| Abbreviation | Definition |
|---|---|
| CEOI | Communications-Electronics Operating Instructions |
| CEP | Cable Entrance Panel |
| CEP | Casualty Evacuation Point |
| CEP | Circular Error Probability (defined as the radius into which a munition can be placed at least half the time) |
| CEP | Circular Error Probable |
| CEP | Communications Earplug |
| CEP | Concept Evaluation Program |
| CEPC | Chief Engineer Port Construction |
| CEPOD | Communications-Electronics POost-Deployment report |
| CEPS | Central European Pipeline System |
| CEPSARC | Concepts Evaluation Program Schedule and Review Committee |
| CER | Capability Evaluation Review |
| CER | comparative effectiveness review |
| CER | Comprehensive Evaluation Reports |
| CER | Cost Estimating Relationship |
| CERA | Composite Explosive Reactive Armour |
| CERDEC | Communication-Electronics Research and Development Engineering Center |
| CERDEC | Communications-Electronics Research, Development, and Engineering Center |
| CERF | Central Emergency Revolving Fund |
| CERFP | CBRNE (Chemical, Biological, Radiological, Nuclear, and Explosive) Enhanced Response Force Package |