I henhold til Europa-Parlamentets og Rådets direktiv 1999/5/EF af 9. marts 1999 om radio- og teleterminaludstyr samt gensidig anerkendelse af udstyrets overensstemmelse [3] (direktivet om radio- og teleterminaludstyr) bør fabrikanterne sørge for, at kortdistanceudstyr anvender frekvenserne på en sådan måde, at skadelig interferens for andre kortdistancesystemer undgås.
Pursuant to Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (the R&TTE Directive) [3] manufacturers should ensure, that short-range devices effectively use the radio frequency spectrum so as to avoid harmful interference to other short-range devices.