(3)Directive 96/82/EC has been instrumental in reducing the likelihood and consequences of such accidents thereby leading to a better level of protection throughout the Union. A review of that Directive has confirmed that the rate of major accidents has remained stable. While overall the existing provisions are fit for purpose, some changes are required in order to further strengthen the level of protection, in particular with regard to the prevention of major accidents. At the same time the system established by Directive 96/82/EC should be adapted to changes to the Union system of classification of substances and mixtures to which that Directive refers. In addition, a number of other provisions should be clarified and updated.