The Obligation of Obeying the Law as Related to Justice and Fairness. The question of obeying the law and of civil disobedience comes to bear, at first glance, on a secondary plane in the work A Theory of Justice by J. Rawls. Both of these questions however comprised the focal point of one or another of his first articles, which were to later be updated into this lengthy treatise. Nevertheless, his approaches changed as he revised his theory of justice such that in the aforementioned text they formed a whole which comprises what is known as the principles for individuals, "an essential part of any theory of justice", "the conception of justice as fairness is incomplete until these principles have been accounted for". This article aims to analyze Rawls's most relevant concepts and contributions regarding this matter based on the premise that they comprise a trial by fire for the theory of justice in its entirety. In particular, the study of obedience and of legal obligation affords the possibility of witnessing how Rawls abandons his contractualist assumptions and how he interweaves a tight mesh of duties leaving very little room for attitudes such as civil obedience, which, on the other hand, he recognizes as an institution of prime importance for stability and social progress.