47 U.S.C. § 927 — Existing allocation and transfer authority retained

(a) Additional reallocation Nothing in this subchapter prevents or limits additional reallocation of spectrum from the Federal Government to other users. (b) Implementation of new technologies and services Even if another rule in this subchapter says otherwise (1) the Secretary may, consistent with section 903(e) of this title , at any time allow frequencies allocated on a primary basis for Federal Government use to be used by non-Federal licensees on a mixed-use basis to facilitating the prompt implementation of new technologies or services and for other purposes; and (2) the Commission must make any allocation and licensing decisions for such frequencies in a timely manner and in no event later than the date required by section 157 of this title .