Western Region
National Regions:
Western Region:
- Alpha West
- Greater Northwest
- Northern California
- Rocky Mountain
- Southern California
- Tri-State (Arizona, Nevada, New Mexico)
Tri-State District:
- Mu Eta - Arizona State University
- Sigma Psi - University of Nevada, Las Vegas
- Tau Sigma - University of New Mexico
- Delta Tau Lambda - Phoenix, Arizona
- Eta Psi Lambda - Tucson, Arizona
- Theta Pi Lambda - Las Vegas, Nevada
- Iota Psi Lambda - Albuquerque, New Mexico
- Pi Zeta Lambda - Las Cruces, New Mexico