| CHAT | Camp Hill Accessible Transport 
| Others |
| CHAT | Carleton Hotline For Administration And Teaching
| Others |
| CHAT | Cat Horse And Tree
| Others |
| CHAT | Certificate of Higher Autopsy Training
| Others |
| CHAT | Cetacean Hearing and Telemetry
| Others |
| CHAT | Challenges in HIV AIDS Treatment
| Others |
| CHAT | Change Heal Act Together
| Others |
| CHAT | Chat Has All Types
| Others |
| CHAT | Chattahoochee and Gulf Railroad
| Others |
| ChAT | Checklist for Autism in Toddlers
| Others |
| CHAT | Chicago Harmony And Truth
| Others |
| CHAT | Chico High Active Teens
| Others |
| CHAT | Children Happy About Themselves
| Others |
| CHAT | Chilean Hungarian Automated Telescope
| Others |
| ChAT | Choline AcetylTransferase
| Others |
| CHAT | choline O-acetyltransferase
| Others |
| CHAT | Choosing Healthplans All Together
| Others |
| CHAT | Christmas Harms A Tree
| Others |
| CHAT | Church Heating And Toilet
| Others |
| CHAT | Church Hill Activities and Tutoring
| Others |
| CHAT | Church Hill Activities Tutoring
| Others |
| CHAT | Circadian Hyper Amplitude Tension
| Others |
| CHAT | Circadian Hyper-Amplitude-Tension
| Others |
| CHAT | Clifton Homework Activities And Tests
| Others |
| CHAT | Club of Hospitality And Tourism
| Others |
| CHAT | Colleague Hints And Tips
| Others |
| CHAT | Communication Has A Tool
| Others |
| CHAT | Communication Health Advocacy Therapy
| Others |
| CHAT | Communication Hearing And Talking
| Others |
| CHAT | Communications Hub And Transmitter
| Others |
| CHAT | Community and Health Awareness Teaching
| Others |
| CHAT | Community Health Analytics Training
| Others |
| CHAT | Community Health Assessment Team
| Others |
| CHAT | Community Hebrew Academy of Toronto
| Others |
| CHAT | Community Hospitality And Talk
| Others |
| CHAT | Completing Homework Assignments Today
| Others |
| CHAT | Computerized Home Aphasia Therapy
| Others |
| CHAT | Confident Happy Adolescents Talking
| Others |
| CHAT | Confidential Help and Advice for Teens
| Others |
| CHAT | Confidentially Helping All Teens
| Others |
| CHAT | Connecting Hearts All Together
| Others |
| CHAT | Consumer Hair Advisory Team
| Others |
| CHAT | Conversation Helps Adults Transition
| Others |
| CHAT | Conversational Hypertext Access Technology
| Others |
| CHAT | Craft, Health, Activities, and Timeout
| Others |
| CHAT | Crucial Habitat Assessment Tool
| Others |
| CHAT | Cultural Historical Activity Theory
| Others |
| CHAT | Curbing HIV AIDS Transmission
| Others |
| CHAT | Current Hot Apologetical Topics
| Others |