There are several national and international regulatory regimes that currently cover the impact of a leakage(in CO2 storage) The escape of injected fluid from the storage formation to the atmosphere or water column event from a geological CO2Carbon dioxide storage(CO2) A process for retaining captured CO2, so that it does not reach the atmosphere site. These include the London ConventionInternational convention on the prevention of marine pollution by dumping of wastes and other matter, which was adopted at London, Mexico City, Moscow and Washington on 29 December 1972 and Protocol, OSPARConvention for the Protection of the Marine Environment of the North-East Atlantic, which was adopted at Paris on 22 September 1992 and EUEuropean Union directive which are discussed next. The geographical coverage of these regulatory regimes overlap to some extent. These international agreements were also elaborated at different times and from different starting positions, reflected by their content and focus, i.e. OSPARConvention for the Protection of the Marine Environment of the North-East Atlantic, which was adopted at Paris on 22 September 1992 is concerned with effects on the marine environment, whereas the EU CCS DirectiveDirective 2009/31/EC of the European Parliament and of the Council of 23 April 2009 on the geological storage of carbon dioxide is more general in its expression.