The European Telecommunications Standards Institute (ETSI) produces globally-applicable standards for Information and Communications Technologies (ICT), including fixed, mobile, radio, converged, broadcast and internet technologies.
ETSI is a not-for-profit organization with almost 750 ETSI member organizations drawn from 63 countries world-wide.
ETSI technical committee ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM) deals with standardization of radio technologies and related topics.
Get more information here
ERM has a number of Task Groups (TG) which are set up on a short-term basis to deal with particular issues. Each TG is specific to a radio technology or topic: TG11 'Wideband Data Systems', TG17 WG3 'Radio Microphones, Cordless Audio and Audio Links', TG27 'TG27 Radio Site Engineering', TG34 'RFID' etc.