ASN had considered that the principle of reversibility implied a requirement for adaptability of the facility and retrievability of the packages during a period governed by law. The Decree of 23 February 2017 relative to the provisions of the PNGMDR details certain principles applicable to Cigéo, and more particularly in Articles D. 542-88 to D. 542-96 of the Environment Code. Article D. 542-90 stipulates in particular that “The inventory to be considered by the French National Agency for Radioactive Waste Management (Andra) for the studies and research conducted for the design of the repository provided for in Article L. 54210-1 shall comprise a reference inventory and a reserve inventory. The reserve inventory shall take into account the uncertainties associated more specifically with putting in place new waste management routes or changes in energy policy. The repository shall be designed to accommodate the waste of the reference inventory. It shall also be designed by Andra, in consultation with the owners of the substances of the reserve inventory, to be capable of accommodating the substances figuring in that inventory, provided that changes in its design can be implemented if necessary during operation of the repository at an economically acceptable cost”. Underground laboratory of Meuse/Haute-Marne Studies on deep geological disposal necessitate research and experiments in an underground laboratory. Andra has been operating such an underground laboratory within the Bure municipality since 1999. In the context of the studies on the deep geological disposal, ASN issues recommendations concerning the research and experiments conducted in the laboratory, and ascertains by random sampling during follow-up inspections that they are carried out using processes that guarantee the quality of the results. Technical instructions Pursuant to the Act of 30 December 1991, and then pursuant to the Act of 28 June 2006 and the PNGMDR, Andra has carried out studies and submitted reports on deep geological disposal. These reports have been examined by ASN –referring in particular to the Safety Guide of 2008– and it has issued an opinion on them. ASN has thus more specifically examined the reports submitted by Andra in 2005 and 2009. It issued opinions on these reports on 1 February 2006 and 26 July 2011. Andra subsequently submitted various files to ASN presenting the progress of the studies and work carried out. ASN issued a position statement: ∙ in 2013, on the documents produced between 2009 and 2013 –the year of the public debate, and on the intermediate design milestone at the outline stage presented by Andra in 2012; ∙ in 2014, on the safety components of the closure structures and the expected content of the safety options dossier for the facility; ∙ in 2015, on the control of operating risks and the cost of the project; ∙ in 2016, on the components development plan; ∙ in 2018, on the Cigéo Safety Options Dossier (DOS). The authorisation process Examination of the creation authorisation application for a deep geological disposal facility will not start until formally requested by Andra and will be governed in particular by Book V, Title IX, Chapter III, Section 4 of the Environment Code and by Article L. 542-10-1 of the Environment Code, which is specific to deep geological disposal facilities. UNDERGROUND RESEARCH LABORATORY RAMPS ZONE SHAFTS ZONE DOUBLE RAMPS SHAFTS HLW REPOSITORY ZONE Underground installations ILW-LL REPOSITORY ZONE SCHEMATIC DIAGRAM OF THE CIGÉO REPOSITORY SHOWING THE SURFACE AND UNDERGROUND FACILITIES 354 ASN Report on the state of nuclear safety and radiation protection in France in 2021 14 – RADIOACTIVE WASTE AND CONTAMINATED SITES AND SOILS
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