The Global Leader in Setting Clinical Laboratory Standards
The Clinical and Laboratory Standards Institute (CLSI) is a not-for-profit organization that develops laboratory standards worldwide. Our standards are recognized by laboratories, accreditors, and government agencies as the best way to improve medical laboratory testing.
CLSI by the Numbers
Individuals with membership access.
Products, standards, and guidelines.
Countries with CLSI members.
We improve patient care by bringing experts together to develop standards.
We facilitate the creation of best practice standards, guidelines, and products for medical laboratories by using the expertise of our volunteers. Organizations use CLSI standards to improve their testing outcomes, maintain accreditation, bring products to market faster, and navigate regulatory hurdles.
Our specialty areas include:
Automation and Informatics
Clinical Chemistry and Toxicology
Immunology and Ligand Assay
Quality Management Systems
What We Offer
We bring together the world’s savviest experts on laboratory standards—stay on the leading edge of the lab industry, and shape its future as a CLSI member.
Standards & Products
CLSI offers a range of standards, guidelines, implementation guides, webinars, trainings, and more.
CLSI’s standards are developed and written by volunteer committees of leading experts from around the world. You can get involved today.
Interested in laboratory-related topics? Read the latest news from CLSI.
Our Global Health Partnerships program provides hands-on support to laboratories around the world, helping them achieve sustainable quality and better treat patients with infectious diseases.
CLSI & ISO
The International Organization for Standardization (ISO) is an international body composed of representatives from various global standards organizations. CLSI is the American representative for the Technical Committee of the International Organization for Standardization, which means we are helping shape international lab standards with our colleagues in dozens of other countries. Clinical laboratory testing and in vitro diagnostic test systems. ISO/TC 212 is responsible for international standardization and guidance in the field of laboratory medicine and in vitro diagnostic test systems.
Leadership & Resources
Board of Directors
Learn more about the board of directors, their mission, and view each member’s profile.
Find important updates, industry news, and information on CLSI’s upcoming events.
Learn more about how CLSI is planning for the future.
Mission, Vision, & Values
Learn about the intentions and goals of CLSI that help guide our organization.
Search our FAQs to see if we can quickly answer your question.
Learn more about our organization and its purpose.