Accreditation Body of Serbia (ATS) in the period of October 4-8, 2010 held a training of technical assessors for accreditation of control organizations according to SRPS ISO/IEC 17020:2002. The training consisted of lectures, practical examples of situation in practice and the test at the end of training, which is a condition for obtaining the status of candidate for the technical assessors to assess control organizations in the field of control of measuring instruments. Directorate of Measures and Precious Metals was attended by 13 participants.