- 19 - Article 45 Erection of ground installations and pillars shall not affect ownership. The proprietor shall not, in any case, be prevented from exercising the right to demolish or repair on condition that he informs the Ministry, in writing, one month, at least, prior to the start of works of building or demolition. If the proprietor does not carry out the building or demolition after the removal of the installation within one year as of the date of the written notification, the Ministry may restore the installations to their initial state and demand the proprietor for compensation for the damage, the expenses or the losses. Article 46 If the Ministry’s employees need to enter the property of the local councils to examine the set up of a line, they shall obtain a special permit from the competent local administrative authorities. Article 47 The Ministry shall repair the damages inflicted on the buildings or the railroads because of the installation of lines on them, or because of their lifting, maintenance or carriage. In such cases, the Ministry shall pay indemnities for the damages caused. Article 48 The claims for restitution shall be abated after two years as of the date of the end of works. Article 49