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M100 and M60 Free

With these read-only web versions of M100 and M60, you can now quickly reference the most trusted AST and antifungal breakpoints from anywhere with an Internet connection. Available online as a convenient companion to our M100 document and M60 document.

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This guideline discusses the necessary and recommended data for selecting appropriate breakpoints and quality control ranges for antimicrobial agents.

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VET08 Free

Quickly reference the most trusted AST veterinary breakpoint tables as a convenient, complimentary supplement to the AST VET01 document.


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AST Rationale Documents

Providing the scientific reasons behind breakpoint decisions.


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This report uses the “measurement procedure lifecycle” framework to aid users of CLSI evaluation protocols documents during establishment and implementation of measurement procedures developed by both commercial manufacturers and clinical laboratories, ie, for laboratory-developed tests.

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This report provides a standardized symbology for use throughout CLSI documents. Use of these standardized symbols is expected to be of great benefit to the CLSI readership, volunteers participating in CLSI committees, and the scientific community in general.

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