Book One: Obligations · Section Two: Effects of the Obligation · Chapter One: General Provisions
If a right lacks legal protection for any reason, it shall not be subject to compulsory enforcement and shall become a natural obligation incumbent upon the debtor. If the debtor voluntarily performs it, such performance shall be valid and shall not be regarded as a donation, an undue payment, or performance of an obligation that is not due.
Interpretation and application must be checked against the official text and current version.
