1. Home
  2. Laboratory Improvement
  3. Proficiency Testing

Proficiency Testing

Our comprehensive range of proficiency testing (PT)/external quality assessment (EQA) spans 16 disciplines—giving you the tools you need to verify the accuracy and reliability of your testing process.

Our wide-ranging PT/EQA portfolio spans clinical and anatomic pathology and incorporates both routine and esoteric programs. Each is designed, developed, and continuously reviewed by expert scientific committees to ensure its clinical relevance. As laboratory medicine evolves so does the breadth of what we offer—keeping you at the forefront of operational excellence and diagnostic confidence.

Our best-in-class PT/EQA programs allow you to compare your performance with some of the industry’s largest peer groups reinforcing confidence in your results, including:

  • Individual evaluations and participant summary reports that deliver actionable insights to ensure accurate results and high performance. 
  • Educational discussions written by our scientific committees that enhance your staff knowledge and competence.

Beyond PT/EQA, our suite of quality improvement programs and products help reduce risk and improve patient outcomes. These convenient solutions allow you to benchmark against peers, compare instruments, verify instrument calibration, assess staff competency, and more—a wealth of tools in support of your continuous improvement. Not only will you be able to strengthen your quality initiatives, but you’ll also be able to demonstrate compliance to accreditation requirements.

Proficiency Testing (PT) Programs

Surveys and Anatomic Pathology Education Programs

Laboratory medicine is changing at a rapid pace. Our comprehensive range of programs constantly evolve to keep you in step with these changes so you have more time for what matters most—accuracy in the laboratory.

ISO 17043 Accreditation for Proficiency Testing

The CAP is committed to providing the highest quality proficiency testing (PT) materials. Review our quality policy, scope, and certificate of ISO accreditation.

Learn more about ISO accreditation.

External Quality Assessment (EQA) for Laboratories Outside the US

Join more than 20,000 laboratories around the world and partner with us on your journey to achieve continuous quality improvements and higher standards of care for patients.

Start your journey


e-LAB Solutions Suite (ELSS)

Learn how ELSS, our portal to manage your laboratory improvement, and other tools integrate with our PT programs.

Direct Transmission of PT Results

Electronically transmit your quantitative PT results directly to us without manual entry.

Learn more

Sample Exchange Registry

Our Sample Exchange Registry connects laboratories performing testing where no formal PT is available.

Learn more

Anatomic Pathology Slide and Tissue Sample Donation Programs

Participate in programs that elevate the skills of pathologists and technologists.

Access Donation and Submission Forms

News and Updates

Regulatory Information

Stay informed and up-to-date with regulatory news as well as timely information about our PT programs.

Learn more


eAlerts provide need-to-know information about our laboratory improvement programs.

Learn more

Updated PT/EQA Program Packaging

The CAP updated packaging for some proficiency testing (PT) / External Quality Assessment (EQA) programs .

Learn more