Clinical Laboratory Improvement Amendments (CLIA)

Proposed CLIA Rule to Revise Proficiency Testing Regulations

Ready? Set? Test?

CLIAC Spring Meeting

The Clinical Laboratory Improvement Amendments of 1988 (CLIA) regulations include federal standards applicable to all U.S. facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. CDC, in partnership with CMSexternal icon and FDAexternal icon, supports the CLIA program and clinical laboratory quality. Learn more about CLIA.

Clinical Laboratory Improvement Advisory Committee (CLIAC)

Find information about the Clinical Laboratory Improvement Advisory Committee (CLIAC), which is managed by the Centers for Disease Control and Prevention (CDC), provides scientific and technical advice and guidance to the Department of Health and Human Services (HHS).

Get Answers to CLIA Related Questions

CDC does not issue CLIA certificates or process fee payments. Please contact your state agency for assistance. To obtain their contact information, please visit the State Agency and Regional Office CLIA Contacts Web pageexternal icon. Send an email to

Proposed CLIA Proficiency Testing Rule

Find out about the proposed rule and where you can read and comment on it.

Page last reviewed: April 4, 2019
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