Chapter 1: General Provisions of Contracts (Art. 1305-Art. 1317)
Chapter 2: Essential Requisites of Contracts (Art.1318)
Section 1: Consent (Art. 1319-Art. 1346)
Section 2: Object of Contracts (Art. 1347-Art.1350)
Section 3: Cause of Contracts (Art. 1350-Art. 1355)
Chapter 3: Forms of Contracts (Art. 1356-Art. 1358)
Chapter 4: Reformation of Instruments (Art. 1359-Art. 1369)
Chapter 5: Interpretation of Contracts (Art. 1370-Art. 1379)
Chapter 6: Rescissible Contracts (Art. 1380-Art. 1389)
Chapter 7: Voidable Contracts (Art. 1390-Art. 4102)
Chapter 8: Unenforceable Contracts (Art. 1403-Art. 1408)
Chapter 9: Void and Inexistent Contracts (Art. 1409-Art. 1422)