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0295/23

SÉCURITÉArchived
Received: 18 Mar 2023, 19:00Archived: 10 Jul 2026, 21:47Updated: 5 Nov 2026, 14:24
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analysis

No longer in force

Humanitarian transit corridor and waiting areas in the Black Sea for grain shipments

A Maritime Humanitarian Corridor (MHC) and associated waiting and transit areas have been established in the Black Sea for ships entering and leaving Ukrainian ports. The scheme is effective from 18 Mar 2023 2359Z until further notice. Transit vessels must follow MKM/İstanbul Traffic directions, keep AIS active, transit 0500-2100 local time, and report harassment or threats to the Joint Coordination Centre (MKM). Military ships, aircraft or drones must not come closer than 10 miles to any vessel transiting the corridor.

Participate only with Joint Coordination Centre (MKM) approval via Istanbul Traffic; keep AIS on; transit 0500-2100 local; follow instructions of Istanbul Traffic/MKM; show appropriate signals and lights; report harassment or threats to MKM immediately.

Type
Restricted area · severity moderate
Feed
Security and restricted areasAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/security/
Location
Black Sea - routes connecting Ukrainian ports and Turkish control areas
Validity
From 18 Mar 2023, 23:59 UTC
182359Z MAR 23’DEN İKİNCİ BİR DUYURUYA KADAR
Activity periods
  • ? - ? (daily 0500-2100 local (transit required between these hours))
Hazards
restricted transit corridor, escort and control of participating vessels, limited manoeuvrability of transit vessels
Keep clear
10 NMNo warship, aircraft or unmanned aerial vehicle in contact with operations shall come closer than 10 MILES to any ship transiting the corridor.

Contacts

  • İstanbul Trafik Kontrol İstasyonu · Istanbul Traffic control station to be informed and to direct vessels
  • MÜŞTEREK KOORDİNASYON MERKEZİ (MKM) · Joint Coordination Centre (coordination and authorisation)

Coast stations for this area

Generated automatically from the warning text on 31 Oct 2026, 05:47 UTC. It can be wrong: the original warning below is the authoritative text.

Keywords

  • Geometry refsbounded, circle_radius, polygon
  • Weather Warninghigh seas
  • Geometry phrasesarea bounded, bounded by, radius
Message content
BLACK SEA BLACK SEA GRAIN INITIATIVE JOINT COORDINATION CENTER (JCC) - ISTANBUL 182359Z MAR 23 UNTIL FURTHER NOTICE DATUM WGS84. THE BLACK SEA GRAIN INITIATIVE JCC HAS ESTABLISHED A ROUTE FOR VESSELS INBOUND AND OUTBOUND OF UKRAINAN PORTS. THE ROUTE IS 320NM LONG AND CONNECTS THE LISTED UKRAINIAN PORTS WITH INSPECTION AREAS INSIDE TURKISH TERRITORIAL SEAS. THE MARITIME HUMANITARIAN CORRIDOR (MHC) FORMS PART OF THIS ROUTE AND EXTENDS FROM THE BOUNDARY OF UKRAINIAN TERRITORIAL SEAS TO THE SOUTHERN WAYPOINT OF THE HIGH SEAS TRANSIT CORRIDOR (HSTC). WHILST TRANSITING THE MHC NO MILITARY SHIP, AIRCRAFT OR UAV MAY CLOSE WITHIN A RADIUS 10NM OF ANY VESSEL ENGAGED IN THE INITIATIVE AND TRANSITING THE CORRIDOR. VESSELS ENCOUNTERING PROVOCATIONS OR THREATS WHILE TRANSITING THE MHC SHOULD REPORT IMMEDIATELY TO THE JCC. NO VESSEL SHALL TRANSIT THE MHC WITHOUT THE AUTHORISATION OF THE JCC. PILOTS WILL EMBARK FOR PASSAGE BETWEEN BERTH AND HOLDING AREA. CHORNOMORSK TO HOLDING AREA. CHANNEL WIDTH UP TO 200M: 46 24.000 N - 030 54.000 E 46 20.500 N - 030 43.200 E 46 20.000 N - 030 42.700 E 46 18.842 N - 030 41.807 E 46 19.123 N - 030 40.596 E ODESA TO HOLDING AREA. CHANNEL WIDTH UP TO 200M: 46 30.000 N - 030 54.000 E 46 30.000 N - 030 46.400 E 46 29.902 N - 030 46.043 E 46 29.986 N - 030 44.542 E PIVDENNYI TO HOLDING AREA. CHANNEL WIDTH UP TO 200M: 46 30.500 N - 030 57.000 E 46 32.600 N - 030 57.000 E 46 33.342 N - 031 00.044 E 46 36.187 N - 031 01.000 E HOLDING AREA: 46 30.500 N - 030 54.000 E 46 30.500 N - 030 58.200 E 46 24.000 N - 030 58.200 E 46 24.000 N - 030 54.000 E VESSEL MUST TRANSIT BETWEEN THE HOLDING AREA AND MHC THROUGH THE AREA BOUNDED BY: 46 24.000 N - 030 54.000 E 46 19.000 N - 031 05.000 E 46 12.000 N - 031 07.500 E 46 12.000 N - 031 12.500 E 46 27.000 N - 031 10.500 E 46 28.200 N - 030 58.200 E THE HSTC IS 83NM LONG AND 3NM WIDE. WHEN TRANSITING THE HSTC VESSELS ARE CONSIDERED RESTRICTED IN THEIR ABILITY TO MANOEUVRE AND SHOULD DISPLAY THE APPROPRIATE LIGHTS/SHAPES. VESSELS MUST TRANSIT BETWEEN 0500 – 2100 LOCAL. HSTC (CENTRELINE): 44 53.000 N - 030 39.500 E 008/188 45NM 45 37.100 N - 030 48.100 E 025/205 38NM 46 12.000 N - 031 10.000 E A SOUTHERN WAITING AREA (SWA) IS DESIGNATED AS A TEMPORARY HOLDING AREA FOR VESSELS ENGAGED IN THE INITIATIVE. INBOUND VESSELS MAY USE THE SWA TO AWAIT TRANSIT DURING AUTHORISED HOURS, INFORMING THE JCC THROUGH ISTANBUL TRAFFIC: SWA: 44 50.000 N - 030 10.000 E 44 50.000 N - 030 25.000 E 44 55.000 N - 030 25.000 E 45 00.000 N - 030 10.000 E VESSELS ON PASSAGE BETWEEN THE MHC AND THE TURKISH INSPECTION AREAS SHALL PASS THROUGH POSITION 42 19.15N 029 27.00E. ISTANBUL VTS WILL INFORM AND DIRECT VESSELS TO THE APPROPRIATE INSPECTION AREA TURKISH INSPECTION AREA N (BLACK SEA): 41 14.900 N - 028 59.580 E 41 17.260 N - 028 59.580 E 41 17.260 N - 029 02.200 E 41 15.500 N - 029 04.600 E 41 15.200 N - 029 04.600 E TURKISH INSPECTION AREAS S (SEA OF MARMARA): 41 00.360 N - 028 59.130 E 40 59.330 N - 028 58.570 E 40 58.090 N - 028 56.470 E 40 59.840 N - 028 56.470 E 40 58.480 N - 028 53.280 E 40 59.500 N - 028 56.280 E 40 58.060 N - 028 56.280 E 40 56.460 N - 028 53.280 E OTHER THAN IN CASE OF EMERGENCY, PORT CALLS AND PROLONGED STOPS ARE NOT PERMITTED DURING THE TRANSIT. SHIP TO SHIP TRANSFERS ARE NOT AUTHORISED. VESSELS PARTICIPATING IN THE INITIATIVE MUST TRANSMIT ON AIS AT ALL TIMES. ADDITIONAL PROCEDURES FOR VESSELS WISHING TO PARTICIPATE IN THE INITIATIVE ARE CONTAINED IN IMO CIRCULAR LETTER 4611 (SERIES).

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