The Provision of the Interpretation Act 1971 defines the “Nauruan territorial waters" as:
That area of water, and the waters and subsoil beneath it, enclosed by a line every part of which is at a distance
of twelve miles from the nearest point of the outer edge of the reef surrounding the Island of Nauru which is exposed at low tide and, where there is an opening in the reef, from a straight line across the outer edge of that opening.
“Territorial Sea” means the waters having as their inner limits, the baseline and as their outer
limits, a line measured seaward from that baseline, every point of which is at a distance of
twelve (12) nautical miles from the nearest point of the baseline.
The Marine Zones (Declaration) Act 2011 repeals and replaces the Marine Zones (Declaration) Act 1983 and defines the baseline of the territorial sea, the 12 nautical mile territorial sea and the 200 nautical mile exclusive economic zone. http://www.un.org/Depts/los/LEGISLATIONANDTREATIES/PDFFILES/KIR_2011_Ac…
The Marine Zones (Declaration) Act 2011 repeals the Marine Zones (Declaration) Act 1983. It states that the territorial sea of Kiribati comprises those waters having, as their inner limits, the baseline of Kiribati and, as their outer limits, a line measured seaward from that baseline, every point of which is at a distance of twelve (12) nautical miles from the nearest point of the baseline.
Part 1 of the Tuvalu Maritime Zones Act 2012 states that the territorial sea comprises those areas of the sea having
(a) as their inner limits, the baseline, which is measured from the low-water line of the seaward side of the reef fringing the coast of any part of Tuvalu or bounding any lagoon waters adjacent to any part of that coast, or where a reef is not present, the low-water line of the coast itself and
(b) as their outer limits, a line measured seaward from that baseline, every point of which is distant 12 nautical miles from the nearest point of that baseline.
The Republic of the Marshall Islands Maritime Zones Declaration Act 2016 (Nitijela Bill No. 13) repeals the Marine Zones (Declaration) Act 1984 and underlines the delineation and demarcation of the Republic of Marshall Islands territorial sea. It further states that the territorial sea comprises of the sea having:
(a)as their inner limits, the baseline and
(b)as their outer limits, a line measured seaward from that baseline, every point of which is distant 12 nautical mils from the nearest point of that baseline.
The Maritime Zones Act 2013 states that the baseline of the territorial sea of Niue is measured from the low-water mark along the coast of Niue, or where there is a coral reef along any part of the coast of Niue, the low-water mark along the outer edge of the coral reef.
The territorial sea comprises those areas of the sea having, as their inner limits, the baseline and, as their outer limits, a line measured seaward from that baseline, every point of which is distant 12 nautical miles from the nearest point of the baseline.