The Regulatory Proposal aims to establish the secondary regulations applicable to payment networks and their participants, in compliance with the provisions of the Law for Transparency and Regulation of Financial Services. Its objective is to update and strengthen the regulatory framework by defining terms that ensure interoperability, transparency, and security within these networks. To achieve this, maximum limits on interchange fees are established, competition and equitable access are promoted, and discriminatory practices are prevented. Additionally, the obligations of participants are reinforced, requiring them to implement business continuity plans, adopt robust information security measures, and comply with the corresponding regulatory reports. At the same time, the authorities' powers are strengthened to supervise, amend provisions, and sanction non-compliance, with the aim of protecting users and promoting the efficiency of the payment system