CLSI Support

For immediate assistance or support, contact CLSI by any of the methods listed below:

Phone: +1.610.688.0100
Toll Free (US): 877.447.1888
Fax: +1.610.688.0700
E-mail: customerservice@clsi.org

CLSI Frequently Asked Questions (FAQ)

View our FAQs

Submit a Question Online

If you would like to submit a question to CLSI, please e-mail us at customerservice@clsi.org.