The Greenhouse Gas Management Certification Unit, Renewable Energy and Environment Research Center, School of Energy and Environment-SEEN, University of Phayao-UP, conducted internal audits according to ISO 14065 standards for the year 2023, to monitor and ensure the quality of management in procedure and staff, review processes, implementation, and quality improvement of the certification unit in compliance with quality requirements and greenhouse gas assessment standards. This was held on November 1-2, 2023, at SEEN, UP.