New regulation
The Ministry of Environment and Sustainable Development has
issued a new regulation addressing ballast water treatment for vessels arriving
from foreign ports. Pursuant to Regulation 85-E/2017, vessels calling at
Argentine ports must apply a chlorination process to their ballast tanks as a
measure to prevent the introduction of invasive aquatic species that could
affect river ecosystems in Argentina.
In addition to the new regulation, two other primary regulations
address ballast water treatment:
· Coastguard Regulation 7/98 establishes that all vessels arriving
from foreign ports must deballast before entering the Rio de la Plata. This
regulation refers to an area determined by the treaty between Argentina and
Uruguay regarding the maritime boundary in which there is an absolute
prohibition against deballasting. This area is determined by four waypoints as
follows: Punta del Este – Uruguay/latitude 36º 14' s longitude 53º 32'
w/latitude 37º 32' s longitude 55º 23' w/Punta Rasa (Argentina). Further,
according to the regulation, a salinity level lower than 30 parts per thousand
(30 milligrams per cubic centimetre) in the ballast water will not be accepted after
being changed. If the measurements made on the samples indicate a lower
salinity level, the ballast water exchange operation will be considered not to
have been performed satisfactorily or to have been carried out too close to the
Rio de la Plata.
· Coastguard Regulation 12/98 establishes certain protected areas
in southern Argentina (Patagonia) where deballasting is prohibited.
The new regulation makes no reference to ballast water exchange.
However, it stipulates that Regulation 7/98 – requiring ballast exchange – must
be followed. This regulation creates uncertainty in cases where vessels
arriving from Brazilian ports must divert to high seas to proceed with ballast
exchange before heading to the Rio de la Plata. It could be argued that ballast
exchange would not be necessary if chlorination is applied. However, the
chlorination process will bring more issues, as it is unclear as to who should
chlorinate the tanks. The current regulation posits only that it must be done
at roads on arrival, but does not clarify whether it could be pursued by the
crew or a local entity.
This regulation is intended as a preliminary stage to the
International Convention for the Control and Management of Ships' Ballast Water
and Sediments, to which Argentina is party by Act 27.011/2014 and which will
enter into force on September 8 2017. In the meantime, the Coastguard is
expected to review its own regulations following the rules from the Ministry of
Environment and Sustainable Development in order to bring more certainty to
deballasting operations.
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