In fiscal 2011, Sony launched the Green Star Program, an in-house system for assessing the environmental performance of Sony Group sites worldwide. Under the program—one of several initiatives designed to ensure achievement of the ultimate goal of Sony's "Road to Zero" global environmental plan—each site's activities are evaluated comprehensively through quantitative and qualitative assessments from four key perspectives: climate change, resource conservation, chemical substance management and biodiversity conservation. The achievement levels are indicated by number of stars. Implementation of the Green Star Program shows how well each site is performing and elucidates their strengths and weaknesses, thus indicating what needs to be done next. The program is useful as a tool for ongoing efforts to make improvements.
Sony's Green Management 2020 environmental mid-term targets run through fiscal 2020. Sony has been working to achieve them under updated evaluation standards since fiscal 2016. Progress against the mid-term environmental targets is indicated by up to as many as seven stars.