Article 15
1. Electricity, gas, heat, refrigeration and the like shall be treated as tangible property. 2. Member States may regard the following as tangible property: (a) certain interests in immovable property; (b) rights in rem giving the holder thereof a right of use over immovable property; (c) shares or interests equivalent to shares giving the holder thereof de jure or de facto rights of ownership or possession over immovable property or part thereof.