With the enactment of the Brazilian Arbitration Act, three sets of rules of different degrees of specificity came to coexist in harmony: (i) the general rule, which requires compliance with arbitration when agreed upon by the parties; (ii) the specific rule, applicable to generic adhesion contracts, which restricts the effectiveness of the arbitration clause; and (iii) the even more specific rule, applicable to contracts subject to the Brazilian Consumer Protection Code, whether adhesion contracts or not, imposing the nullity of any clause that mandates the compulsory use of arbitration, even if the requirements of Article 4, § 2º, of Law No. 9.307/96 are met: