1991 : Act No. 91-1381 of 30 December 1991 [fr], the “Bataille Act”, on research into radioactive waste management.
1994-1996 : geological exploration programmes at four sites validated by the Government.
1998 : Meuse/Haute-Marne site selected by the Government for the construction of an underground laboratory.
2005 : Dossier 2005 submitted to the Government by Andra, demonstrating that it is both feasible and safe to build a deep geological repository within a 250 km² area around the underground laboratory. Dossier 2005 assessed by the ASN and the National Review Board and reviewed by international experts.
2005/2006 : Public debate [fr]organised by the French National Public Debate Commission on general management options concerning high-level and intermediate-level long-lived radioactive wastes.
2006 : Parliamentary debate held on long-term radioactive waste management strategy, followed by Planning Act 2006-739 of 28 June 2006, adopting reversible deep geological disposal as the solution for the long-term management of HLW and ILW-LL.
2007 : The Perennial Observatory of the Environment set up to describe the environment of the future repository prior to construction and to monitor changes throughout repository lifetime.
2009-2010 : To 30 km² underground zone (referred to as the zone of interest for detailed reconnaissance or “ZIRA”) proposed by Andra for carrying out studies for siting underground facilities. ZIRA approved by the Government after consulting the Nuclear Safety Authority, the National Review Board, elected officials and the Local Information and Oversight Committee.
Document package submitted to review bodies to outline the principal design, safety and reversibility options concerning the disposal facility.
2011 : Cigeo industrial design phase launched and interdepartmental land-use development plan prepared. After the public inquiry, authorisation granted to continue operating the underground laboratory until 2030.
2013 : Public debate held on Cigeo organised by the National Public Debate Commission.
Forecast calendar for the Cigeo licensing process :
2017 : Ciego construction licence application submitted by Andra.
2015-2018 : Construction licence application examined by the National Review Board, Nuclear Safety Authority notice issued and local authorities consulted for their opinions. Assessment carried out by the Parliamentary Office for the Evaluation of Scientific and Technological Choices. Act laying down the reversibility conditions of the repository. Andra licence application updated, examination by the Nuclear Safety Authority and public inquiry carried out prior to the Conseil d'Etat decree granting the construction licence for Cigeo.
Forecast calendar for the start of Cigeo operation if the construction licence is garented :
2021 : Construction work on Cigeo facilities started (excluding preparatory work).
2025 : Cigeo startup phase.