What is validation?

Validation is an initial evaluation of a project or group to ensure it meets the Woodland Carbon Code standard.  

Validations are carried out by organisations which have been approved by the UK Accreditation Service. Validators check that the claims about expected carbon capture are materially correct.

When should I validate and how long does it take?

You can submit your validation documents as soon as you have finished planting your trees. 

It could take up to a year to validate your project. It’s best to plan ahead by contacting your validation body before you finish planting to request a quote and book your slot. 

You have up to three years from the date your project is registered to complete validation. For groups, the three-year period starts when the first project in the group is registered. 

If your planting won’t be finished in this timescale, you can contact us to request a validation extension. Extensions can last up to one year after your planting finishes. Validation extensions can also be given in other extenuating circumstances. 

Who can validate my project?

Organic Farmers & Growers and Soil Association are accredited by the UK Accreditation Service to validate Woodland Carbon Code projects.

 

Organic Farmers & GrowersSoil Association
Organic Farmers and Growers LogoSoil Association Logo

Katherine Degg

carbon@ofgorganic.org  

T: 01939 291 800

Rebecca Fairman

forestrywcc@soilassociation.org

T: 01179 142 435

How much does it cost?

The cost varies because each third-party validator sets their own fees. We recommend getting quotes from both validators.

As of April 2025, validation typically costs between £1,800 and £2,500 plus VAT per project.

The cost for validating a group will be higher, but the cost per project will be lower. For example, the cost per project could be £370 to £1,700 plus VAT, depending on the size of the group.

When your project is validated, Pending Issuance Units are issued. This costs 15 pence per unit. Visit our registry fees page for more details.

If you’ve hired a project developer, they might charge you for their time to prepare the validation documents and work with the validator. Be sure to discuss this with them.

What's the process?

There are six main steps to having your project validated. Your validator will keep your informed about progress.

Significant changes to projects or project developer/owner circumstances

If there are significant changes to a project after validation, it will need to be re-validated. This could happen due to:

  • A significant change to the area or management of the project
  • The project ownership being split between different owners or two neighbouring projects being amalgamated by one owner
  • A project joining or leaving a group of projects

Changes to the area or management of a project may lead to:

  • A change in the carbon prediction, which could result in some carbon units being marked as ‘not delivered’ or
  • An unsuccessful re-validation, with the project and any carbon units issued marked as ‘not delivered’

For more information, contact the Woodland Carbon Code team.

Tips for a smooth validation

  • Give your validator as much notice as possible
  • Make sure your documents are well completed and accurate
  • Submit all necessary supporting evidence
  • Respond quickly to requests for more information, clarification or corrective actions

Video - validating your project

Find out more about the Woodland Carbon Code in this webinar from October 2024.

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