MARPOL 73/78 Annexes and Its Requirements

In
this article all the information related to Marpol like why it was formed and
the various Annexes that fall under it have been discussed. Marpol came into
the power because of the serious concern related to the Marine pollution that
was affecting both aquatic and human life. Let’s read about this
interesting topic in much more detail.
Marpol
stands for Marine Pollution and its making is clear to everybody who
is part of this industry. Marpol got its implementation in the year 1973, when
it was felt that there should some law that can laid the foundation of checking
the pollution taking place at sea. By the year 1978, this law was accepted by
almost every country and it was successfully implemented. As we know that there
are several parts of every law that covers various aspects related to it. So
here we have six different annexes that are part of this convention. So let’s
discuss these annexes in detail.

ANNEX
1- POLLUTION IN SEA DUE TO OIL

This
annex deals with all the aspects of sea pollution related to the oil. Oil Pollution is that major type of any undesirable event taking place at sea.
Once caused, it hampers the transfer of sun light and Oxygen in to the water.
Also its affects the sea lives like birds (It sticks to the feather of birds).
The date of implementation of Annex 1 was 2nd October 1983.

Sometimes this happens due to carelessness of crew in the
ship; there is a process in which oil and water are separated from each other, present in bilges below the engine of ship. During this process the
excess waste oil is driven and saves in a holding tank and the separated water
having drops of oil is pumped out in the sea. A very small amount of oil
exposure in the sea is allowed, perhaps due to inappropriate systems this
amount exceeds the limited value and causes leaks of oil in to the sea.

Requirements
of MARPOL Annex 1

1.)    Oily
water mixtures from the bilges can only be thrown in to sea once it is treated
for 15PPM oil content in this water and ship should be enroute condition and
12Nautical miles away from the nearest land. 
2.)    For
the oil water mixtures coming from the cargo tanks, it should have oil
content less than the 30 PPM and ship should be around 50 Nautical miles
away from the land and should be in enroute condition. The rate of discharge in
both cases need to less than 30 litters in one nautical miles. 

ANNEX
II- POLLUTION DUE TO CARRIAGE OF NOXIOUS SUBSTANCE

When
tank cleaning is done in ships then this Annex come in to play.

Requirements
of MARPOL Annex II

The
concentration of effluents needs to be .1% by weight. The ships should
be enroute condition throwing the effluents, it should be around 12 nautical miles
away from nearest land, and speed should be around 7 Knots. There are various
categories of substances that come under this like X,Y,Z. The date of
implementation of Annex II was 6th April 1987.

ANNEX
III- POLLUTION DUE TO HARMFUL SUBSTANCES

As
name suggests this annex deals with pollution that is caused due to the harmful
substances. In this annex Jettisoning is prohibited. The date of
implementation of Annex III was 1st July 1992.

ANNEX
IV- POLLUTION CAUSED DUE TO SEWAGE

This
annex deals with the pollution that is caused due to the discharge of sewage in
to the sea. The date of implementation of Annex IV was 22nd September
2003.

Requirements
of MARPOL Annex IV

1)      All
the comminuted (Thoroughly crushed) and disinfected products can be discharged
3 Nautical miles away.

Marpol
2)      Untreated
sewage in the holding tanks can be discharged at a distance that is greater
12 Nautical miles away. And it should not contain any floating object.

ANNEX
V- POLLUTION CAUSED DUE TO GARBAGE

This
is a very serious issue in the sea pollution. Plastics are totally banned, but
the soft plastic can be thrown but after some treatment done on it. The
date of implementation of Annex V was 1st December 1988.

Requirements
of MARPOL Annex V

1)      Plastics,
including synthetic ropes, synthetic fishing nets, and plastic garbage are
not allowed to be thrown in to the water.
2)      Dunnage,
lining and packing materials that can float needs to thrown at a distance
greater 25 Nautical miles.
3)      Food
wastes and all other garbage including cargo residues can be thrown at a
distance of 12 nm.
4)      Garbage
that has been ground or comminuted to pieces below 25mm can be thrown at
distance of 3 nautical miles.

ANNEX
VI- POLLUTION CAUSED DUE EXHAUST GASES

Generally
nitrogen oxides and Sulphur oxides harm the ozone of earth and they need to be
under the limits in the exhaust of main engine. The date of implementation
of Annex VI on 19th May 2005.

Requirements
of MARPOL Annex VI

1)      The
engine of the ship need to be verified for controlled emissions. The content of
Sulphur in the exhaust need to be less than 4.5 %.
2)      Incinerators that
were installed before 2000 need to be verified as per the new rules.

Update: From 1st January 2015, sulphur content is .1% m/m.

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you liked MARPOL 73/78 Annexes article, please comments for any suggestions.

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