HNS Convention - MPCD - BIOSINFO

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The International Convention on Liability and Compensation for Damage in Connection with the Carriage of Hazardous and Noxious Substances by Sea (HNS Convention) was adopted by the IMO in May 1996. It aims to ensure adequate, prompt and effective compensation for damage that may result from shipping accidents involving hazardous and noxious substances.

The Convention entitles claimants to compensation for loss or damage to persons, property and the environment caused by incidents involving cargoes of oil, gases and chemicals, plus other substances which are hazardous in packaged form. Pollution damage caused by persistent oils already covered by the CLC and Fund Convention is excluded, as is damage caused by radioactive materials and coal.

The HNS Convention is modelled on the CLC and Fund Convention. Thus, the shipowner (and his P&I insurer) is strictly liable to pay the first tier of compensation whereas the second tier comes from a fund levied on cargo receivers in all Contracting States on a post-event basis.

Shipowner liability ranges from SDR 10 million (about US$ 16 million) for ships up to 2,000 GT, rising linearly through SDR 82 million (about US$ 128 million) for ships of 50,000 GT, to a maximum of SDR 100 million (about US$ 156 million) for ships over 100,000 GT. It is compulsory for all ships over 200 GT to have insurance to cover the relevant amount.

An HNS Fund (which will most likely be administered by the secretariat of the IOPC Funds) provides compensation up to a total of SDR 250 million (US$ 390 million), inclusive of shipowner liability but irrespective of ship size. The HNS Fund will comprise four separate accounts for oil, LPG, LNG and a general account for other HNS substances such as bulk solids and chemicals. Each separate account will meet claims attributable to the relevant cargo without cross subsidisation and will be funded in proportion to total receipts of relevant cargoes in Contributing States.

The HNS Convention will enter into force 18 months after ratification by 12 flag States, including four States each representing 2 million GT and Port States importing an annual aggregate of 40 million tonnes of chemicals and other solid bulk materials which are hazardous in packaged form. Despite being adopted in 1996, the HNS Convention had, at July 2009, only 14 ratifications and is some way from meeting the level of ratification that would trigger its entry into force.

In 2009 the IMO Legal Committee approved a draft Protocol to the HNS Convention, designed to address the practical problems that have prevented many States from ratifying the original Convention.  Among the obstacles has been the requirement for States to report the quantities of HNS received to IMO, which has proved difficult, in part, due to the sheer range and diversity of hazardous and noxious substances that will be governed by the HNS Convention. The Protocol aims to address this problem as well as others thought to be acting as barriers to ratification of the Convention.  The Protocol was adopted at a diplomatic conference convened in April 2010.

Full text of HNS Convention (IOPC Correspondence Group)


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