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About CLSI


clsi standards center

Developed by our members for use by the global laboratory community, CLSI’s consensus-based clinical laboratory standards are the most widely recognized resources for continually improving testing quality, safety, and efficiency. Discover why.

About Our Standards Development Process

standards development process

CLSI’s unique consensus process brings together experts from industry, government, and health care professions to develop timely standards recognized by laboratories, industry, accreditors, and regulators as the way to improve testing.

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Share Your Insights and Expertise

standards insights

Documents for Public Review

Share your comments on our current documents in process.

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Get Involved—Volunteer Today!

Don’t just follow the gold standard. Set it.

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About our Standards and Guidelines

Each CLSI document focuses on a different area of usage, from education to information management, laboratory basics, quality management systems, and verification and validation.

We also provide interactive products, companion tools, and bench aids based on these documents.

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New Featured Products

New Guideline:

Assessments: Laboratory Internal Audit Program; Approved Guideline

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Online Product:

An Interactive Searchable Database of Drug Selection, Interpretation, and Quality Control Procedures

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Revised Guideline:


Performance of Single Cell Immune Response Assays; Approved Guideline—Second Edition

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view online catalog

WorkspacePC_Print 1


CLSI is pleased to announce the launch of CLSI Workspace—our new electronic standards development platform that will replace the current Forums platform! This CLSI Workspace will give users the ability to develop, vote on, and comment on standards using a faster and easier-to-use solution.


Glen Fine Video

Glen Fine, CEO of CLSI, speaks about the need for and importance of standards in the clinical laboratory.


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