For the most current information on energy conservation code requirements, refer to the 2012 INTERNATIONAL ENERGY CONSERVATION CODE. This highly beneficial resource fosters commercial and residential energy conservation through efficiency in envelope design, mechanical systems, lighting systems, and through the use of new materials and techniques. Included in this version of the INTERNATIONAL ENERGY CONSERVATION CODE WITH ASHRAE (American Society of Heating, Refrigerating and Air-conditioning Engineers) Standards. With this comprehensive and cutting-edge coverage, it is a critical component to any user"s code products. Check out our app, DEWALT Mobile Pro™. This free app is a construction calculator with integrated reference materials and access to hundreds of additional calculations as add-ons. To learn more, visit dewalt.com/mobilepro.