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CLSI Standards: Guidelines for Health Care Excellence

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

Browse our collection of consensus-based medical laboratory standards documents. Choose from print or electronic versions of CLSI standards and guidelines.

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Effective 04 January 2024, CLSI is pleased to offer Country-Based Pricing for customers who meet established economic criteria. Visit our Country-Based Pricing page for more information about this new program. Note: Discounted pricing is available only when a customer is logged in to his/her CLSI account.

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Control of Preanalytical Variation in Trace Element Determinations, 1st Edition

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Erythrocyte Protoporphyrin Testing, 1st Edition

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Medical Laboratories—Requirements for Quality and Competence: Changes from the Third Edition (2012) to the Fourth Edition (2022) Webinar

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Adverse and Nonconforming Events Solution Package- Electronic
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LQMS - Laboratory Quality Management System Certificate Program PKG
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AST Rationale Documents (Free)
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Proficiency Testing Solution Package- Electronic
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Basic Laboratory Safety Specialty Collection- Electronic
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Accreditation Preparedness -  Essentials for Verifying Test Performance- Electronic
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VET03Ed2PK20 VET03 and VET04 Package-Electronic
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