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MARPOL Annex I

MARPOL ANNEX I
Regulations for prevention of pollution by oil from ships



Discharge Regulations
  • Outside special areas / Inside special areas
Any discharge of oil or oily mixtures from ships of 400 GT & above is prohibited except when;
  • Ship is en route.
  • Processed through an oil filtering equipment (approved by Administration).
  • Oil content does not exceed 15 ppm without dilution.
  • Does not originate from cargo p/p room bilges.
  • Not mixed with oil cargo residues.
  • In Arctic waters any discharge of oil or oily mixtures into the sea is prohibited.

Oil Filtering Equipment
  • Any ship of 400 GT & above shall be fitted with oil filtering equipment.
  • Must be design approved by Administration.
  • Oil Content of effluent less than 15ppm without dilution.
  • Automatically stop and alarm when oil content exceeds 15ppm.

Oil Tankers Cargo Area
  • Any discharge into sea or oily mixtures from the cargo area of an oil tanker shall be prohibited except when all following satisfied;
    • Outside a special areas.
    • More than 50 nautical miles away from nearest land.
    • Proceeding en route.
    • Instantaneous rate of discharge does not exceed 30 l/nm
    • Total quantity of oil discharged into the sea does not exceed 1/30 000 of the total quantity of the cargo which formed the residue.
    • Has an oil discharge monitoring and control system and a slop tank arrangement.
  • This does not apply to clean or segregated ballast.

Oil Discharge Monitoring & Control System
  • Oil tankers of 150GT and above shall have ODM approved by the Administration.
  • Provided with continuous record of discharge in litres per nautical mile & quantity discharged.
  • Records kept for 3 years.
  • Automatic stop when instantaneous rate exceeds 30 litres per nautical mile.

Oil Record Book Part I – Machinery Space Operations
  • Every ship of 400 GT & above and every Oil Tanker of 150 GT & above must have ORB Part I
  • Code C : Sludge
    • C: 11 – Collection C: 12 – Disposal
Weekly update
  • 1 – Tank
  • 2 – Capacity
  • 3 – Retention
Manual Operation
  • 1 , 11.2, 11.3
  • 4 – Quantity transferred & the tank of origin
Disposal
  • C 12.1 – Shore, Barge or tank
  • C 12.2 – Transfer from tank to tank
  • C 12.3 – Incineration (data: time period)
  • C 12.4 – Other (e.g.: Boiler)

  • Code D : OWS, Transfer of Bilge water
    • D 13: Quantity
    • D 14: Time (Start & Stop)
    • D 15: Method
      • 1 OWS (Start & Stop Positions)
      • 2 Reception (Port name)
      • 3 To a Tank (Tank , Quantity retained)
  • Code F : OWS Failure
  • Code H : Bunkering
    • 1 Place
    • 2 Time
    • 3 Type, Quantity & Tanks (F.O)
    • 4 Type, Quantity & Tanks (L.O)
SOPEP
  • For Every ship of 400 GT & above and Every Oil Tanker of 150 GT & above.
  • Procedures to report an incident.
  • List of authorities to contact.
  • Actions to be taken in case of an Oil spill.

Special Areas
  1. Mediterranean Sea
  2. Baltic Sea
  3. North Sea
  4. Black Sea
  5. Red Sea
  6. Gulfs Area
  7. Gulf of Aden
  8. Antarctic area
  9. Sothern South African Waters
Sludge Tanks
  • Every ship of 400 GT and above must have sludge tank/tanks with adequate capacity according to the length of voyage.

Standard Discharge Connection
  • To enable pipes of reception facilities to be connected to the ship.
  • Two on open deck at both sides.
  • Flange;
    • OD: 215 mm
    • PCD: 183 mm
    • 6 holes 22 mm diam. Slotted 22 mm
    • Thickness : 20 mm
    • Bolts & nuts : M20

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