Safety Regulations and Inspections

Tokyo port has regulations and rules on safety for both tankers and dry cargo vessels.

(3) Regulations for the Enforcement of the Port - Regulations Law
(Ministry of Transport Ordinance No. 29 of 1948 as amended through Ministry of Transport Ordinance No. 27 of 1993).


Special Navigational Rules
Article 27-2
In Tokyo West Passage, a vessel may, if there is enough space for safe passing, overtake another. A steam vessel intending to overtake another vessel on the starboard side of the latter, shall sound on her whistle or siren one (1) prolonged blast followed by one short blast and a steam vessel intending overtake another on the port side of the latter, shall sound one prolonged blast followed by two (2) short blasts.


2. The provision of the latter part of the preceding paragraph shall mutatis mutandis apply to a steam vessel which overtakes another vessel in Section I and rivers and canals in Tokyo Quarter.


3. A vessel of 500 gross tons or more shall not navigate westward through the area of the reclaimed land of No. 13 Ground II beyond the line drawn from the eastern extremity of the reclaimed land of No. 13 Ground II to the middle tip of the reclaimed land inside the Central breakwater (135 degrees 36'13"N; 139 degrees 48'7"E).


Navigation Precautions
Article 28
In Tokyo Quarter, a vessel intending to swing her bow using the anchor shall fly a pennant under a black ball or a black shape in the daytime, or a red light in addition to the lights under the provisions of theLaw for Preventing Collisions at Sea (Law No. 62 of 1977) at night at a conspicuous place.


Article 28-2
A steam vessel intending to enter Keihin Canal from another canal or enter another canal from Keihin Canal shall sound one prolonged blast on her whistle or siren at the point 150 metres before the connecting point of the two (2) canals.


Article 29
A vessel of 500 gross tons or more intending to depart from Section I or Section II of Tokyo Quarter shall exhibit identity signal flags in the daytime or two (2) white lights in vertical lines at night and sound on her whistle or siren two (2) prolonged blasts 30 minutes before starting operations.


Article 29-2
A vessel of 5,000 gross tons or more (or a tanker of 1,000 gross tons or more) intending to enter Section 1 of Kawasaki Quarter or Section IV of Yokohama Quarter through Tsurumi Passage or Kawasaki Passage shall sound two (2) prolonged blasts on her whistle or siren in the vicinity of the entrance of the Passage (when intending to pass through Tsurumi Passage or Kawasaki Passage departing from Section I of Kawasaki Quarter or Section IV of Yokohama Quarter shall sound the same signal in the area in front of Sakai Canal or Kawasaki Power Station of Tokyo Electric Power Company).


2. A vessel of 5,000 gross tons or more (or a tanker of 1,000 gross tons or more) intending to enter the Port through Tokyo East Passage, Tokyo West Passage or Yokohama Passage shall notify the Captain of the Port of estimated time of arrival in the vicinity of the entrance of the Passage (when intending to depart from the Port through the Passage, estimated time of navigation) by noon of the day before the estimated date of arrival or the estimated date of navigation.


3. A vessel of 1,000 gross tons or more intending to enter Section 1 of Kawasaki Quarter or Section IV of Yokohama Quarter through Tsurumi Passage or Kawasaki Passage shall notify the Captain of the Port of estimated time of arrival in the vicinity of the entrance of the Passage (when intending to shift in the Section, excluding the vessel shifting in the area other than Keihin Canal) or intending to depart from the Section through the Passage, (estimated time of starting operation) by noon of the day before the estimated date of arrival or starting operations.


4. The vessel which has given notification of the estimated time under the preceding two (2) paragraphs, shall notify the Captain of the Port of any change in the estimated time without delay.

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