; (2) to require the disclosure of classified information, law enforcement sensitive information, or other information that must be protected in the interest of national security; or (3) to affect any requirement under section 156 of the National Telecommunications and Information Administration Organization Act ( 47 U.S.C. 921 note), as added by section 1062(a) of the National Defense Authorization Act for Fiscal Year 2000, or any other relevant statutory requirement applicable to the reallocation of Federal spectrum. 4. Millimeter wave spectrum (a) Feasibility assessment Not later than 18 months after the date of enactment of this Act, the NTIA, in consultation with the Commission, shall conduct a feasibility assessment regarding the impact, on Federal entities and operations in any of the following bands, of authorizing mobile or fixed terrestrial wireless operations, including for advanced mobile service operations, in the following bands: (1) The band between 31800 and 33400 megahertz. (2) The band between 71000 and 76000 megahertz. (3) The band between 81000 and 86000 megahertz. (b) Requirements In conducting the feasibility assessment under subsection (a), the NTIA shall— (1) consult directly with Federal entities with respect to frequencies allocated to Federal use by such entities in the bands identified in that subsection; (2) consider what, if any, impact authorizing mobile or fixed terrestrial wireless operations, including advanced mobile services operations, in any of such frequencies would have on an affected Federal entity