Core Viewpoint - The Brazilian environmental agency Ibama has approved Petrobras' emergency response test in the Foz do Amazonas basin, contingent upon certain adjustments being made before full approval is granted [1] Group 1 - Ibama's approval is a significant step for Petrobras as it seeks to conduct emergency response tests in a sensitive environmental area [1] - The agency has outlined specific adjustments that Petrobras must implement prior to receiving full authorization for its operations [1]