Professional & Trade Organizations   Government Agencies & Organizations
ACEC - American Council of Engineering Companies   ABAG - Bay Area Shaking Hazard Maps and Info
ACI - American Concrete Institute   CALTRANS - California Department of Transportation
AIA - The American Institute of Architects   DSA - California Division of the State Architect
AISI - American Iron and Steel Institute   FEMA - Federal Emergency Management Agency
AISC - American Institute of Steel Construction   ICC Evaluation Service, Inc.
AITC - American Institute of Timber Construction   IRC - Institute for Research in Construction (Canada)
APA - The Engineered Wood Association   NAHB Research Center
ARCAT   NEHRP - National Earthquake Hazards Reduction Program
ASCE - American Society of Civil Engineers   NIBS - National Institute of Building Sciences
AWC - American Wood Council   NIST - National Institute of Standards and Technology
AWPA - American Wood-Preservers' Association   NOAA - National Weather Service
BSSC - Building Seismic Safety Council   USDA Forest Service Forest Products Laboratory
CASE - Council of American Structural Engineers   USGS/ANSS Recent Earthquakes in the US
CRA - California Redwood Association   USGS - Current World Seismicity
CRSI - Concrete Reinforcing Steel Institute   TopoZone - The Web's Topographic Map
CUREE - Consortium of Universities for Research in Earthquake Engineering    
CWC - Canadian Wood CounciL    
LGSEA - Light Gauge Steel Engineers Association    
NCMA-National Concrete Masonry Association    
NRCA - National Roofing Contractors Association   Products
PCA - The Portland Cement Association   Aegis Metal Framing
PCI - Post-Tensioning Institute   Allan Block Retaining Wall Systems
SBIC - Sustainable Buildings Industry Council   Aurotek Base Isolators

SEAINT - Structural Engineers Association - International

  SmartBlock - American Conform
SEAONC - Structural Engineers Association of Northern California   AZEK Trim - Product Information
SIPA - Structural Insulated Panel Association  
SSPC - Steel Structures Painting Council    
WCLIB - West Coast Lumber Inspection Bureau    
WTCA - Wood Truss Council of America    
WWPA - Western Wood Products Association    
WWPI - Western Wood Preservers Institute