Common user infrastructure (CUI) is crucial to accelerating industrial emissions reduction because it can help reduce the cost and complexity of decarbonisation projects, facilitate collaboration between different stakeholders and make projects more bankable, more quickly. This paper will discuss the headline opportunities and current challenges in developing CUI in Western Australia (WA). It will also cite industry examples where CUI has been implemented and highlight transferable learnings relevant to our local context. The paper will be of interest to anyone involved in the energy industry in WA, including investors and legislators. Our oral presentation (with accompanying slide show) will include discussion of: the role of common user infrastructure in decarbonisation, the opportunities for CUI in WA, the current challenges of CUI in WA and learnings from industries/geographies where CUI has been implemented.