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Setting the Standard for Clinical Laboratory Testing Quality

Our members, volunteers, and customers have made CLSI a respected leader in developing standards that improve the quality of patient care.

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Is Your Laboratory Prepared?

CLSI standards can help keep your laboratory safe! Prepare your laboratory with one of our leading clinical laboratory safety standards today.

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The latest news and releases from CLSI!

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Find High-Quality Standards and Guidelines Related to Your Profession

Each CLSI document focuses on different specialty areas, including laboratory basics, quality management systems, verification and validation, and information management.

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Why Use Our Documents?

  • Facilitate your laboratory’s accreditation preparedness.
  • Speed development of standard operating procedures.
  • Streamline product review processes with data packages that meet regulatory requirements.

Learn How to Put CLSI Standards Into Practice to Improve Quality

CLSI U is geared to meet the needs of busy laboratorians by providing a variety of resources that make participation in continuing education (CE) programs easy.

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Why Choose CLSI U?

  • Enhance comprehension and use of CLSI standards in the laboratory.
  • Learn from the experts who develop the standards.
  • Earn CE credits from P.A.C.E.®.

clsi u education resources

See all the educational opportunities and offerings available at CLSI U.

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Access Everything You Need to Achieve Excellence in Laboratory Testing

The value of a CLSI membership begins with significant discounts on our trusted clinical laboratory standards and guidelines, but the benefits extend far beyond cost savings.

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Why Join CLSI?

  • Receive up to 70% savings on CLSI products and programs.
  • Connect with 1,600+ organizations in the global laboratory community.
  • Actively collaborate on CLSI standards development.

membership special

CLSI membership is not only applicable to organizations, individuals are now about to join!

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Maximize Your Voice in the Global Health Care Community

Volunteering with CLSI gives you an unmatched opportunity to contribute your expertise to improve the quality of laboratory testing and health care worldwide.

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Why Volunteer?

  • Take part in developing the standards that affect the work you do each day.
  • Provide hands-on support services that can help save lives.
  • Enrich your professional career and resumé while making a personal impact.


Explore volunteering for Standards Development or Global Health Partnerships.

Call for Volunteers

2015 Membership Special

Become a member today and receive
$100 OFF your membership!
Use promo code 100MEM
to sign up as a member today!

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March Committee Week

What are Committee Weeks?


Learn more about why the 2015 Leadership Conference has changed to a March Committee Week!


March 16-20, 2015 | Arlington, Virginia, USA

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A Message From the President
Read the latest message from CLSI President Greg Miller, PhD.

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Are You Looking for Information Regarding FDA Proposed Requirements for Laboratory-Developed Tests (LDTs)?

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Featured Video on The Cost of Quality

Luann Ochs

  • Recent News
  • Published Articles


Changes Regarding Voting Member Status on Antimicrobial Susceptibility Testing and Antifungal Susceptibility Testing Subcommittees and Specific Associated Working Groups

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CLSI Publishes a New Practical Guide for the Laboratory on FDA’s Quality System Regulation for Laboratory-Developed Tests

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Everything You’ve Always Wanted to Know About the Care and Upkeep of Clinical Laboratory Equipment

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QMS: A Model for Laboratory Services GP26-A4

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Read sample pages of CLSI documents in our online shop!

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Learn more about CLSI Document QMS20-R!

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EP23™ Online Workshop: Risk-Based Tools to Meet IQCP Requirements

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