; (2) such assets represent a considerable investment of United States taxpayers; and (3) it is in the national interest of the United States to facilitate opportunities to provide for the protection of such assets. (b) Review Not later than 30 days after the Secretary issues a certification under chapter 801, the Secretary shall review the operations of any space objects covered by the certification to determine whether the interaction between such operations and the operations of a Federal Government space object present a substantial risk to the physical safety of a space object operated by either party. (c) Requirement To participate in consultation If the Secretary makes a determination that a substantial risk identified under subsection (b) exists, the Secretary may require that the certification holder participate in a consultation under this section. (d) Parties to a consultation (1) In general A consultation under this section may be held, with respect to a substantial safety risk identified under subsection (b), between— (A) a certification holder responsible for the certified space object operations; and (B) any entity of the Federal Government operating a potentially affected space object. (2) Participation The Secretary may not impose any requirement on a party pursuant to participation in the consultation. (e) Mitigation of safety risk In carrying out a consultation, the Secretary shall— (1) facilitate a discussion among the parties to the consultation; (2) encourage a mutual understanding of the safety risk; and (3) encourage, to the maximum extent practicable, voluntary agreements between the parties to the consultation to improve the physical safety of affected space object operations or mitigate the physical safety risk. (f) Duration of consultation; notice Not later than 90 days after the Secretary requires a consultation under this section, the Secretary shall— (1) complete all activities related to the consultation