(1) Subject to subsection (2), where the Revenue Commissioners receive specified information in relation to a disclosable transaction under section 817E, 817F, 817G, 817H or 817L they shall, within 90 days after such receipt -
(a) assign a unique transaction number to the disclosable transaction and notify the promoter, or the person who entered into the transaction, as the case may be, of that transaction number, or
(b) determine whether or not the transaction was a disclosable transaction and notify the promoter, or person who entered into the transaction, as the case may be, accordingly.
(2) Where the Revenue Commissioners request supplemental information in relation to a transaction under section 817K, the reference in subsection (1) to 90 days after receipt of the specified information shall be construed as a reference to 90 days after the day on which the Revenue Commissioners receive all such supplemental information.