This joint statement is made by non-governmental organisations which support the ‘targeted revision’ of the UN Standard Minimum Rules for the Treatment of Prisoners. The Intergovernmental Expert Group Meeting (IEGM) in Buenos Aires, in December 2012, made significant progress. The organisations believe the next steps should include the extension of the mandate of the IEGM so it can continue its work, with a focus on discussing possible wording of a revised set of rules.