of appropriations There is authorized to be appropriated funds to the extent and in such amounts as specifically provided in advance in appropriations acts for the purposes detailed in this section. (2) Availability in general Subject to paragraph (1), the Director of National Intelligence shall make available to the Commission such amounts as the Commission may require for purposes of the activities of the Commission under this section. (3) Duration of availability Amounts made available to the Commission under paragraph (2) shall remain available until expended or upon termination under subsection (i)(2), whichever occurs first. (m) Congressional intelligence committees defined In this section, the term congressional intelligence committees means— (1) the Select Committee on Intelligence of the Senate