| ASCP | American Society for Clinical Pathology |
| ATS | Fellow of the Academy of Toxicological Sciences |
| CEP | Certified Environmental Professional |
| CHES | Certified Health Education Specialist |
| CBiol | Chartered Biologist |
| CIH | Certified Industrial Hygienist |
| DABT | Diplomate, American Board of Toxicology |
| DABVT | Diplomate, American Board of Veterinary Toxicologists |
| DACVP | Diplomate, American College of Veterinary Pathologists |
| DRC Path | Diploma, Royal College of Pathologists |
| ERT | Registered Expert in Europe |
| FAACT | Fellow of the American Academy of Clinical Toxicology |
| FACMT | Fellow of the American College of Medical Toxicology |
| FAHA | Fellow, American Heart Association |
| FCP | Fellow of the American College of Clinical Pharmacology |
| FRC Path | Fellow of the Royal College of Pathologists |
| IATP | International Academy of Toxicologic Pathology |
| MIBiol | Member, Institute of Biology |
| MRC Path | Member, Royal College of Pathologists |
| MRCVS | Member of the Royal College of Veterinary Surgeons |
| RAC | Regulatory Affairs Certification |
| RPh | Registered Pharmacist |