51. TfL must within 7 days after the completion of any sale, agreement or other transaction under article 59 (transfer of benefit of Order, etc.) in relation to which any powers, rights and obligations of TfL are transferred to another party, notify the PLA in writing, and the notice must include particulars of the other party to the transaction under article 59, the general nature of the transaction and details of the extent, nature and scope of the works or functions sold, transferred or otherwise dealt with.