Management in the field of environmental protection and risk prevention has evolved to the increasing participation of all stakeholders in the decision-making process. It certainly results from the development of the Information society and the global increase of knowledge of the population, combined with the concerns of the populations related to a sustainable development of our civilization. Our "risk society", following the big industrial disasters (Flixborough, Tchernobyl, Bhopal, Challenger, and more recently AZF), has also developed a cautious attitude towards the role of the expertise when it comes to assessing risks, along with a question of the ability of science to give definite answers. This has lead in particular to the adoption of the Aarhus convention in 1998 and the evolution of several regulations in the developed countries. For example, in France the new law n°2003-699 of 30 July 2003 about the "prevention of the technological and natural risks and to the compensation for the damages" has introduced an important innovation into the process of technological risks prevention. This law has enabled the involvement of the stakeholders in the decision-making process related to risk prevention and has urged the development of specific tools to deal with the complexity of risk management issues, in particular for those related to land-use planning. As technical support to decision-makers in risk management from both public and private sectors, INERIS has played an important role for the evolution of the French risk management system. This paper describes an analysis on the difficulty to control major accident hazards in an evolving context where the industrial systems becomes more and more complex and where the expectations of the civil society has increased. Then, the authors describes how an integrated vision for industrial risk management has emerged in France and is being implemented in a new law adopted after the Toulouse disaster.