CMS Survey & Certification Memo #18-07 – CLIA Proficiency Testing Referral Categories

Attention:  Clinical Lab Directors and Managers On December 15, 2017, CMS published Survey & Certification memo #18-07, “Clinical Laboratory Improvement Amendments of 1988 (CLIA) Proficiency Testing (PT) Referral Categories.” Please follow the link below for the full CMS S&C Memo #18-07. Effective: Immediately Click here to read the full CMS S&C 18-07. Questions? Please contact us at

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