Código Civil y Comercial Arts. 19-21 on Personhood
Article 19 of the Argentine Civil and Commercial Code provides that legal existence begins at conception. Article 20 establishes a rebuttable presumption that pregnancy lasts no more than 300 days and no fewer than 180 days, not counting the day of birth. Article 21 states that the rights and obligations of a conceived or implanted person vest irrevocably if the child is born alive. If the child is not born alive, the law treats the person as never having existed. The law presumes live birth unless proven otherwise.