Paragraph 1
Any reference, however worded—
(a)
in any enactment the provisions of which apply to, or operate in consequence of the operation of, any enactment amended by section 1; or
(b)
in any enactment relating to the sending of documents or other things otherwise than by registered post or to documents or other things so sent;
to the registered post or to a registered letter or packet, shall be construed as including a reference to the recorded delivery service or to a letter or packet sent by that service; and any reference, however worded, in any such enactment to a Post Office receipt for a registered letter or to an acknowledgment of or certificate of delivery of a registered letter shall be construed accordingly.