Directorate of Measures and Precious Metals, on November 6, 2012, was certified integrated quality management system (ISO 9001), environmental management system (ISO 14001) and occupational health and safety management system (OHSAS 18001). On behalf of the certification body American Quality Assessors International - AQA Europe, which made certification, Professor Paul M. Andre presented certificate to representatives of Directorate in premises of DMDM on December 18, 2012, congratulating the certification. The certificate applies to the following scope of work: test/calibration of measurement equipment, verification and type approval of measuring instruments, development of new and improvement of existing standards of the Republic of Serbia, including methods of calibration, inspection and hallmarking of precious metals articles, making a decision on sign of precious metals articles producer and metrology supervision.