; and (ii) the request is limited only to modifications, or a class of modifications, that— (I) increase transmission capacity; (II) improve spectral efficiency, such as by improving compression technologies; or (III) otherwise do not substantially modify the space station (or space stations, considered collectively, if there is more than one such space station) authorized by the license. (C) Deemed granted If the Commission fails to grant a request (including any amendment to such request) made by a licensee under subparagraph (A) or (B) by the deadline specified in such subparagraph (including any extension of such deadline under paragraph (6) or subsection (m)), the request (including any amendment to such request) shall be deemed granted on the date on which the Commission receives a written notice by the licensee of the failure. (3) Emergency grant, renewal, or modification If the Commission finds that there are extraordinary circumstances requiring temporary operations in the public interest and that delay in the institution of such temporary operations would seriously prejudice the public interest, the Commission— (A) may grant a license described in subsection (b), a grant of market access described in subsection (c), or an authorization described in subsection (d), a modification of such a license, grant of market access, or authorization, or renewal of such a license, grant of market access, or authorization for a period not to exceed 180 days in a manner and upon the terms the Commission shall by rule prescribe in the case of an emergency found by the Commission involving— (i) danger to life or property; or (ii) an action that is necessary for the national defense or security of the United States; (B) shall include with a grant made under this paragraph a statement of the reasons of the Commission for making such grant; (C) may extend a grant made under this paragraph for periods not to exceed 180 days