The LEED for Core and Shell Reference Guide is a user's manual that navigates a project from registration through successful certification of a high-performance core and shell project. It is written specifically to give power for making sustainable choices to developers, who have a limited sphere of influence in a speculatively developed building. The LEED for Core and Shell Reference Guide includes detailed information, resources, and standards for the credits covered in the LEED for Core & Shell Rating System Version 2.0. For each credit, the LEED for Core and Shell Reference Guide overview and points per credit, documentation requirements, summary of reference standard (where applicable), environmental importance, recommended design strategies and technologies, potential design synergies and trade-offs, economics (where available), calculation methods and formulas, and resources and definitions.