2. SECA
Sulphur Emission Control Areas (SECAs)
are sea areas where there are stricter
requirements for used bunker fuel
compared to other sea areas.
SECA is defined in MARPOL Annex VI.
The area includes North Sea, Baltic Sea,
and within 24 miles of California coast.[1]
Also other areas may be added via protocol
defined in Annex VI.
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7. SOX EMISSION LIMITS
MARPOL ANNEX VI
1.0
2.0
3.0
4.0
2010/07
2015
2020
2025
2005
2018 revision
Average sulphur content
Revision in 2018 might conclude that
0.5 limit defers until 2025
2025?
FuelSulphurlimit[%]
1.0 % S
0.1 % S ( MGO)
SECA CAP: 1.5 % S
GLOBAL CAP : 4.5 % S
3.5 % S
0.5 % S ( MDO)
2012
EU Directive
9. EU SULPHUR DIRECTIVE
• In line with the Annex VI of the MARPOL Convention, the
limits for the sulphur content of marine fuels used in
designated SO2 Emission Control Areas (SECAs) will be 1%
until 31 December 2014 and 0.1% as from 1 January 2015.
• The IMO standard of 0,5 % for sulphur limits outside SECAs
will be mandatory in EU waters by 2020. This will also be valid
for passenger ships operating outside SECAs to which the
current regime of 1,5 % applies until that date.
• A general cap does not allow the use of marine fuels with a
sulphur content of more than 3,5 % by mass within member
states territory, with the exception of fuels used by vessels
with alternative exhaust gas cleaning systems, the so-called
scrubbers, operating in closed mode. According to the
compromise, member states should endeavour to ensure the
availability of the required marine fuels.
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