The Clinical and Laboratory Standards Institute (CLSI) is a globally recognized not-for-profit standards development organization with over 24,000 individuals with membership access, 1,200 volunteers, and 250+ products. Our standards are recognized by laboratories, accreditors, and government agencies around the world as the best way to improve medical laboratory testing.
This guideline provides information for characterizing the linearity interval of a measurement procedure, validating a linearity interval claim (to be performed by the manufacturer), and verifying an established linearity interval claim (to be performed by the end user).
This guideline helps laboratories understand, apply, track, and manage the different types of quality costs that affect their processes, services, and financial well-being.
This standard provides procedures for collection of capillary blood specimens. Specifications for collection sites, puncture depth, and disposable devices used to collect, process, and transfer capillary blood specimens are also included.
Earn P.A.C.E.® credits with this self-paced online learning program that will give you the knowledge and skills necessary for successful implementation and sustainment of a quality management system in your lab.
Browse our collection of consensus-based medical laboratory standards and guidelines. Choose from print or electronic versions.
CLSI offers high-quality eLearning programs that give you access to the best training anywhere and anytime. We offer on-demand webinars, live webinars, and online certificate programs. Learn from laboratory experts and earn P.A.C.E.® CE Credits today.
We have compiled a list of helpful documents for the lab community’s use during the COVID-19 pandemic. You can view these documents, learn how they help with COVID-19 testing, and access sample pages. Plus, some CLSI documents are free for a limited time.
Our members help support volunteer committee work and encourage their staff to participate on document development committees. Members are also asked to review, comment, and vote on CLSI documents before they are published—ensuring that the document development process is fair and unbiased, and that everyone has a seat at the table.
Through a consensus-based process, CLSI’s standards are developed and written by volunteer committees of leading experts in the field of laboratory medicine. Our volunteer committees share information from their own laboratory work to create documents used by the medical laboratory community to improve processes, pass and maintain accreditation, meet regulatory requirements, and more.
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. Organizations use CLSI standards to improve their testing outcomes, maintain accreditation, bring products to market faster, and navigate regulatory hurdles.
Through our Partnerships program, CLSI provides international outreach services and hands-on support to laboratories around the world, helping them achieve sustainable quality with systems to better diagnose and treat patients with infectious diseases.