NAHB Model Green Home Building Guidelines
Published in 2005, the NAHB Model Green Home Building Guidelines were written to serve as a voluntary "baseline" so that NAHB members could easily develop local green building programs. Focusing on new single-family homes, the Guidelines offer three levels of green building - Bronze, Silver, and Gold.

Green Home Building Rating Systems - A Sample Comparison
Green Home Building Rating Systems - A Sample Comparison (PDF) evaluates the costs and technical requirements of bringing two sample code-compliant production houses in different climate zones (Dallas & Washington, DC) into compliance at one point in time (January 2008) with three different green building rating systems: NAHB Model Green Home Building Guidelines, the National Green Building Standard version 2, and LEED for Homes