| Abbreviation | Definition |
|---|---|
| CMTPT | Certified Myofascial Trigger Point Therapists |
| CNA | Certified Nut Amanda |
| CNE | Certification for Nurse Educators |
| CNE | Certified Negotiation Expert |
| CNE | Certified Novell Engineer |
| CNG | Certification Network Group |
| CNG | Certified Naturally Grown |
| CNI | Certified Novell Instructor |
| CNP | Certified Network Professional |
| CNP | Certified Nice Person |
| CNT | Certified Nutritional Therapist |
| COA | certification of authority |
| COC | Certification of Conformity |
| COCP | Crematory Operations Certification Program |
| CODA | Certified Ohio Dental Assistant |
| COE | Certified Ophthalmic Executive |
| COFR | Certification Of Financial Responsibility |
| COFR | Certification Of Flight Readiness |
| COHC | Certified Occupational Hearing Conservationist |
| COI | Certificate Of Insurance |