Show Menu

HHva betyr MARPOL?

The Intern­ational Convention for the Prevention of Pollution from Ships

Struktur av MARPOL

Regula­tions for the prevention of poluttion by oil
73/78 as conseq­uences
Regula­tions for the Control of Pollution by Noxious Liquid Substances in Bulk
Bergen Chemicals( Noxius liquid substances in Bulk)
Regula­tions for the Prevention of Pollution by Harmful Substances Carried by Sea in Packaged Form
Harmful substances sea in packet form
Regula­tions for the Prevention of Pollution by Sewage from Ships
sewage from ships
Regula­tions for the Prevention of Pollution by Garbage from Ships
garbage from ships
Regula­tions for the Prevention of Air Pollution from Ships
Air pollution

Ha er formål med marpol?

The purpose of the Convention is to prevent and minimize pollution from ships, both accidental pollution and pollution from routine operations

Annex 1

Compliance with Annex 1 is confirmed by Intern­ational Oil Prevention Certif­icate
which is required for vessels trading in intern­ational trade.
Oil tankers 150 GRT and above Other ships 400 GRT and above
Hva er olja?
Oil is defined as petroleum in any form including crude oil, fuel oil, sludge and refined products such as;
For example
Marine diesel oil, Gas oil
Lubric­ating oil

Shipboard Oil Pollution Emergency Plan (SOPEP)

This a prevention plan carried on board contai­ning; instru­ctions for the “oil pollution prevention team”
It should contain:
General inform­ation of the ship
An emergency plan
Drawings of fuel oil lines/­tanks
Location of SOPEP boxes
In this plan you get an overview of possible proced­ure­s/a­ction plan in case of an oil spill
In the plan is also mentioned who you should contact (list of author­ities) , port state contro­l/USCG, and how to report this event

All discharges of oil at sea are prohibited

Machinery space (bilge and sludge)
All ship types: Machinery space
Bilge waste: oily water from the bilges (OWS) Sludge: waste residue from the filtration of fuel oil
Ship must be en route
Oily mixture must have been processed through the oil filtering equipment
Oil content of the mixture does not exceed 15 parts per million (ppm)
Oily mixture is not mixed with cargo residues (see later)
Cargo space (slops) pump-r­oom(s)
Oil tankers
Must be more than 50nm from nearest land (also defined)
30 litres per nautical mile
Discharged through the Oil Discharge Monitoring Equipment (ODME)
Maximum discharge quantity on a ballast voyage should not exceed 1/30,000 of the total quantity of the particular cargo of which the residue formed a part

hva er SOPEP box?

Oil spill equipment (SOPEP box)


Every oil tanker of 150 GT and above Every other ship of 400 GT and above
Valid for 5 years (to be endorsed annually upon completion of survey)
Oil Discha­rging Monitoring Equipment (ODME)
Oil Record Books (ORB)
Oily Water Separa­tor­(OWS)
Oil Filtering System
Mandatory annual surveys or unsche­duled inspection

The remaining oil

Is to be retained in the slop tank(s)
To be pumped ashore (remember ORB/re­ceipt)
If suitable, mixed with other cargoes (load on top system)
It is not allowed to transfer remaining oil/re­didue to engine room

Special Areas

“Special Area is a sea area where for recognized oceano­graphic and ecological condition and to the particular character of its traffi­c…s­pecial mandatory methods for the prevention of sea pollution by [oil] is required.”

Oil record book

An Oil Record Book part 1 shall be carried on board every oil tanker of 150 GT and above and every other ship of 400 GT and above to record relevant machinery space opeartions
In addition, oil tankers of 150 GT and above shall carry an Oil Record Book part 2 to record cargo and ballast operations
must be available at all times for examin­ation by Port State Control or other inspectors of any port within their jurisd­iction
Defect­/in­ope­rative equipment to be recorded in ORB


It should be noted that Clubs in the Intern­atiol Group do not condone breaches of the Marpol regula­tions
Other than in cases of purely accidental discharge, P&I cover for fines resulting from breaches of Marpol regulation is only available on a discre­tionary basis

Crude Oil Washing (COW)

Crude oil washing (COW) is a system whereby oil tanks on a tanker are cleaned out between voyages not with water, but with crude oil - the cargo itself. The solvent action of the crude oil makes the cleaning process far more effective than when water is used. (There is usually a final water rinse but the amount of water involved is very low.) The system helps prevent pollution of the seas from operat­ional measures
COW is mandatory on new tankers under the Intern­ational Convention for the Prevention of Pollution by Ships (MARPOL).


No comments yet. Add yours below!

Add a Comment

Your Comment

Please enter your name.

    Please enter your email address

      Please enter your Comment.

          More Cheat Sheets by mia2696

          port state control Cheat Sheet