Chapters in Region
- Albuquerque Scale Modelers - Albuquerque, New Mexico
- Centennial - Colorado Springs, Colorado
- CoMMiES - Aurora, Colorado
- Denver-Rob Wolf - Englewood, Colorado
- Ernest A Love - Prescott Valley, Arizona
- High Plains Modelers - Loveland, Colorado
- Phoenix/Craig Hewitt - Phoenix, Arizona
- Rocky Mountain - Superior, Colorado
- Salt Lake City - Salt Lake City, Utah
- Sonoran Desert Model Builders - Tuscon, Arizona
- ZIA Scale Modelers - Rio Rancho, New Mexico