TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
TERRITORIAL SEA BASELINE [7 records]
Record 1 - internal organization data 2023-06-09
Record 1, English
Record 1, Subject field(s)
- Law of the Sea
- Maritime Law
- Water Transport
Record 1, Main entry term, English
- maritime zone
1, record 1, English, maritime%20zone
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The maritime zones recognized under international law include internal waters, the territorial sea, the contiguous zone, the exclusive economic zone, the continental shelf, the high seas and the Area. With the exception of the high seas and the Area, each of these maritime zones is measured from the baseline[, ] determined in accordance with customary international law as reflected in the 1982 Law of the Sea Convention. 2, record 1, English, - maritime%20zone
Record number: 1, Textual support number: 1 OBS
maritime zone: designation usually used in the plural. 3, record 1, English, - maritime%20zone
Record 1, Key term(s)
- maritime zones
Record 1, French
Record 1, Domaine(s)
- Droit de la mer
- Droit maritime
- Transport par eau
Record 1, Main entry term, French
- zone maritime
1, record 1, French, zone%20maritime
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
zone maritime : désignation habituellement utilisée au pluriel. 2, record 1, French, - zone%20maritime
Record 1, Key term(s)
- zones maritimes
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2022-11-03
Record 2, English
Record 2, Subject field(s)
- Law of the Sea
- Maritime Law
Record 2, Main entry term, English
- contiguous zone
1, record 2, English, contiguous%20zone
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
... a band of water extending farther from the outer edge of the territorial sea to up to 24 nautical miles... from the baseline, within which a state can exert limited control for the purpose of preventing or punishing infringement of its customs, fiscal, immigration or sanitary laws and regulations within its territory or territorial sea. 2, record 2, English, - contiguous%20zone
Record number: 2, Textual support number: 1 OBS
Under the 1982 United Nations Convention on the Law of the Sea, the contiguous zone may not extend beyond twenty-four miles from the baselines of territorial sea. 3, record 2, English, - contiguous%20zone
Record 2, French
Record 2, Domaine(s)
- Droit de la mer
- Droit maritime
Record 2, Main entry term, French
- zone contiguë
1, record 2, French, zone%20contigu%C3%AB
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Bande maritime s'étendant au-delà de la mer territoriale [...] sur laquelle l'État côtier exerce des compétences fragmentaires pour sa protection douanière, fiscale, sanitaire, militaire. 2, record 2, French, - zone%20contigu%C3%AB
Record number: 2, Textual support number: 1 OBS
En vertu de la Convention sur la mer territoriale et la zone contiguë, la largeur maximale de la zone contiguë est fixée à 12 milles à partir de la ligne de base utilisée pour mesurer la largeur de la mer territoriale. Sa largeur maximale est de 24 milles en fonction de la Convention des Nations Unies sur le droit de la mer. 3, record 2, French, - zone%20contigu%C3%AB
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Derecho del mar
- Derecho marítimo
Record 2, Main entry term, Spanish
- zona contigua
1, record 2, Spanish, zona%20contigua
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
[...] extensión de mar adyacente al mar territorial que abarca desde el límite exterior del mar territorial hasta las 24 millas marinas contadas desde la línea de base a partir de la cual se mide la anchura del mar territorial[,] en esta franja de agua, el Estado ribereño no tiene soberanía, sino que sus derechos están determinados solo en materia aduanera, sanitaria, fiscal y migratoria. 2, record 2, Spanish, - zona%20contigua
Record 3 - internal organization data 2020-08-04
Record 3, English
Record 3, Subject field(s)
- Law of the Sea
Record 3, Main entry term, English
- territorial sea baseline
1, record 3, English, territorial%20sea%20baseline
correct
Record 3, Abbreviations, English
- TBS 2, record 3, English, TBS
correct
Record 3, Synonyms, English
- baseline of territorial sea 3, record 3, English, baseline%20of%20territorial%20sea
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The line from which the seaward limits of [a state’s] maritime zones are measured. 2, record 3, English, - territorial%20sea%20baseline
Record 3, French
Record 3, Domaine(s)
- Droit de la mer
Record 3, Main entry term, French
- ligne de base de la mer territoriale
1, record 3, French, ligne%20de%20base%20de%20la%20mer%20territoriale
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2015-03-13
Record 4, English
Record 4, Subject field(s)
- Oceanography
- Maritime Law
Record 4, Main entry term, English
- low-water line
1, record 4, English, low%2Dwater%20line
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- low water line 2, record 4, English, low%20water%20line
correct
- low-water mark 3, record 4, English, low%2Dwater%20mark
correct
- low watermark 4, record 4, English, low%20watermark
correct
- low water mark 5, record 4, English, low%20water%20mark
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The normal baseline from which the width of the territorial sea is measured is the low-water line(i. e. the line on the shore reached by the sea at low tide), and this rule is reaffirmed in Art. 3 of the Geneva Convention on the Territorial Sea, 1958. 6, record 4, English, - low%2Dwater%20line
Record 4, French
Record 4, Domaine(s)
- Océanographie
- Droit maritime
Record 4, Main entry term, French
- laisse de basse mer
1, record 4, French, laisse%20de%20basse%20mer
correct, feminine noun, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
- niveau de basse mer 2, record 4, French, niveau%20de%20basse%20mer
masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Ligne correspondant soit à la moyenne de toutes les basses mers, soit à la moyenne des basses mers de vives eaux, soit à la plus basse mer. 2, record 4, French, - laisse%20de%20basse%20mer
Record number: 4, Textual support number: 1 CONT
Sauf disposition contraire [...] la ligne de base normale servant à mesurer la largeur de la mer territoriale est la laisse de basse mer longeant la côte, telle qu'elle est indiquée sur les cartes marines à grande échelle reconnues officiellement par l'État riverain. 3, record 4, French, - laisse%20de%20basse%20mer
Record number: 4, Textual support number: 1 OBS
Contexte tiré de l'Art. 3 de la Convention sur la mer territoriale et la zone contiguë. 4, record 4, French, - laisse%20de%20basse%20mer
Record number: 4, Textual support number: 2 OBS
laisse de basse mer : terme uniformisé par le Groupe de travail de terminologie du génie. 5, record 4, French, - laisse%20de%20basse%20mer
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Oceanografía
- Derecho marítimo
Record 4, Main entry term, Spanish
- línea de baja mar
1, record 4, Spanish, l%C3%ADnea%20de%20baja%20mar
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
[Línea que corresponde al] nivel de las aguas en la bajamar. 1, record 4, Spanish, - l%C3%ADnea%20de%20baja%20mar
Record 4, Key term(s)
- línea de marea baja
Record 5 - internal organization data 2010-05-04
Record 5, English
Record 5, Subject field(s)
- Law of the Sea
- Geomorphology and Geomorphogeny
Record 5, Main entry term, English
- low-tide elevation 1, record 5, English, low%2Dtide%20elevation
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
A low-tide elevation is a naturally formed area of land which is surrounded by and above water at low tide but submerged at high tide. Where a low-tide elevation is situated wholly or partly at a distance not exceeding the breadth of the territorial sea from the mainland or an island, the low-water line on that elevation may be used as the baseline for measuring the breadth of the territorial sea. Where a low-tide elevation is wholly situated at a distance exceeding the breadth of the territorial sea from the mainland or an island, it has no territorial sea of its own. 1, record 5, English, - low%2Dtide%20elevation
Record 5, French
Record 5, Domaine(s)
- Droit de la mer
- Géomorphologie et géomorphogénie
Record 5, Main entry term, French
- haut-fond découvrant
1, record 5, French, haut%2Dfond%20d%C3%A9couvrant
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Élévation naturelle de terrain entourée par la mer, découverte à marée basse, recouverte à marée haute. 1, record 5, French, - haut%2Dfond%20d%C3%A9couvrant
Record number: 5, Textual support number: 1 CONT
En principe, un haut-fond découvrant ne peut être retenu comme point de référence pour l'établissement de la ligne de base de la mer territoriale. 1, record 5, French, - haut%2Dfond%20d%C3%A9couvrant
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2004-11-15
Record 6, English
Record 6, Subject field(s)
- Geomorphology and Geomorphogeny
Record 6, Main entry term, English
- skjaergaard
1, record 6, English, skjaergaard
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
... the offshore chain of some 150, 000 islands, islets, rocks and skerries that marks the baseline for Norway's territorial sea and exclusive economic zone. 2, record 6, English, - skjaergaard
Record number: 6, Textual support number: 1 CONT
... the west coast of Norway, where the coastline is cut into by fjords and there are many small islands off the coast (known as the "skjaergaard"). 3, record 6, English, - skjaergaard
Record number: 6, Textual support number: 1 OBS
(literally, rock rampart). 4, record 6, English, - skjaergaard
Record number: 6, Textual support number: 2 OBS
(Pronounced ... SCARE-guard). 2, record 6, English, - skjaergaard
Record 6, French
Record 6, Domaine(s)
- Géomorphologie et géomorphogénie
Record 6, Main entry term, French
- skjärgaard
1, record 6, French, skj%C3%A4rgaard
masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- skjärgard 1, record 6, French, skj%C3%A4rgard
masculine noun
- skjaergaard 2, record 6, French, skjaergaard
masculine noun
- jardin d'écueils 3, record 6, French, jardin%20d%27%C3%A9cueils
masculine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
[...] ce qui constitue réellement la côte norvégienne, c'est la ligne extérieure du «skjaergaard». 2, record 6, French, - skj%C3%A4rgaard
Record number: 6, Textual support number: 1 OBS
skjaergaard : terme emprunté au norvégien. 4, record 6, French, - skj%C3%A4rgaard
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1999-10-07
Record 7, English
Record 7, Subject field(s)
- Law of the Sea
Record 7, Main entry term, English
- method of straight baselines
1, record 7, English, method%20of%20straight%20baselines
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- system of straight baselines 2, record 7, English, system%20of%20straight%20baselines
correct
- headland theory 3, record 7, English, headland%20theory
correct
- headland to headland principle 4, record 7, English, headland%20to%20headland%20principle
correct
- straight base-line method 5, record 7, English, straight%20base%2Dline%20method
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
... In certain geographical circumstances it is permissible to draw straight lines across the sea on a map, form headland to headland, or from island to island, and to measure the territorial sea from those straight lines. Art. 4 of the Geneva Convention [on the territorial sea] provides :"1. In localities where the coastline is deeply indented and cut into, or if there is a fringe of islands along the coast in its immediate vicinity, the method of straight baselines joining appropriate points may be employed in drawing the baseline from which the breadth of the territorial sea is measured. 1, record 7, English, - method%20of%20straight%20baselines
Record number: 7, Textual support number: 2 CONT
Formerly, the English Kings claimed jurisdiction over the sea areas between lines drawn from headland to headland round the British coasts. ... This method of drawing a line connecting headland’s on a coast and claiming the waters on the landward side of that line as territorial waters is very often referred to as hadland theory. 4, record 7, English, - method%20of%20straight%20baselines
Record number: 7, Textual support number: 3 CONT
... The canadian Government ... on July 23, 1964, passed legislation establishing a twelve-mile fishery zone to be applied in conjunction with a straight base line known as "the headland to headland principle". 4, record 7, English, - method%20of%20straight%20baselines
Record 7, French
Record 7, Domaine(s)
- Droit de la mer
Record 7, Main entry term, French
- méthode des lignes de base droites
1, record 7, French, m%C3%A9thode%20des%20lignes%20de%20base%20droites
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- méthode de tracé polygonal 2, record 7, French, m%C3%A9thode%20de%20trac%C3%A9%20polygonal
correct, feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Méthode qui, pour appliquer la règle de la laisse de basse mer [...] à la délimitation de la mer territoriale, choisit comme lignes de base, des lignes droites tirées d'un point de la côte à un autre et d'île en île de sorte que la limite extérieure de la mer territoriale est déterminée par des lignes droites parallèles aux premières et distantes de celles-ci de la largeur de la mer territoriale. 1, record 7, French, - m%C3%A9thode%20des%20lignes%20de%20base%20droites
Record number: 7, Textual support number: 1 OBS
Dénomination adoptée par Gidel, t. III, p. 505 pour désigner la méthode des lignes de base droites pour appliquer la règle de la laisse de basse mer en vue de la délimitation de la mer territoriale. 1, record 7, French, - m%C3%A9thode%20des%20lignes%20de%20base%20droites
Record 7, Spanish
Record 7, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: