Following the decision of the Flemish government of 30 November 2016, the significance testing values for ammonia changes to the "appropriate assessment" on 1 July 2017. In order to map the effects of ammonia on Natura 2000 areas, the contribution of the company is assessed with regard to the carrying capacity of the vegetation that is located in the environment of the company within the Habitats Directive area. This is called the company's contribution to the critical burden for that type of vegetation.