On April 29, 2011, the Accreditation Body of Serbia (http://www.ats.rs) announced that the decision about the accreditation of the Directorate of Measures and Precious Metals. According to the scope of accreditation, accredited was Directorate of Measures and Precious Metals, Metrology Development Sector, Group for dimensional quantities and acoustics, for calibration of end gauges by interferometry method according to standard ISO 3650: 1998 and Division for electrical quantities, for testing of electricity meters in accordance with a series of standards SRPS EN 62053 and SRPS EN 52470.