Legea aplicabilă contractelor definitive sau de formaţie progresivă

Rezumat

Ratione temporis, the contract, a planning and forecasting legal document, is completely and always subject to the applicable law upon its conclusion (Fr.C. von Savigny) – tempus regit contractum –, the new law not being able, without retroactivity, to amend, totally or partially, the conclusion conditions and its legal effects either.
Lex temporis contractus, respectively the tempus regit contractum principle govern, in principle, the anticipative or progressive contracts, the new law, insofar as it is applicable to the final contract, concluded according to a provisional or preliminary agreement (promise to contract), or, as the case may be, to the progressive contract (the option agreement, the contract concluded between the absent parties) having to observe the effects of the provisional (preliminary) contract or, as the case may be, the already achieved constituent elements of the successive contract and which, without any retroactivity, can neither reverse, nor amend.