A special regulation has as object the civil liability for nuclear damages representing a variety of the damages caused to the environment. Our research destined to the objective fundament of the liability for nuclear damages, aims at analyzing the special conditions of engaging this liability, occasion for a short presentation of a juridical regime specifically shaped and based on the Conventions from Paris (1960) and Vienna (1963). The two regulations existing at the international level dedicated a series of general mutual principles of the civil liability for nuclear damages, which confers it a special character; principles applied in the internal law by Law no. 703/2001, referring to the civil liability for nuclear damages. In defining the nuclear damage one takes into consideration not only the damage suffered by the human being and his goods, but also those suffered by the environment, by including the costs of recovery measures, if its deterioration is significant, following as much as possible, a restoration of the previous situation.