeframe for the specific claim and reduction claims require year-on-year footprint data, which implies recurring re-verification |
| Cost | Not published |
What we read
Carbon Trust product carbon footprint label claim types and Route to Net Zero Standard tier definitions as published at carbontrust.com and label.carbontrust.com, 2026; underlying measurement standards cited by the scheme are ISO 14067 and the GHG Protocol Product Standard
- what_it_covers (claim types), what_it_omits (planned vs achieved) — the product's carbon footprint is reducing year-on-year
- what_it_omits (carbon neutral label retired) — The Carbon Neutral label was discontinued as of September 2023.
- what_it_omits (no accreditation body above the scheme) — towards becoming a recognised Conformity Assessment Scheme (CAS) that can partner with accredited conformity assessment bodies
- what_it_covers (Route to Net Zero tiers) — helps organisations measure and manage their emissions, inform carbon reduction strategies, and align targets for the future
- standard_version_read, geographic_scope — widely recognised international standards such as ISO 14067 and GHG Protocol Product Standard
- what_it_covers (full offering list) — Product Carbon Footprint Label, Organisational Carbon Footprint Label, Assured Model Label, Route to Net Zero Standard, PAS 2080, Zero Waste to Landfill Standard
What we could not establish
Carbon Trust publishes technical documents titled Requirements for Assurance (Parts 1 and 2) which are the actual primary standard; these could not be retrieved in this session, so claim-level thresholds and the formal re-verification interval are not asserted here and renewal_period is left open. Fees are not published anywhere located. No published register of suspensions or withdrawn labels was found, which is why enforcement is scored 2 rather than higher. The organisational carbon footprint label page returned 404 at the expected URL, so its scope coverage (which scopes are mandatory) was not confirmed from primary source. Independence is scored 3: the assessor is genuinely separate from the certified company, but the scheme owner is also the assessor and is not itself accredited by an independent body.
If you hold this certification, it is already on your record. What a buyer cannot see there yet is the evidence behind the parts this standard does not reach.