The European Commission published a Decision (2006/804/EC11) on the harmonisation of the spectrum for radio frequency identification devices (RFID) operating in the ultra high frequency (UHF) band. The Decision designates UHF spectrum that Member States must make available for use within six months. The effect of the Decision is to put into force the existing recommendations of the European Conference of Post and Telecommunications Administrations (CEPT) and will lift the present uncertainties facing companies seeking to implement large UHF RFID systems in Europe.