Get in Touch with CLSI Today

We’d be happy to speak with you more about our products, programs, membership, and mission.

Address

Clinical and Laboratory Standards Institute
950 West Valley Road, Suite 2500
Wayne, PA 19087 USA

Phone Numbers

P: +1.610.688.0100
F: +1.610.688.0700
Toll Free (US): 877.447.1888
Customer Service phone hours
8:30 AM–5:00 PM Eastern (US) Time

Membership
membership@clsi.org

Customer Service, Orders, and General Questions
customerservice@clsi.org

Web Assistance
webmaster@clsi.org

Technical Questions
If you have technical questions regarding the content of CLSI standards and guidelines, please e-mail standard@clsi.org.