2026-05-29 | Instrução Normativa BCB 740The Central Bank of Brazil issued Instruction Normative No. 740 to establish the guidelines, conditions, and deadlines for production testing of the optimized payment initiation transaction service with data sharing within the Open Finance framework. The regulation mandates that participating institutions conduct limited production tests starting April 22, 2026, and make the service available to the general public by June 22, 2026, subject to specific technical and engagement criteria. It further details the mandatory integration with monitoring tools, bilateral behavior standards, and functional security testing requirements to ensure market stability and service quality.