The world's leading voluntary GHG program

VCU Labels

VCUs can have additional labels for two different reasons:

  1. When projects meet the certification requirements of other non-GHG programs or standards (e.g., the Climate, Community and Biodiversity (CCB) Standards) that have been approved by Verra. The respective labels indicate that the underlying projects meet the requirements of these participating standards or programs. For participating standards or programs, please contact the respective entities directly for details on their requirements.
  2. When VCUs meet the requirements set out by individual markets (e.g., CORSIA) and are therefore eligible to be used within such markets. For requirements set out by such markets, please review the respective section below.

To have VCUs labeled, projects must submit all documents and rules required by the other standard or individual market. Generally, such documentation should be submitted before requesting VCU issuance where the other certification or market eligibility is achieved before VCU issuance. In certain cases, documentation may be submitted after VCU issuance, and VCUs can be retroactively labeled, where the other certification or market eligibility is achieved after VCU issuance. This is essential to ensure VCUs are properly labeled. Note that the period covered by the certification must be greater than or equal to the VCS verification period.

Certification Labels & Required Documents

Climate, Community & Biodiversity Standards (CCB)

Templates are available for preparing VCS+CCB project descriptions, monitoring & implementation reports, validation reports and verification reports

Sustainable Development Verified Impact Standard (SD VISta)

Templates are available for preparing SD VISta project descriptions, monitoring reports, validation reports and verification reports

Crown Standard

Certificate of certification issued by the Thailand Greenhouse Gas Management Organization (TGO) indicating a project’s conformance with the Crown Standard.


Templates are available for preparing VCS + SOCIAL CARBON reports, validation and verification reports

W+ Standard

Templates are available for preparing VCS & W+ project descriptions, monitoring reports and verification reports

VCU Labels and Other Standards

Verified Carbon Units (VCUs) can be labeled with additional certifications when a project meets the requirements set out by participating standards.

For example, a project that meets the requirements of a participating social and environmental standard may issue VCUs that are ‘labeled’ with that standard’s certification.

VCS Policy on Labels and Other Standards

Standards, programs or other sets of requirements developed by non-profit or government organizations can be eligible to participate as labels for VCUs. All such programs, standards and requirements are referred to as ‘standards’ in this VCS policy.

Eligibility Criteria for Other Standards

A standard (or program or other set of requirements) can be eligible, at VCS’ discretion, to become a participating VCU label when the following conditions are met:

  • The standard administrator is a non-profit organization, government or other regulatory body and does not have any involvement in GHG project development that would represent a conflict of interest with respect to administering the standard.
  • The standard has been developed through a process of public stakeholder consultation or is the implementation of regulations that themselves have been developed through a process of public stakeholder consultation.
  • The standard is publicly available.
  • The standard administrator maintains a public record of all projects to which certification statements have been issued.
  • Compliance with the standard’s requirements is indicated via the issuance of a certification statement, and the standard administrator has procedures in place for issuing certification statements and/or specifies procedures for accredited entities to issue such statements. Where accredited entities may issue certification statements, the standard clearly specifies the accredited entities that can issue such statements.
  • The standard is complementary to the objectives and scope of the VCS. For example, it may provide certification with respect to a project’s social and environmental co-benefits.
  • The standard is applicable to GHG projects and the emission reductions or removals generated by such projects (eg, is not a certification that applies at the organizational level).

Request to Become a Participating Standard

Standard administrators may apply to participate as a label for VCUs as follows:

  • The standard administrator shall submit an application to VCS with the following:
    • Evidence of fulfillment of the eligibility criteria set out above.
    • A specimen certification statement and the name(s) of the body(s) that will be issuing certification statements, accompanied by guidance on how to ascertain the authenticity of certification statements.
    • Instruction on whether certification is granted at the project level (ie, granted once and forever to a project) or at the VCU level (ie, must be renewed on a periodic basis and hence only pertains to a given vintage of VCUs).
  • VCS shall review the application pack based upon the eligibility criteria set out above and shall inform the standard administrator of the outcome.
  • Where the standard is accepted as a VCU label, VCS shall update the Verra Registry and corresponding internal procedures to allow VCUs to be labeled with the additional certification. VCS shall also provide on its website the standards that are accepted as VCU labels.

Label VCUs with Participating Standards

Once a standard has been accepted as a VCU label, project proponents may request that their VCUs are labeled with a certification under that standard. Readers are referred to the VCS Registration and Issuance Process document, which sets out the procedure for labeling VCUs.

VCS may suspend or terminate arrangements for labeling VCUs with the certification of a given standard at any time by providing notice to the standard administrator and citing the reason(s). Likewise, a standard administrator may instruct VCS to suspend or terminate labeling VCUs with their certification at any time.

Limitation of VCS Liability

Standard administrators are responsible for overseeing certification against their standards and maintaining public records of certification statements issued.

Any documentation maintained within the Verra Registry with respect to such certification statements represents a secondary repository only and the standard administrators remain the primary source of information and documentation with respect to certification against their standards.

Labeling VCUs with additional certifications within the Verra Registry is undertaken on a best efforts basis.

Neither Verra and the Verra Registry, nor any of their respective affiliates, directors, employees, agents, licensors and/or contractors shall be liable with respect to any claims whatsoever arising out of erroneous additional certification labeling within the Verra Registry for indirect, consequential, special, punitive or exemplary damages, including without limitation claims for losses resulting for claims of whatsoever nature brought against the Verra or the Verra Registry by registry accountholders, project proponents, validation/verification bodies or any other third party. This paragraph shall apply regardless of any actual knowledge or foreseeability of such damages.

Other Programs

Photo: Darren Centofanti

Climate, Community & Biodiversity Standards

Supporting land use projects in addressing climate change, supporting local communities and smallholders and conserving biodiversity

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Photo: Paul Vincent

Verified Carbon Standard

The VCS Program is the world’s leading voluntary program for the certification of GHG emission reduction projects

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Jurisdictional and Nested REDD+ (JNR)

Driving private investment in REDD+ at multiple scales

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