The focus of this work is to provide insight into the potential greenhouse gas emissions savings by using natural gas in HDVs, assessing ways to optimise pathways, identifying research and technology innovation opportunities and any implication for the refuelling infrastructure. This has been achieved through comprehensive modelling of natural gas Well-to-Motion (WTM) pathways relevant for heavy duty vehicles (land - on and off-highway, and marine) based on a detailed review of each stage of the...