47 CFR § 2.807 - Statutory exceptions.
(a) Carriers transporting radiofrequency devices without trading in them.
(b) Radiofrequency devices manufactured solely for export.
(c) The manufacture, assembly, or installation of radiofrequency devices for its own use by a public utility engaged in providing electric service: Provided, however, That no such device shall be operated if it causes harmful interference to radio communications.
(d) Radiofrequency devices for use by the Government of the United States or any agency thereof: Provided, however, That this exception shall not be applicable to any device after it has been disposed of by such Government or agency.