Assessment of the main purpose of a plant is made on the basis of facts existing at the time of that assessment, that is to say, on the capacity and function of that plant or, if the plant in question has not yet been built, on the basis of the plan in relation to which the application for an operating permit was made.
Tuleb täpsustada, et rajatise peamise otstarbe hindamisel lähtutakse hinnangu andmise ajal esinevatest faktilistest asjaoludest, nagu rajatise võimsus ja toimimine või kui rajatist ei ole veel ehitatud, võetakse aluseks projekt, mille jaoks käitlemisluba taotletakse.