| Rank | Abbreviation | Meaning |
|---|
| ***** | ECATS | Electronic Compliance Assistance and Technical Support System
| |
| **** | ECATS | Enhanced Computer Active Technology Suspension
| |
| *** | ECATS | Environmental Compliance & Tracking Software
| |
| *** | ECATS | Early Childhood Assessment and Teaching Services
| |
| *** | ECATS | Electronic Collection of Air Transportation Statistics
| |
| *** | ECATS | Electronic Compliance Assistance and Technical Support
| |
| ** | ECATS | Eads Cognac Aviation Training Services
| |
| ** | ECATS | Estudos de Ciência: Arte, Tecnologia e Sociedade
| |
| * | ECATS | Enterprise Corrective Action Tracking System
| |
| * | ECATS | Expendable Computerized Automatic Test System
| |
| * | ECATS | Environmental Compatible Air Transport System
| |
| * | ECATS | Emergency Call Tracking Systen
| |
| * | ECATS | Environmental Compliance Awareness Training Survey
| |
| * | ECATS | Existing Chemicals Assessment Tracking System
| |
| * | ECATS | Environmental Consulting and Training Services
| |
| * | ECATS | Environmentally Compatible Air Transport System
| |
| * | ECATS | Enterprise Corporate Analysis Time Saver
| |
| * | ECATS | Electronic Combat Airborne Training System
| |
| * | ECATS | Electronic Commerce Assessment for Technical Standards
| |
| * | ECATS | Enhanced Customer Aligned Testing Services
| |