Project design of the carbon project and project monitoring report will be reviewed and checked by qualified certifiers. Most of the carbon standards and protocols accept the certification bodies accredited by UN's clean development mechanism, as known as Designated Operational Entities, DOEs.

Greenfield has rich experience in supporting our clients to finish the validation and verification via following methods:

• validation and verification training
• desk review of project design and monitoring report
• pre-validation and pre-verification service (road show)
• collecting and managing required supporting documents

• CDM Validation & Verification Manual (EB 51, Annex 03)
• ISO 14065:2007 - Greenhouse gases -- Requirements for greenhouse gas validation and verification bodies for use in accreditation or other forms of recognition

• Alternative energies (e.g., wind power, solar power, hydroelectric power, biofuel and biomass)
• Methane collection and combustion (e.g., methane generated by farm animals, landfills or other industrial waste)
• Energy efficiency (e.g., cogeneration, fuel efficiency, energy-efficient buildings)
• Destruction of industrial pollutants (e.g., HFCs, N2O and PFCs)
• Land use, land-use change and forestry (e.g., soil management, reforestation, afforestation, and avoided deforestation)
• Transportation (e.g., urban rapid transit, marine, and aviation)