funds made available under this heading in this Act or prior Acts making appropriations for the Department of State, foreign operations and related programs shall include information (if known on the date of transmittal of such notification) on the use of notwithstanding authority: Provided further , That if subsequent to the notification of assistance it becomes necessary to rely on notwithstanding authority, the Committees on Appropriations should be informed at the earliest opportunity and to the extent practicable. Department of state Migration and refugee assistance For necessary expenses not otherwise provided for, to enable the Secretary of State to carry out the provisions of section 2(a) and (b) of the Migration and Refugee Assistance Act of 1962, and other activities to meet refugee and migration needs