This layer shows the 12M maritime zone for the Republic of Marshall Islands which is highlighted in the Marshall Islands Maritime Zone Act 2016.
In Part 3 of the The Maritime Zones Act 2013 states that the exclusive economic zone of Niue comprises those areas of the sea,
seabed and subsoil that are beyond and adjacent to the territorial sea having as their outer limits a line measured seaward from the baseline described in section 4, every point of which line is not more than 200 nautical miles from the nearest point of the baseline.
https://www.un.org/depts/los/LEGISLATIONANDTREATIES/PDFFILES/niu_mariti…
The World Database on Protected Areas (WDPA) is the most comprehensive global database of marine and terrestrial protected areas, updated on a monthly basis, and is one of the key global biodiversity data sets being widely used by scientists, businesses, governments, International secretariats and others to inform planning, policy decisions and management.