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Better Standards. Better Results. Better Care.

Who We Are

The Clinical and Laboratory Standards Institute (CLSI) is a globally recognized not-for-profit standards development organization with over 24,000 individuals with membership access, 1,200 volunteers, and 250+ products. Our standards are recognized by laboratories, accreditors, and government agencies around the world as the best way to improve medical laboratory testing.

What We Do

Through the work of our volunteers, we facilitate the creation of best practice standards, guidelines, and products for medical laboratories. Organizations use CLSI standards to improve their testing outcomes, maintain accreditation, bring products to market faster, and navigate regulatory hurdles. Our products focus on the following specialty areas:

  • Automation and Informatics
  • Clinical Chemistry and Toxicology
  • General Laboratory
  • Hematology
  • Immunology and Ligand Assay
  • Method Evaluation
  • Microbiology
  • Molecular diagnostics
  • Newborn Screening
  • Point-of-Care Testing
  • Quality Management Systems
  • Veterinary Medicine


Why We Do it

Because every patient deserves the best. CLSI is a community committed to better medical laboratory test results. Our mission is simple: to develop clinical and laboratory practices and promote their use worldwide. Our vision: setting the standard in laboratory medicine for a healthier world, explains the why.

How We Do it

Our Volunteers

Through a consensus-based process, CLSI’s standards are developed and written by volunteer committees of leading experts in the field of laboratory medicine. Our volunteer committees share information from their own laboratory work to create documents used by the medical laboratory community to improve processes, pass and maintain accreditation, meet regulatory requirements, and more.

Our Members

Our members help support volunteer committee work and encourage their staff to participate on document development committees. Members are also asked to review, comment, and vote on CLSI documents before they are published—ensuring that the document development process is fair and unbiased, and that everyone has a seat at the table.

Global Partnerships

Through our Partnerships program, CLSI provides international outreach services and hands-on support to laboratories around the world, helping them achieve sustainable quality with systems to better diagnose and treat patients with infectious diseases.

More About Us

Our Board of Directors


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