Article 330. The concept of a penalty.
1. A penalty (fine, interest) shall be recognized as a sum of money determined by a law or contract that the debtor is obliged to pay to the creditor in the event of non-performance or improper performance of the obligation, in particular in case of delay in performance. Upon request for payment of the penalty, the lender is not obliged to prove the loss caused to him. 2. The creditor shall not have the right to demand the payment of a penalty if the debtor is not responsible for the failure to perform or improper performance of the obligation.
References to other articles of chapter 23. Ensuring the fulfillment of obligations: