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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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What’s New in the 2024 CLSI Standards for Antimicrobial Susceptibility Testing?

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Addressing the Gaps in Defining, Detecting, and Reporting MDRO Webinar

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Get Current! Using the 2023 Breakpoint Implementation Toolkit to Update and Document AST Breakpoints

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Expanding CLSI Access with Health System Membership Webinar
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MM09: Modernizing Guidance for Clinical Sequencing: Human Genetic and Genomic Testing Using Traditional and High-Throughput Nucleic Acid Sequencing Methods Webinar

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Expanding CLSI Involvement at Your Organization Webinar
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January 2023 AST Education Session: Guiding Stewardship With Thoughtful Antimicrobial Reporting - An Updated Approach for 2023 Webinar
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Making the Most of Your CLSI Membership: For Delegates and Alternate Delegates Webinar

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Using EP14: Evaluation of Commutability of Processed Samples Webinar

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