In the case of any such designation referred to in subsection (a) involving a day care center established for the benefit of children of Members and employees of the Senate, the designation shall be with the approval of the Senate Committee on Rules and Administration, and in the case of such a center established for the benefit of children of Members and employees of the House of Representatives, the designation shall be with the approval of the House Committee on House Oversight, with the concurrence of the House Office Building Commission.

The Architect of the Capitol shall enclose with a fence any area designated pursuant to subsection (a) as a play area.

The authority to use an area designated pursuant to subsection (a) as a play area may be terminated at any time by the Committee which approved such designation.