This book explains how in moving towards Cleaner Production, the Lean Production Philosophy can be applied to reduce carbon emissions in prefabrication - one major source of the Greenhouse Gas (GHG) emissions which contribute to global climate change. This book examines theories and principles in the Lean Production Philosophy to develop situation-based carbon reduction strategies for precast concrete manufacturers and contractors in terms of Site layout, Supply Chain, Production, Sks and Installation Management. It presents the empirical findings of surveys and case studies with managers and professionals working for precasters and contractors in Singapore, findings which provide good practical guidance for precast concrete manufacturers and contractors to achieve low carbon emissions and to perform better in many sustainability-based rating systems, such as the Singapore Green Labelling Scheme and the Building and Construction Authority (BCA) Green Mark Scheme.