According to Plan of supervisory assessment of accredited organizations, Accreditation Body of Serbia (ATS) and Hellenic Accreditation System (ESYD), on April 25, 2012 was realized first regular supervisory assessment of Directorate of Measures and Precious Metals.

Based on Quality Management System according to ISO/IEC 17025, Directorate of Measures and Precious Metals, Metrology Development Sector, Group for dimensional quantities and acoustics, proved its competence for calibration of end gauges by interferometric methods, and Section for electrical quantities for testing of electrical energy meters.