The aim of the paper is to show main points of measuring instruments conformity assessment to which need to pay attention and which can be changed in nearest future. Main methods used for the research are analysis of information from databases, comparison of several European Union states legal acts, comparison of conformity assessment institutions (notified bodies) provided services. As result of the research society, institutions involved in measurements instruments conformity assessment and organizatoins not so close with this question, but who using these services, can get know more about situation in field of measuring instruments conformity assessment.