The US National Telecommunications and Information Administration (NTIA) was responsible for the studies of the government band 1 710-1 850 MHz, and the Federal Communications Commission (FCC) was responsible for the studies pertaining to the bands 2 110-2 165 MHz and 2 500-2 690 MHz.
Les études sur la bande de fréquences du gouvernement 1 710-1 850 MHz relevaient de la National Telecommunications and Information Administration (NTIA) des É.-U., et les études sur les bandes 2 110-2 165 MHz et 2 500-2 690 MHz, de la Federal Communications Commission (FCC).