4.—(1) Section 15 of the 2019 Act does not apply to a right granted by Crown Estate Scotland prior to 1 October 2020 to remove wild kelp from the seabed.
(2) For the purposes of paragraph (1), a right is treated as having been granted at the point at which the document conferring the right was fully executed.
(3) Paragraph (1) ceases to apply to a right if that right is extended or varied on or after 1 October 2020.