Ch.9 Assignment of rights, transfer of obligations, assignment of contracts, s.2: Transfer of obligations, Art.9.2.5
This commentary analyses Article 9.2.5 of the UNIDROIT Principles of International Commercial Contracts (PICC) concerning the circumstances under which the original obligor is discharged. According to Art 9.2.5, the obligee may discharge the original obligor or retain the original obligor as an obligor in case the new obligor does not perform properly. Otherwise the original obligor and the new obligor are jointly and severally liable. As a default rule, Art 9.2.5(3), which provides for the joint and several liability of the original and new obligor, applies unless the obligee has agreed to discharge the original obligor by virtue of Art 9.2.5(1) or (2). Art 9.2.5(3) stipulates that the obligee is not required to express a choice. If it remains silent, the default rule of joint and several liability applies. The burden of proof lies with the original obligor to provide persuasive evidence that it has been fully or partially discharged.