47 CFR § 27.1136
Protection of mobile satellite services in the 2000-2020 MHz and 2180-2200 MHz bands
February 16, 2021
An AWS licensee of the 2000-2020 MHz and 2180-2200 MHz bands must accept any interference received from duly authorized mobile satellite service operations in these bands. Any such AWS licensees must protect mobile satellite service operations in these bands from harmful interference.
[78 FR 8270, Jan. 5, 2013]