Decisions on identification and classification which affect an independent natural or legal person may be appealed. The ministry is the body of appeal in respect of decisions made by the National Security Authority. The National Security Authority may on its own initiative propose to a ministry that the ministry make a decision pursuant to the second paragraph. If the ministry does not make a decision in accordance with the proposal of the National Security Authority, the National Security Authority may submit the matter to the ministry which has overall responsibility for protective security work in the civilian sector or the ministry which has overall responsibility for protective security work in the defence sector for a final decision. The King may issue regulations on the identification of objects and infrastructure, and regulations on notification of the National Security Authority. Section 7-2.Classification of critical national objects and infrastructure Critical national objects and infrastructure shall be classified if fundamental national functions may be harmed if their functionality is reduced or they are subjected to vandalism, damage or unlawful seizure. The following classification categories shall be used: a) HIGHLY CRITICAL if critical adverse consequences could result b) CRITICAL if serious adverse consequences could result c) IMPORTANT if adverse consequences could result. The classification shall be based on a damage potential assessment, and the fundamental national functions supported by the object or infrastructure and the consequences of reduced functionality shall be specified. The reasons for the classification shall be included in the overviews of critical national objects and infrastructure prepared by the ministries and the National Security Authority. If part of an object or item of infrastructure has a higher classification than the rest of the object or item of infrastructure, that part shall be defined as an independent object or item of infrastructure. The King may issue regulations on the classification of critical national objects and infrastructure. Section 7-3.Protection of objects and infrastructure Undertakings shall implement necessary security measures to maintain an appropriate level of security. Such security measures may include a) physical, electronic, human or organisational barriers, 15/30