PO Box 633
Annapolis Junction,  MD  20701

United States

CLSI is a globally recognized not-for-profit standards development organization with over 24000 members, 1200 volunteers, & 250 products. Our standards are recognized by labs, accreditors, & government agencies as the best way to improve lab testing.

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  • (Nov 17, 2020)

    Through the work of our volunteers, we facilitate the creation of best practice standards, guidelines, and products for medical laboratories. Organizations use CLSI standards to improve their testing outcomes, maintain accreditation, bring products to market faster, and navigate regulatory hurdles. Our products focus on the following specialty areas:

    • Automation and Informatics
    • Clinical Chemistry and Toxicology
    • General Laboratory
    • Hematology
    • Immunology and Ligand Assay
    • Method Evaluation
    • Microbiology
    • Molecular diagnostics
    • Newborn Screening
    • Point-of-Care Testing
    • Preexamination Processes
    • Quality Management Systems
    • Veterinary Medicine

    Learn more, view our products, membership options, and volunteer opportunties at