Climate change has been identified as one of the greatest challenges facing nations, governments, business and citizens for the coming decades. Climate change has implications for both human and natural systems and could lead to significant changes in resource use, production and economic activity. In response, international, regional, national and local initiatives are being developed and implemented to limit greenhouse gas (GHG) concentrations in the Earth's atmosphere. Such GHG initiatives rely on the quantification, monitoring, reporting and verification of GHG emissions and/or removals.

The overall aim of GHG validation or verification activities is to give confidence to all parties that rely upon aGHG assertion. The party making the GHG assertion is responsible for conformity with requirements of therelevant standard or GHG programme. The validation or verification body is responsible for completing anobjective assessment and providing a validation or verification statement concerning the responsible party'sGHG assertion based on evidence.

Eurocert as Independent third-party validation and verification (VVB) plays a vital role in upholding the integrity and quality of greenhouse gas (GHG) emission reductions and removals achieved by VER program. Validation/verification bodies (VVBs) have three main roles under the VER program: to validate projects, verify GHG emission reductions and removals, and assess methodology elements under the methodology approval process.

VVBs are eligible to provide validation and verification services under the VER program if they are accredited under a VER-approved GHG program, accredited under ISO 14065 for scope VER  by an accreditation body(eiscca) that is a member of the Accreditation Forum (SQA forum)  , or approved under the VER  accreditation program.

ISO14065:2013  specifies principles and requirements for bodies that undertake validation or verification of greenhouse gas (GHG) assertion.