American Society for Testing and Materials (ASTM) (www.astm.org) is a not-for-profit organization that provides a global forum for the development and publication of voluntary consensus standards for materials, products, systems, and services.
American Society of Heating, Refrigerating and Air-Conditioning Engineers (www.ashrae.org) is organized for the sole purpose of advancing the arts and sciences of heating, ventilation, air conditioning and refrigeration for the public's benefit through research, standards writing, continuing education and publications.
Building Codes Assistance Project (www.bcap-energy.org) is dedicated to assisting states in the development and implementation of statewide building energy codes. BCAP was established in 1994, as a joint initiative of the Alliance to Save Energy, the American Council for an Energy-Efficient Economy, and the Natural Resources Defense Council. BCAP is funded through grants from the Department of Energy and the Energy Foundation
Center of Excellence for Sustainable Development (www.sustainable.doe.gov/buildings/gbcodtoc.shtml) codes compilation provides resources and links to green building codes and ordinances throughout the country
Construction Specifications Institute (CSI) (www.csinet.org) is an individual membership technical society that provides technical information and products, continuing education, professional conferences, and product shows to enhance communication among all disciplines of nonresidential building design and construction. CSI has developed "MasterFormat", which is the most widely used format in the U.S. for nonresidential building specifications.