Related Rule
Russian Federation
Practice Relating to Rule 9. Definition of Civilian Objects
The Russian Federation’s Regulations on the Application of IHL (2001) states:
civilian objects are objects that are not military objectives.
In case of doubt whether an object which is normally dedicated to civilian purposes is being used for military purposes, the object shall be considered a civilian object. 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 1.