| Abbreviation | Definition |
|---|---|
| CER | Certified Emission Reduction |
| CER | Certified Emission Reductions |
| CER | Certified Emissions Reduction |
| CER | Certified Endoscope Reprocessor |
| CERA | Certified Enterprise Risk Actuary |
| CERF | Certified Emissions Repair Facilities |
| CERG | Certified in Enterprise Risk Governance |
| CERLAP | Certificate in Employment Relations Law and Practice |
| CERM | Certified Enterprise Risk Manager |
| CERM | Certified Executive Resume Master |
| CERP | Certified Ecological Restoration Practitioner |
| CERS | Certified Employee Retention Specialist |
| CERTIFIED | Certification |
| CES | Certified Enrollment Specialist |
| CES | Certified Estate Specialist |
| CESM | Certified Environmental Systems Manager |
| CESO | Certified Expert Security Officer |
| CESP | Certified Employment Support Professional |
| CESP | Certified Equipment Support Professional |
| CET | Certified EKG Technician |