Thomas Weilacher has been working in the field of telecommunications since he finalised the study on electronic engineering. Since 1992 he has been working with the German regulatory authority (now “Federal Network Agency”, BNetzA). Until 1995 he had been working in the area of licensing and monitoring in a regional office. From 1996 until now he has been involved in international frequency management issues, by working in the headquarters in Mainz. His tasks include the participation in meetings of ECC groups, the Radio Spectrum Committee and ITU-R working parties as a member of the German delegation. He was also acting as Vice Chairman of ECC Working Group FM from 2008 to the beginning of 2014 and has become chairman of WG FM in March 2014.