Japan Coast Guard

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"JCG" redirects here. For the Channel Islands school, see Jersey College for Girls.
Japan Coast Guard
Kaijō Hoan-chō
Abbreviation JCG
Japan Coast Guard racing stripe.svg
Ensign of the Japanese Coast Guard.svg
Japan Coast Guard ensign
Agency overview
Formed 1948 (As Maritime Safety Agency)
April 2000 (As Japan Coast Guard)
Preceding agency Maritime Safety Agency
Employees 12,671
Legal personality Governmental: Government agency
Jurisdictional structure
National agency
(Operations jurisdiction)
Legal jurisdiction Japanese Maritime Zone
Governing body Japanese Government
General nature
Operational structure
Headquarters Tokyo, Japan
Official Websites in Japanese and English
Japan Coast Guard "Shikishima (PLH 31)" is the largest patrol vessel in Japan.

The Japan Coast Guard (海上保安庁 Kaijō Hoan-chō?), formerly the Maritime Safety Agency, is the Japanese coast guard. Comprising about 12,000 personnel, it is under the oversight of the Ministry of Land, Infrastructure, Transport and Tourism, and is responsible for the protection of the coastline of Japan. It was founded in 1948.


JCG officer conducts night inspection of fishing boat

The duty of the JCG is to ensure security and safety at sea.This provided through the following services:

  • Maritime patrol – patrols Japan's territorial seas and Exclusive Economic Zone (EEZ) of (12–200 nautical miles out from the shore which is approximately 4,470,000 km2).[1]
    • Countermeasures against Smuggling and Illegal Immigration
    • Countermeasures against Piracy (Regional Cooperation Agreement on Combating Piracy and Armed Robbery against Ships in Asia-ReCAAP)
    • Counter Terrorism
    • Security against Maritime Conflict – includes the Special Guard Team
    • Surveillance of Illegal Operations by Foreign Fishing Vessels
    • Countermeasures against Suspicious Vessels and/or Spy Ships
    • Dealing with Unlawful Acts by Foreign Oceanographic Research Vessels
    • Patrolling and Guarding the Waters near the disputed Senkaku Islands, Takeshima, and the Northern Territories
  • Search and rescue
  • Hydrographic and oceanographic surveying
  • Maritime traffic management


National Headquarters[edit]

Main building of the Ministry of Land, Infrastructure, Transport and Tourism in Kasumigaseki, under which the Japan Coast Guard operates, and where it is headquartered

The Japan Coast Guard is led by a Commandant and two Vice Commandants. Lower ranking officers include the director general, directors and inspector generals.

Organization (as of April 1, 2009)

  • Commandant
    • Vice Commandant
    • Vice Commandant for Operations
  • Administrative Inspector General
  • Administration Department
  • Coast Guard Research Center
  • Equipment and Technology Department
  • Guard and Rescue Department
  • Hydrographic and Oceanographic Department
  • Maritime Traffic Department
  • Coast Guard Academy (Kure)
  • Coast Guard School (Maizuru)
  • Moji Branch school (Kitakyushu)
  • Miyagi Branch school (Iwanuma)

The Japan Coast Guard Academy is a 4-year-training institution, located in Kure, Hiroshima prefecture, established within the Coast Guard for the purpose of training students to become officers. Graduates are given a bachelor's degree upon graduation. About 40 cadets graduate from the academy each year.

The JCG maintains two special forces units:


Founded in 1948 as the Maritime Safety Agency of Japan, its English name was changed to Japan Coast Guard in April 2000.[2] In 1950, the Maritime Safety Agency sent minesweepers to the Korean Peninsula under the United Nations flag during the Korean War.

On December 22, 2001, JCG ships intercepted a Chinese-flagged vessel believed to be North Korean in origin, in the Japanese Exclusive Economic Zone between Kyushu and China. When the vessel failed to respond, she was fired upon by the JCG and an exchange of gunfire resulted. The unidentified vessel sank in the Chinese EEZ with all hands.[3] The ship, later salvaged by the JCG, was found to be carrying weapons and spy equipment.[4] The wreck and its contents were put on display at the Japanese Coast Guard Museum at Yokohama.[5]

During the Liancourt Rocks dispute in April 2006, Youngest Members of Japan Coast Guard prepared for the worst and push ahead the research of around the Liancourt Rocks. Japanese Authorities fall in a state of great agitation this situation and call this incident as "a Coup d'état launched by the Japan Coast Guard(海保のクーデター)". Ministry of Foreign Affairs sent hastily a permanent secretary to Seoul, and Japanese Minister of Defense was in the Unite States at that moment. the Research Plan was Reported already to the Prime Minister's house. but at the moment, Prime Minister Junichiro Koizumi and Chief Cabinet Secretary Shinzō Abe was queer for the Chiba by-election. so they did not expect the Youngest Members of Japan Coast Guard has been out of control. one of Government Official report the intel about Japan Coast Guards' Research Plan to Former Prime Minister Yasuhiro Nakasone and president of the Democratic Party of Japan Ichirō Ozawa. the Government Official said "the Research of Area of the Liancourt Rocks was Planned by the Youngest Members of JCG. if Research Vessel captured by Koreaan authorities, they can claiming South Korea taken Liancourt Rocks Illegally. this is the JCG's Frenzy to the Japanese authorities whose acting passive in the Liancourt Issue for the relationship between South Korea. the success rate for diplomatic settlement of disputes Unclear, so We must consider all possible contingencies." [6] [7]

Operational regions[edit]

A map of the division of jurisdiction between the 11 JCG regions

Headquartered in Tokyo, the JCG has divided the nation into eleven regions to facilitate its coast guard operations. Each region maintains a Regional Coast Guard Headquarters, under which there are various Coast Guard Offices, Coast Guard Stations, Air Stations, Hydrographic Observatory, and Traffic Advisory Service Centers.

Major equipment[edit]

A vessel of the Japan Coast Guard – Hida powered with four MTU 20V1163TB93 diesel engines
A Eurocopter AS332 Super Puma of the Japanese coast guard flying over Tokyo Bay


The JCG operates 455 watercraft, these include the following:

  • Patrol vessels: 121
  • Patrol craft: 234
  • Special guard and rescue craft: 63
  • Hydrographic survey vessels: 13
  • Aids to navigation evaluation vessels: 1
  • Buoy tenders: 2
  • Aids to navigation tenders: 18
  • Training boats: 3


The JCG operates 74 aircraft, these include:

  • Fixed Wing: 27
  • Helicopters: 46


a "Onebox Car" using as a Patrol Car of Japan Coast Guard in Kagoshima.

Oddly, JCG using a Civil vehicles(known as "Onebox Car(ワンボックスカー)") with JCG Marking instead a Patrol Vehicle. one of SST Operator says "JCG dosen't designated Any Emergency Vehicle. Even SST too. so no matter how urgent situations we have, We must stop at red lights, keep the speed limit. we even pay the highway tolls. It might look miserable, but this is the The 'Reality of the Law' which restrain the SST.(海保は緊急車両の指定を受けていません。もちろんSSTもです。だから、どんな緊急事態であっても、赤信号では止まらなければならないし、法定速度も守る。高速料金も払います(笑)。情けなく見えるかもしれませんが、これがSSTをめぐる、現在の『法的な現実』なんですよ)" [8]

See also[edit]


  1. ^ http://www.kaiho.mlit.go.jp/e/pamphlet.pdf
  2. ^ New Fighting Power! Retrieved on April 25, 2008.
  3. ^ 国境を守る海上保安庁. (Japanese)
  4. ^ 北朝鮮 工作船. (Japanese)
  5. ^ 海上保安資料館 横浜館-Japan Coast Guard Museum YOKOHAMA-. (Japanese)
  6. ^ Astonishing Scoop - a Research of Area of the Liancourt Rocks was "A Coup Staged by Youngest Members of Japan Coast Guard"! at that moment, Koizumi's Office filled with Sharp-edged Angry shouts (驚愕スクープ 竹島海域調査は「海保(若手官僚)のクーデター」だった!--その時、小泉官邸は蒼ざめ怒声が飛んだ ). Weekly Post(週刊ポスト). Shogakukan. 2006-05-19
  7. ^ http://news.khan.co.kr/kh_news/khan_art_view.html?artid=200605091220291&code=970203
  8. ^ Komine, SST the Japan Coast Guard Special Forces(海上保安庁特殊部隊SST). Namiki Shobo. 2005
  9. ^ Advanced Land Observing Satellite "DAICHI" (ALOS) (JAXA webpage)


  • Komine, Takao (2005). SST the Japan Coast Guard Special Forces(海上保安庁特殊部隊SST). Namiki Shobo(並木書房). ISBN 4-89063-193-3. 


  • "驚愕スクープ 竹島海域調査は「海保(若手官僚)のクーデター」だった!--その時、小泉官邸は蒼ざめ怒声が飛んだ" [Astonishing Scoop - a Research of Area of the Liancourt Rocks was "A Coup Staged by Youngest Members of Japan Coast Guard"! at that moment, Koizumi's Office filled with Sharp-edged Angry shouts]. Weekly Post(週刊ポスト) (in jpn). 38 (21). Shogakukan. 2006-05-19. pp. 20~24. 

External links[edit]

Coordinates: 35°40′33″N 139°45′00″E / 35.67583°N 139.75000°E / 35.67583; 139.75000