The National Agency of Petroleum, Natural Gas and Biofuels (ANP) granted Petrobras special authorization to sell marine diesel blended with 5% renewable vegetable oil, retroactively regularizing commercial operations since November 2025. This regulatory decision institutionalizes the use of renewable fuels in maritime transport, signaling progress in Brazil’s energy transition and the decarbonization of the naval sector. The final fuel regulation revision is expected by mid-2026, setting the stage for expanded biofuel integration.