OpenHistoricalMap/Projects/Maritime Boundaries

Overview

The goal is to accurately map all maritime boundaries in order to mop up multiple duplicate boundary lines and to make the map prettier.

Historically most countries considered 3nm to be the maritime boundary of their nation. Between 1973-1982 the United Nations hosted multiple conventions to determine the future of maritime boundaries. This resulted in the United Nations Conference on the Law of the Sea (UNCLOS III) which came into effect in 1994.

Rules or suggestions

Where limits are not found for a country it should default to 3nm.

In order to give large empires or countries less members we map a separate 0.2nm extra or by default 3.2nm boundary so it doesn't get split so often.

On the boundary line I would usually add these tags: type=boundary, maritime=yes, name=3nm line - Denmark, and to make it even better you can add the end_date and start_date tags to the boundaries if you know exactly when the distance changed.

Example of 3nm, 3.2nm 4nm and 12nm boundary for Denmark.

How to map

On JOSM it is very easy to move multiple relations from one boundary to another by using the OpenData plugin. Select a boundary line and click on Ctrl + C (Copy) and then select the line you want the relations to be moved to and select More Tools > Paste Relations

With Shift + P you can select a boundary line and create a parallel duplicate line by dragging from the line to the new location. Look at the bottom panel to see how far you've dragged it. Click on the distance unit to change it to NM if it isn't already.

Read More

https://forum.openhistoricalmap.org/t/how-should-we-handle-territorial-waters-or-should-we-include-shorelines-in-boundaries/154/3

Territorial Maritime Claims of Countries

Africa

Country	Region	Completed	From/To Limit	Start Date	Source
Algeria	Mediterranean Sea		3nm-12nm	1963-10-12	Decree No. 63-403 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Angola	Atlantic Ocean		3nm-12nm	1992-08-28	Law 21/92 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Benin	Atlantic Ocean		3nm-12nm	1968-03	Decree No. 74 https://stjececmsdusgva001.blob.core.usgovcloudapi.net/public/documents/Benin2020.pdf
			12nm-200nm	1976-04-02	Decree No. 76-92 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1998-12	Benin claims 12nm boundary but doesn't list it with the UN https://stjececmsdusgva001.blob.core.usgovcloudapi.net/public/documents/Benin2020.pdf
Cameroon	Atlantic Ocean		3nm-50nm	1974-12-05	Law No. 74/16 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			50nm-12nm	2000-04	Law No. 2000-2 https://stjececmsdusgva001.blob.core.usgovcloudapi.net/public/documents/Cameroon_2024.pdf
Canary Islands	Atlantic Ocean		See Spain
Cape Verde	Atlantic Ocean		3nm-12nm	1977-12-31	Decree Law No. 126/77 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Comoros	Indian Ocean	Yes	3nm-12nm	1982-05-06	Law No. 82-005 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Congo	Atlantic Ocean		3nm-200nm	1977-12-20	Ordinance No. 049/77 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
DRC	Atlantic Ocean	Yes	3nm-12nm	1974-07-10	Law No. 74/009 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Côte d’Ivoire	Atlantic Ocean		3nm-12nm	1977-11-17	Law No. 77-926 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Djibouti	Arabian Sea		3nm-12nm	1979-01-09	Law 52/AN/798 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Egypt	Mediterranean Sea; Suez Gulf; Gulf of Aqaba		3nm-12nm	1958-02-17	Presidential Decree No. 180/1958 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Equatorial Guinea	Atlantic Ocean		3nm-12nm	1984-11-12	Act No. 15/1984 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Eritrea	Suez Gulf	Yes	See Ethiopia
Ethiopia	Suez Gulf	Yes	3nm-12nm	1991-09-15	Proclamation No. 7 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Gabon	Atlantic Ocean		3nm-12nm	1984-07-12	Law No. 9/84 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Ghana	Atlantic Ocean		3nm-12nm	1986-08-02	Maritime Zones Law https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Guinea	Atlantic Ocean		3nm-12nm	1980-07-30	Decree No. 336/PRG/80 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Guinea-Bissau	Atlantic Ocean		3nm-12nm	1978-05-19	Law No. 3/78 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Kenya	Indian Ocean		3nm-12nm	1972-05-16	Territorial Waters Act No. 2 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Liberia	Atlantic Ocean		3nm-200nm	1977-02-16	Act to Approve Executive Order of Dec. 24, 1976 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	2013-01-10	Executive Order No. 39 https://www.un.org/depts/los/LEGISLATIONANDTREATIES/PDFFILES/LBR_10Jan2013_Act_EO48.pdf
Libya	Mediterranean Sea		3nm-12nm	1959-02-18	Territorial Waters Act No. 2 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Madagascar	Indian Ocean		3nm-12nm	1985-09-21	Ordinance No. 85-013 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Mauritania	Atlantic Ocean		3nm-12nm	1988-08-31	Ordinance 88-120 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Mauritius	Indian Ocean		3nm-12nm	1970-04-16	Territorial Seas Act https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Mayotte	Indian Ocean	Yes	See France
Morocco	Mediterranean Sea; Atlantic Ocean		3nm-12nm	1973-03-02	Law 1-73-211 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Mozambique	Indian Ocean		3nm-12nm	1976-08-19	Decree Law No. 31/76 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Namibia	Atlantic Ocean		3nm-12nm	1990-06-30	Act No. 03 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Nigeria	Atlantic Ocean		3nm-30nm	1971-08-26	Territorial Waters Decree No. 38 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			30nm-12nm	1998-01-01	Territorial Waters Decree 19978 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Reunion	Indian Ocean	Yes	See France
Saint Helena and Dependencies	Atlantic Ocean		3nm-12nm	1990-01-01	St. Helena and Dependencies (Territorial Sea) Order 1989 https://www.legislation.gov.uk/uksi/1989/1994/article/1/made
Sao Tome and Principe	Atlantic Ocean		3nm-12nm	1998-03-23	Act No. 1/98 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Senegal	Atlantic Ocean		3nm-12nm	1985-02-25	Law 85-14 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Seychelles	Indian Ocean		3nm-12nm	1977-08-01	Maritime Zones Act No. 15 of 1977 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Sierra Leone	Atlantic Ocean		3nm-200nm	1971-04-19	Interpretations Act, 1971 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1996-06-06	The Maritime Zones Decree 1996 https://www.sierra-leone.org/Laws/1996-NPRC11.pdf
Somalia	Indian Ocean		3nm-12nm	1966-11-01	Decree Law No. 7 http://www.somalilandlaw.com/maritime_law.htm
			12nm-200nm	1972-09-10	Law No. 37 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1989-01-26	Law No. 5 http://www.somalilandlaw.com/maritime_law.htm
South Africa	Indian Ocean		3nm-12nm	1994-11-11	Maritime Zones Act, 1994, No. 15 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Sudan	Suez Gulf		3nm-12nm	1960-08-02	Council of Minister's Resolution No. 1047 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Tanzania	Indian Ocean		3nm-12nm	1989-10-15	Territorial Sea and Exclusive Economic Zone Act, 1989 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Togo	Atlantic Ocean	Yes	3nm-30nm	1977-08-16	Ordinance No. 24 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Tunisia	Mediterranean Sea		3nm-12nm	1973-02-02	Law 73-49 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
The Gambia	Atlantic Ocean		3nm-12nm	1969-07-10	Act No. 9 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf

Asia

Country	Region	Completed	From/To Limit	Start Date	Source
Azerbaijan	Caspian Sea Sea
Bahrain	Persian GulfPersian Gulf
British Indian Ocean Territory	Indian Ocean		3nm		Still only claims 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Brunei	Pacific Ocean
Cambodia	Pacific Ocean
China	Pacific Ocean
Georgia	Black Sea
Hong Kong British	Pacific Ocean		See the United Kingdom
Hong Kong	Pacific Ocean
India	Indian Ocean
Indonesia	Pacific Ocean
Iran	Persian Gulf; Indian Ocean
Iraq	Persian Gulf
Israel	Mediterranean Sea; Gulf of Aqaba
Japan	Pacific Ocean
Jordan	Gulf of Aqaba		3nm		Still only claims 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Kazakhstan	Caspian Sea
North Korea	Pacific Ocean
Russia	Pacific Ocean; Arctic Ocean		See Europe Table
South Korea	Pacific Ocean

Europe

Country	Region	Completed	From/To Limit	Start Date	Source
Akrotiri and Dhekelia	Mediterranean Sea	Yes	3nm		Never enlarged
Albania	Mediterranean Sea		3nm-15nm	1976-02-23	Decree No. 5384 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			15nm-12nm	1990-03-24	Decree No. 7366 of March 9, 1990 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Croatia	Mediterranean Sea
Cyprus	Mediterranean Sea
Denmark	Baltic Sea; Atlantic Ocean	Yes	4nm-3nm	1874	https://www.jstor.org/stable/2189474
		Yes	?-3nm	1966-12-21	(Reaffirmed or updated?) Baseline segments in European Datum System: https://www.retsinformation.dk/eli/lta/1966/437
		Yes	3nm-12nm	1999-05-01	May 1999 Act No. 200 on the Delimitation of the Territorial Sea (Does not apply to Greenland and Faroe Islands) https://www.un.org/Depts/los/LEGISLATIONANDTREATIES/PDFFILES/DNK_1999_Act.pdf Coastline and straight line segments defined in WGS84: https://www.retsinformation.dk/eli/lta/1999/242 (danish)
Estonia	Baltic Sea	Yes	12nm		3nm pre Soviet-era 12nm as Latvia SSR and 3nm between Latvia and Estonia until 1996 post-Soviet. https://iilss.net/maritime-boundaries-between-latvia-and-estonia/
Faroe islands	Atlantic Ocean		See Denmark
Finland	Baltic Sea; Arctic Ocean
France	Atlantic Ocean	Yes	3nm-12nm
Germany	Baltic Sea; Atlantic Ocean	Yes	12nm	1994-11-11	https://www.un.org/depts/los/LEGISLATIONANDTREATIES/PDFFILES/mzn_s/mzn1.pdf
Gibraltar	Mediterranean Sea				Still only claims 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Greece	Mediterranean Sea	Yes	3nm-6nm	1936-09-17	https://opil.ouplaw.com/display/10.1093/law:epil/9780199231690/law-9780199231690-e1240?p=emailA/MsQAG3uZBM.&d=/10.1093/law:epil/9780199231690/law-9780199231690-e1240&print#
Greece	Mediterranean Sea	Yes	6nm-partial 12nm	2021-01-20	Law No. 4767 https://greekcitytimes.com/2021/01/21/extension-waters-ionian-sea-ratified/ https://stjececmsdusgva001.blob.core.usgovcloudapi.net/public/documents/Greece2021.pdf
Guernsey	Atlantic Ocean	Yes	3nm-12nm		The Territorial Sea Act 1987 https://www.legislation.gov.uk/uksi/2019/1108/article/2/made
Iceland	Atlantic Ocean	Yes	4nm-12nm	1979-06-01	4nm inherited from Denmark. https://faolex.fao.org/docs/pdf/ice1316.pdf
Ireland	Atlantic Ocean	Yes	3nm-12nm	2006-04-04	In 1959 they signed the 3nm boundary. https://www.irishstatutebook.ie/eli/1959/act/22/section/3/enacted/en/html#sec3 And then 12nm in 2006 https://www.un.org/Depts/los/doalos_publications/LOSBulletins/bulletinpdf/bulletin62e.pdf
Isle of Man	Atlantic Ocean		3nm-12nm	1991-09-02	Territorial Sea Act 1987 (Isle of Man) Order 1991 https://www.legislation.gov.uk/uksi/1991/1722/article/1/made
Italy	Mediterranean Sea
Jersey	Atlantic Ocean		3nm-12nm	1997-03-31	Territorial Sea Act 1987 (Jersey) Order 1997 https://www.legislation.gov.uk/uksi/1997/278/article/1/made
Latvia	Baltic Sea	Yes	12nm	1996-07-12	3nm pre Soviet-era 12nm as Latvia SSR and 3nm between Latvia and Estonia until 1996 post-Soviet. https://iilss.net/maritime-boundaries-between-latvia-and-estonia/
Lithuania	Baltic Sea	Yes	12nm	1992-06-25	Inherited from USSR and ratified in 1992 https://faolex.fao.org/docs/pdf/lit22373.pdf
Norway	Atlantic Ocean; Arctic Ocean	Yes	4nm-12nm	2004-01-01	https://core.ac.uk/download/pdf/228446825.pdf
Poland	Baltic Sea	Yes	12nm	1991-03-21	https://www.un.org/depts/los/LEGISLATIONANDTREATIES/PDFFILES/POL_1991_Act.pdf
Russia	Baltic Sea; Arctic Ocean; Caspian Sea		3nm-12nm	1960-02-21	https://docs.rwu.edu/cgi/viewcontent.cgi?article=2465&context=law_ma_jmlc
The Netherlands	Atlantic Ocean	Yes	3nm-12nm
Sweden	Baltic Sea	Yes	4nm-12nm	1980-01-01	https://repository.law.umich.edu/cgi/viewcontent.cgi?article=1739&context=mjil
United Kingdom	Atlantic Ocean		3nm-12nm	1987-05-15	Territorial Sea Act 1987 https://www.legislation.gov.uk/ukpga/1987/49/introduction

North America

Country	Region	Completed	From/To Limit	Start Date	Source
Anguilla	Caribbean Sea	Yes	Median	1996-06-27	Agreement on Maritime Delimitation of 27 June 1996 Boundary established between Anguilla and Saint Martin and Saint Barthelemy https://www.legislation.gov.uk/uksi/2007/2916/made#:~:text=This%20Order%20extends%20the%20boundaries%20of%20the,Martin%20and%20Saint%20Barthelemy%2C%20on%20the%20other.
		Yes	3nm-12nm	2007-10-31	https://www.legislation.gov.uk/uksi/2007/2916/made#:~:text=This%20Order%20extends%20the%20boundaries%20of%20the,Martin%20and%20Saint%20Barthelemy%2C%20on%20the%20other.
Antigua and Barbuda	Caribbean Sea	Yes	3nm-12nm	1982-08-17	Maritime Areas Act, 1982, Act No. 18 of 17 August 1982(1)
Aruba	Caribbean Sea	Yes	See The Netherlands
Barbados	Caribbean Sea	Yes	3nm-12nm	1977-06-23	Territorial Waters Act, 1977-No. 26 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Belize	Caribbean Sea	Yes	3nm-12nm	1992-01-24	Maritime Areas Act 1982 https://www.oas.org/sap/peacefund/belizeandguatemala/timelinedocuments/1992-April3-StatementbyMinisterofForeignAffairsofBelizeSaidMusa.pdf
Bermuda	Caribbean Sea	Yes	3nm-12nm	1988-11-28	Bermuda (Territorial Sea) Order in Council 1988 https://www.legislation.gov.uk/uksi/1988/1838/made
British Virgin Islands	Caribbean Sea	Yes	3nm-12nm	2007-08-15	Virgin Islands (Territorial Sea) Order 2007 https://www.legislation.gov.uk/uksi/2007/2141/article/1/made
Canada	Atlanic Ocean; Pacific Ocean; Arctic Ocean		3nm-12nm	1970-06-26	Amended Territorial Sea and Fishery Zones Act https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			12nm	1974-03-13	Limits in the Seas No 72 Establishes the boundary between Canada and Greenland https://www.state.gov/wp-content/uploads/2019/11/LIS-72.pdf
Cayman Islands	Caribbean Sea	Yes	3nm-12nm	1990-01-01	Cayman Islands (Territorial Sea) Order 1989 https://www.legislation.gov.uk/uksi/1989/2397/article/1/made
Costa Rica	Pacific Ocean; Caribbean Sea	Yes	3nm-12nm	1975-06-05	Decree No. 5699 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Cuba	Caribbean Sea	Yes	3nm-12nm	1978-01-01	https://www.state.gov/wp-content/uploads/2019/12/LIS-110.pdf
Curacao	Caribbean Sea	Yes	See The Netherlands
Dominica	Caribbean Sea	Yes	3nm-12nm	1981-08-25	Territorial Sea, Contiguous Zone, Exclusive Economic and Fishery Zones Act, 1981 Act No. 26 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Dominican Republic	Caribbean Sea	Yes	3nm-6nm	1967-09-13	Law No. 186 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
		Yes	6nm-12nm	2007-05-22	Act 66-07, 22 May 2007 https://www.un.org/depts/los/LEGISLATIONANDTREATIES/PDFFILES/DOM_2007_Act_frombulletin65.pdf
El Salvador	Pacific Ocean	Yes	3nm-200nm	1950-07-09	Constitution, Article 7 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf El Salvador has never ratified the 12nm UNCLOS treaty, and thus I believe them to still have a valid 200nm claim even though other coutnries don't recognize it.
		Yes	200nm-12nm	2004-12	Civil Code (Article 574) : Rolled back territorial sea from 200nm to 12nm https://stjececmsdusgva001.blob.core.usgovcloudapi.net/public/documents/el_salvador_2014.pdf
Greenland	Atlantic Ocean; Arctic Ocean	Yes	3nm		Greenland still only claims a 3nm boundary https://www.sjorettsfondet.no/journal/2020/535/m-1029 https://msi.admiralty.co.uk/nms/annual/12.pdf
		Yes	3nm	1974-03-13	Limits in the Seas No 72 Establishes the boundary between Canada and Greenland https://www.state.gov/wp-content/uploads/2019/11/LIS-72.pdf
Grenada	Caribbean Sea	Yes	3nm-12nm	1978-11-01	Territorial Waters Act No. 17 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Guadeloupe	Caribbean Sea	Yes	See France
Guatemala	Pacific Ocean;	Yes	3nm-12nm	1976-07-01	Decree No. 20-76 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
	Caribbean Sea	Yes	Median	1992-01-24	Belize defines it's Maritime boundaries
Haiti	Caribbean Sea	Yes	3nm-12nm	1977-04-08	Decree No. 38 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Honduras	Pacific Ocean; Caribbean Sea	Yes	3nm-12nm	2007-10-08	ICJ defines the Caribbean maritime boundary https://www.icj-cij.org/case/120
Jamaica	Caribbean Sea	Yes	3nm-12nm	1971-07-19	Act No. 14 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Martinique	Caribbean Sea	Yes	See France
Montserrat	Caribbean Sea	Yes	3nm		Still only claims 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Nicaragua
Puerto Rico	Caribbean Sea	Yes	See the United States
Saint Lucia	Caribbean Sea	Yes	3nm-12nm	1984-07-18	Maritime Areas Act No. 6 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Saint Kitts and Nevis	Caribbean Sea	Yes	3nm-12nm	1984-08-30	Maritime Act No. 3 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Saint Barthelemy	Caribbean Sea	Yes	See France
Saint Martin		Yes	See France
Saint Vincent and the Grenadines	Caribbean Sea	Yes	3nm-12nm	1983-06-08	Act No. 15 of 1983 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Sint Maarten	Caribbean Sea	Yes	See the Netherlands
The Bahamas	Caribbean Sea	Yes	3nm-12nm	1996-01-04	Archipelagic Waters and Maritime Jurisdiction Act, 1993 (No. 37 of 1993) https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Trinidad and Tobago	Caribbean Sea	Yes	3nm-12nm	1969-12-06	Territorial Sea Act No. 38 Territorial Sea (Amendment) https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Turks and Caicos	Caribbean Sea	Yes	3nm-12nm	1990-01-01	Turks and Caicos Islands (Territorial Sea) Order 1989 https://www.legislation.gov.uk/uksi/1989/1996/article/1/made
United States	Pacific Ocean; Atlantic Ocean; Arctic Ocean	Yes		1972-04-18	Boundary agreement with Mexico to 12 nm EIF; see LIS No. 45. https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
		Yes	3nm-12nm	1988-12-27	Presidential Proclamation No. 5928 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
United States Virgin Islands	Caribbean Sea	Yes	See the United States

Oceania

Country	Region	Completed	From/To Limit	Start Date	Source
American Samoa	Pacific Ocean		See the United States
Australia	Pacific Ocean; Indian Ocean
Cocos Islands	Pacific Ocean		See Australia
Cook Islands	Indian Icean		See Australia
Fiji	Pacific Ocean
French Polynesia	Pacific Ocean		See France
Guam	Pacific Ocean		See the United States
Kiribati	Pacific Ocean
Pitcairn	Pacific Ocean		3nm		Still only claims 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Timor-Leste	Pacific Ocean

South America

Country	Region	Completed	From/To Limit	Start Date	Source
Argentina	Atlantic Ocean		3nm-200nm	1967-01-19	Law No. 17,094 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1991-09-13	Act No. 23,968 of August 14, 1991 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Brazil	Atlantic Ocean		3nm-200nm	1970-03-27	Decree Law No. 1098 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1993-01-04	Law No. 8617 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
British Antarctic Territory	Atlantic Ocean		3nm		Antarctic territories still keep 3nm https://msi.admiralty.co.uk/nms/annual/12.pdf
Chile	Pacific Ocean		3nm-200nm	1952-08-18	Declaration on the maritime zone, 18 August 1952 https://www.un.org/Depts/los/LEGISLATIONANDTREATIES/PDFFILES/TREATIES/CHL-ECU-PER1952MZ.PDF
			200nm-12nm	1986-10-26	Law No. 18.565 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Colombia	Pacific Ocean; Caribbean Sea		3nm-12nm	1978-08-04	Law No. 10 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Ecuador	Pacific Ocean		3nm-200nm	1966-11-10	Decree Law No. 1542 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf See map and other articles here https://www.un.org/Depts/los/LEGISLATIONANDTREATIES/STATEFILES/ECU.htm
Falkland Islands	Atlantic Ocean		3nm-12nm	1990-01-01	Falkland Islands (Territorial Sea) Order 1989 https://www.legislation.gov.uk/uksi/1989/1993/article/1/made
French Guiana	Atlantic Ocean		See France
Guyana	Atlantic Ocean		3nm-12nm	1977-06-30	Maritime Boundaries Act No. 10 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Peru	Pacific Ocean		3nm-200nm	1947-08-01	Supreme Decree https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
South Georgia and the South Sandwich Islands	Atlantic Ocean		3nm-12nm	1990-01-01	South Georgia and South Sandwich Islands (Territorial Sea) Order 1989 https://www.legislation.gov.uk/uksi/1989/1995/article/1/made
Suriname	Atlantic Ocean		3nm-12nm	1978-06-11	Act No. 26 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Uruguay	Atlantic Ocean		3nm-200nm	1969-12-03	Decree 604/969 and Ordinance 1983 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
			200nm-12nm	1998-11-20	Act No. 17.033 https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf
Venezuela	Atlantic Ocean; Caribbean Sea		3nm-12nm	1956-07-27	Territorial Sea Law https://www.state.gov/wp-content/uploads/2020/01/LIS-36.pdf