conducting oversight, any facility operated by or for the Department of Homeland Security used to detain or otherwise house aliens, or to make any temporary modification at any such facility that in any way alters what is observed by a visiting member of Congress or such designated employee, compared to what would be observed in the absence of such modification: (1) A Member of Congress. (2) An employee of the United States House of Representatives or the United States Senate designated by such a Member for the purposes of this section. (b) Nothing in this section may be construed to require a Member of Congress to provide prior notice of the intent to enter a facility described in subsection (a) for the purpose of conducting oversight. (c) With respect to individuals described in subsection (a)(2), the Department of Homeland Security may require that a request be made at least 24 hours in advance of an intent to enter a facility described in subsection (a). 529. (a) Except as provided in subsection (b), none of the funds made available to the Department of Homeland Security may be used to place restraints on a woman in the custody of the Department of Homeland Security (including during transport, in a detention facility, or at an outside medical facility) who is pregnant or in post-delivery recuperation. (b) Subsection (a) shall not apply with respect to a pregnant woman if— (1) an appropriate official of the Department of Homeland Security makes an individualized determination that the woman— (A) is a serious flight risk, and such risk cannot be prevented by other means