Article 1210: Selection of rights by the parties to the treaty

1. The parties to a treaty may, at the time of the conclusion of the treaty or thereafter, choose by agreement among themselves the right to be applied to their rights and obligations under that treaty. 3. The choice of the law to be applied must be expressly expressed or must be clearly derived from the terms of the contract or from the totality of the circumstances of the case. The right created after the conclusion of the contract is retroactive and is considered valid, without prejudice to the rights of third parties and the validity of the transaction in terms of the form requirements, from the time of the conclusion of the contract 4. The parties to the treaty may choose the law to be applied both for the treaty as a whole and for parts thereof. the rule of law all substantive circumstances of the parties relate only to one country, the choice by the parties of another country ' s law may not affect the operation of peremptory norms of that country ' s law. 6. Unless otherwise determined by law or by the substance of the relationship, the provisions of paragraphs 1 to 3 of this article shall be applied, respectively, in accordance with change to the choice by agreement of the parties of a right to be applied to a non-contract-based relationship where such a choice is permitted by law.