Trusted by

Over 1,600 local and international buyers

The Credible Carbon Standard

Every Credible Carbon project is independently audited against this standard. It is simple. Four questions that every project must answer before credits are issued. We aim to make our process as streamlined as possible without compromising market integrity or the fungibility of our credits.

Download the Standard (PDF) Version 2.0 · November 2025

Also see the Credible Carbon Registry Rules which govern how registered projects must operate.

Real projects, real people, real benefits. We don't trade business plans. A project must exist, be operational, reduce emissions and demonstrate a positive impact on poverty before any credits are issued against it.

Emission reduction and poverty alleviation go hand in hand in every project we register. We pride ourselves that at least 60% of net carbon revenue is returned to project beneficiaries as cash or reinvestment.

Carbon savings are calculated against our independently reviewed methodologies, which set out what is eligible, how to define the baseline, and what evidence an auditor will look for. They are free to use and a public good.

Our commitment

At least 60% of net carbon revenue returns to project beneficiaries

In 2008 to 2023 we averaged 80%, after all audit, legal and registry fees.

The four questions

Every audit assesses whether a project can satisfy all four of these questions. A project that cannot is not registered, and credits are not issued.

Question 1
Is the project real and up and running?

We do not trade carbon off the back of business plans. The project must have been running long enough for a credible audit — usually at least twelve months.

Question 2
Does the project make a discernible impact on poverty?

The project must describe how it delivers poverty alleviation benefits. The audit checks that the promised benefits were actually delivered.

Question 3
Is the carbon quantification unbiased and verifiable?

Savings must be calculated against our approved methodologies, using conservative, auditable figures grounded in recognised norms.

Question 4
Is the technology in place and functioning as designed?

The project must specify what emission reduction technology is in place and how it operates. The audit verifies it is working according to its design specification.

What this means in practice

The standard keeps transaction costs low and keeps the process focused on what matters to buyers and to communities.

80%
Revenue to projects
Average returned to project beneficiaries 2008 to 2023, after all fees.
10 to 100x
Lower audit costs
Than Gold Standard or Verra equivalents, making the standard accessible to small projects.
100%
Independent auditing
Every project is verified by accredited third-party auditors before credits are issued.
How it connects

The standard, the methodology and the audit work together

The standard
Sets the eligibility criteria
The four questions define what a qualifying project looks like and what buyers can expect from every credit issued.
Download the standard
The methodology
Defines how savings are calculated
Our four independently reviewed methodologies set out how to measure emissions reductions for each project type, from waste to land and energy.
View methodologies
The audit
Verifies both independently
An accredited third-party auditor confirms that the project meets the standard and that savings have been calculated correctly before any credits are issued.
Meet our auditors