; (2) the Committee on Appropriations of the Senate ; (3) the Committee on Foreign Affairs of the House of Representatives ; and (4) the Committee on Appropriations of the House of Representatives . (e) Waiver The notification requirement under subsection (d) may be waived if— (1) failure to do so would pose a substantial risk to human health or welfare; and (2) the congressional committees set forth in subsection (d)— (A) are notified not later than three days after an obligation of funds; and (B) are provided with an explanation of the emergency circumstances that necessitated the waiver.