The overall aim of GHG validation or verification activities is to give confidence to all parties that rely upon a GHG assertion. The party making the GHG assertion is responsible for conformity with requirements of the relevant standard or GHG programme. The validation or verification body is responsible for completing an objective assessment and providing a validation or verification statement concerning the responsible party’s GHG assertion based on evidence. This International Standard provides requirements for bodies that undertake GHG validation or verification using ISO 14064-3 or other relevant standards or specifications. It contains a number of principles that these bodies should be able to demonstrate and provides specific requirements that reflect these principles. General requirements relate to matters such as legal and contractual arrangements, responsibilities, the management of impartiality, and issues of liability and financing. Specific requirements include provisions related to structures, resource requirements and competencies, information and records management, validation and verification processes, appeals, complaints, and management systems