A dedication made under section 16 may be amended by any person mentioned in subsection (1) of that section, so as to remove or relax any of the general restrictions in Schedule 2 in relation to any of the land to which the dedication relates.

Section 16(2) to (4) and regulations 4 to 6 shall apply to an amendment to a dedication as if references to a dedication were references to an amendment to a dedication.

A dedication previously made under section 16 (otherwise than by virtue of subsection (2A) of that section) in respect of land within subsection (2B) of that section may be amended by the persons by whom a dedication could be made, so as to provide that the land is dedicated as coastal margin for the purposes of subsection (2C) of that section.

Any exclusion or restriction under Chapter 2 of access by virtue of section 2(1) which has effect in relation to land which is within subsection (2B)(b) of section 16 immediately before it is dedicated as coastal margin shall cease to have effect at the time the dedication takes effect.