The 42 GHz band is globally harmonised through the International Telecommunication Union's Recommendation ITU-R F.2005 for microwave technology.

ITU-R F.2005 defines radio-frequency channel and block arrangements for fixed wireless systems operating in the 42 GHz (40.5 to 43.5 GHz) band. Each country develops its own specific operating conditions based on the global ITU-R recommendation, covering information such as antenna sizing, minimum distance requirements, and geographic coordination.