It is axiomatic that indicator systems are indispensable in informing the societal transition toward sustainability. However, our understanding of how sustainability indicators systems are linked to policy systems and processes is still limited. Using a 'policy orientation' as an analytical strategy, we investigate the processes surrounding the creation, diffusion, dissemination, and utilisation of sustainability indicators at the national scale of policy-making. Utilising an empirical case study of Malaysia, this paper seeks to answer two questions: How are indicators currently used in policy systems; and, have sustainability indicators had policy impacts in the past? The latter is addressed using policy learning as a frame of analysis.