Section 23 subsection (1) provides that Part 4 of the Marine (Scotland) Act 2010 is amended as set out in Section 23.
	Section 23 subsection (2) makes corresponding technical amendments to the Marine (Scotland) Act 2010 as Section 20 subsection (2) makes to the Marine and Coastal Access Act 2009, namely:
Inserting section 21(3A), which sets out that an order under section 21(3) that adds to the list of licensable marine activities may designate the activity as activity added in contemplation of the UK’s obligations under (a) Part III of the BBNJ Agreement or (b) in respect of an activity that takes place in ABNJ, Part IV of the BBNJ Agreement.
Inserting section 21(3B), which specifies that the consequential and other related provision that may be made under section 165(1)(b) in respect of an order made under the existing power in section 21(3) adding a new licensable marine activity can include provision amending an enactment if the new activity has been designated under section 21(3A).
Inserting section 21(3C), which contains associated definitions of "area beyond national jurisdiction" and "the Biodiversity Beyond National Jurisdiction Agreement".
	Section 23 subsection (3) makes a technical amendment to Section 32 of the Marine (Scotland) Act to specify that, where an order under Section 32 applies to an activity that has been designated under section 21(3A), the consequential and other related provision that can be made under section 165(1)(b) includes provision amending an enactment whenever passed. Section 32 is the existing power to specify by order exemptions to the requirement for a marine licence.
	Section 23 subsection (4) adds a provision that the usual exemption for submarine cables does not prevent the application of Part 4 of the Marine (Scotland) Act 2010 to activity designated under Section 21(3A) of the Marine (Scotland) Act 2010.
Part 4 – Environmental Impact Assessments Section 23: Licensable marine activities