Region B Professional Sections
- B001 - Kern County
- B002 - Los Angeles
- B003 - Orange County
- B004 - San Buenaventura Section
- B005 - San Diego County
- B006 - Phoenix
- B007 - Tucson
- B008 - Central New Mexico
- B009 - Greater Salt Lake
- B010 - Las Vegas Valley
- B011 - Central Coast
- B012 - Antelope Valley
- B049 - Members At Large
Region B Collegiate Sections
- B050 - University of Arizona
- B051 - Arizona State University
- B052 - Brigham Young University
- B053 - University of California, Irvine
- B054 - University of California, Los Angeles
- B055 - University of California, San Diego
- B056 - University of California, Santa Barbara
- B057 - California Institute of Technology
- B058 - California Polytechnic State University, Pomona
- B059 - Cal Poly, San Luis Obispo
- B060 - California State University, Fullerton
- B061 - California State University, Long Beach
- B062 - California State University, Los Angeles
- B063 - California State University, Northridge (CSUN)
- B064 - Harvey Mudd College
- B065 - Loyola Marymount University
- B066 - University of New Mexico
- B067 - New Mexico State University
- B068 - Northern Arizona University
- B069 - San Diego State University
- B070 - University of Southern California
- B071 - University of Utah
- B072 - Utah State University
- B074 - University of Nevada at Las Vegas
- B075 - University of San Diego
- B076 - New Mexico Inst. Mining & Tech
- B077 - DeVry University, Phoenix
- B078 - Weber State University
- B079 - University of California, Riverside
- B080 - Embry-Riddle Aeronautical