The study analyses the role of sectoral industry approaches to design commitments under a climate change regime either at sectoral or industry-level. It reviews existing sectoral approaches with a view of data collection on emissions on either an installation or (industrial) sector basis, and identify baselines or benchmarks set by the relevant (industrial) sectors using existing sectoral approaches including the Asia-Pacific Partnership Task Forces, assesses how the data can be used to set sectoral commitments or caps, and examines how sectoral commitments could facilitate formation of an inter-governmental agreement on setting of global caps.