For purposes of sections
58a–1 to
58a–3 of this title, telephone equipment and services provided to any user for which payment, prior to October 1, 1987, was not authorized from the contingent fund of the Senate shall, on and after October 1, 1987, be considered telephone equipment and services provided on a reimbursable basis for which payment may be obtained from such fund in accordance with subsection (a) of this section.