((a)) ** In general** Except as provided under subsection (b), no part of the Capitol Visitor Center may be designated or named without the approval of—

((1)) not less than ¾ of all members on the Capitol Preservation Commission who are members of the Democratic party; and

((2)) not less than ¾ of all members on the Capitol Preservation Commission who are members of the Republican party.

((b)) ** Exception** Subsection (a) shall not apply to any room or space under the jurisdiction of the Senate or the House of Representatives.