Founded in 1971, Experimental Pathology Laboratories, Inc. (EPL) is a private, employee-owned U.S. company that is recognized internationally for its ability to meet the needs of the scientific community and the challenges of safety testing with high quality, on-time toxicologic pathology services. Valued for its objectivity and responsiveness, EPL has become the premier source for expert toxicologic pathology evaluation and consultation for industry and government. By design, EPL’s services are more highly focused than the typical complex and bureaucratic full-service Contract Research Organization (CRO). Consequently, we are able to offer a unique combination of responsive, personal attention and wide range of expertise concerning toxicologic pathology. Our resources include a staff of 100 highly-trained and experienced veterinary pathologists, histotechnologists, technical personnel and dedicated quality assurance staff who are supported by outstanding information technology systems and state-of-the-art laboratories. Regardless of the location, scope or time-sensitive needs of a study, EPL offers the benefits of a classic “scale without mass” approach – delivering the highest level of scientific quality in the most cost-effective manner. EPL Services • Toxicologic Pathology • Necropsy Services • Mammalian, Avian and Aquatic Histology • Mammalian Pathology • Avian and Aquatic Pathology Special Pathology • Histomorphometry/Image Analysis • Immunohistochemistry • Neuropathology • Medical Devices • Developmental and Reproductive Pathology • Electron Microscopy (TEM/SEM) • Ocular Pathology Consultation • Pathology Peer Review • Pathology Working Groups (PWG) • Scientific Advisory Panels • Regulatory Consultation • Training Seminars Toxicology Services • Study Monitoring and Data Auditing • Toxicology Study Design and Management • Report Preparation and Review • GLP Archiving & BioRepository Services • Laboratory Animal Veterinary Services EPL has developed procedures and systems that allow our staff to adjust to critical deadlines and client needs including a "checks and balances" system for histopathology data handling and workflow - from receipt of study material to report presentation. Our data and tissue tracking system is the cornerstone of our efficiency and productivity. EPL’s Pathology Peer Review System streamlines the peer review process and expedites finalization of regulatory reports and is unmatched in the industry. EPL was the first organization to offer necropsy, histology and pathology support at the client's site, as a seamless extension of a client's own capabilities. Each of these developments has improved the extent and quality of EPL's services and our ability to respond to client needs. Flexibility remains a core characteristic of EPL. Working closely with clients, we customize each project to meet the client's specific scie

1. Experimental Pathology Laboratories, Inc.
An employee-owned company
Founded 1971

2. EPL Background & Locations
• The premier source for contract GLP histopathology, toxicologic
pathology, and anatomic pathology services for industry and
government since 1971.
• Headquartered in Sterling, VA (near Dulles Int’l Airport)
• Modern Histology Laboratories in Sterling, VA and Research Triangle
Park, NC
• State of the art BioRepository located in Research Triangle Park, NC

3. Histology Services
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Histologic Preparation of Animal Tissues
Histologic Preparation of Fish and Invertebrates
Plastic Embedding and Thin Sectioning
Immunohistochemistry

4. Pathology Services
• On-site Necropsy Services
• Gross and Microscopic Pathology
• Mammalian, Avian, and Aquatic Histopathology
• Invertebrate Histopathology
• Morphometric Evaluation and Image Analysis

5. Special Pathology
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Stereology / Histomorphometry / Image Analysis
Photomicroscopy
Neuropathology
Medical Device Pathology
Developmental and Reproductive Pathology
Electron Microscopy (TEM/SEM)

6. Pathology Consultation
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Pathology Materials Review
Pathology Peer Review
Pathology Working Groups (PWG)
Scientific Advisory Panels
Regulatory Consultation
Training Seminars

7. EPL BioRepository
• GLP Compliant Archiving
• Robust Backup Systems
• Storage Services
– Room Temperature
– Refrigerated
– Ultra Low (-20°C to -80°C)
– Liquid Nitrogen (-150°C to -190°C)

8. Personnel
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ACVP-Boarded Veterinary Pathologists - ACVP
Histology Technicians – many ASCP boarded
Registered QA Professionals (RQAP-GLP)
ABT-Boarded Toxicologists
Laboratory Animal Veterinarians