| Abbreviation | Definition |
|---|---|
| CLCSM | Certified Lead Customer Satisfaction Manager |
| CLD | Certified LabVIEW Developers |
| CLD | Certified Lighting Designer |
| CLE | Certified Law Enforcement |
| CLFE | Certified Lead Forensics Esaminer |
| CLHT | Certificate in Leadership for the Healthcare Transformation |
| CLIE | Certified Large Institution Examiner |
| CLIS | Certificate of Library and Information Science |
| CLLO | Certificate in Lower Limb Orthotics |
| CLLP | Certificate in Lower Limb Prosthetics |
| CLLP | Certified Linked Learning Pathways |
| CLMR | Certified Lighting Manufacturer's Representative |
| CLN | Certificate of Loss of Nationality |
| CLNR | Certified Like New Replacement |
| CLOA | Certificate of Land Ownership Award |
| CLPE | Certified Latent Print Examiners |
| CLRL | Certified Labor Relations Leader |
| CLRP | Certified in Life Resource Planning |
| CLSA | Certified Lead System Architect |
| CLSC | Certified Lactation Specialist Course |