Alfredo Fioritto, University of Pisa discusses the 'If and when'. Towards standard-based regulation in the reduction of catastrophic risks by looking at the recent eartquake that hit the historical town of L'Aquila. 1st HEC workshop on regulation. Emergency regulation under the thread of a catastrophe: a hard look at the volcanic ash crisis. A conference organised by Alberto Alemanno, HEC Paris. 10 & 11 november 2010. More info at http://www.albertoalemanno.eu