NTIA responds to the 3.5 GHz Band Notice for the purposes of: (1) proposing specific changes to the regulatory framework of the spectrum sharing model to effectively protect federal operations and maximize available spectrum available for commercial broadband; (2) outlining a phased implementation and approval process for commercial access to the 3.5 GHz Band; (3) designating smaller zones for the protection of federal systems based on new technical analysis; (4) addressing protection of commercial operations in the 3.5 GHz Band from federal radar systems; and (5) correcting the rules regarding an active protected federal radar site in the 3650-3700 MHz band.

• NTIA 3.5 GHz Letter to the FCC: Promoting Investment in the 3550-3700 MHz Band (GN Docket No. 17-258), January 22, 2020 (pdf)
• NTIA 3.5 GHz Letter to the FCC: Dynamic Protection Criteria (DPA) Implementation, New Exclusion Zone at Nellis AFB NV, and Protection of Radio Quiet Zones, May 17, 2018 (pdf)
• NTIA Letter to FCC on Commercial Operations in the 3550-3650 MHz Band, 03/24/2015 (pdf)