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        Licenses and Accreditation

        CLIA Compliance and CAP Proficiency Testing

        All Quest Diagnostics' testing locations are appropriately licensed/certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA 88) and as required by certain State laboratory licensure programs. In addition, Quest Diagnostics' Regional and Esoteric Reference Laboratories are accredited by the College of American Pathologists (CAP).

        Please refer to the Licensure Library below for accreditation and licensure information for each of our Esoteric Reference Laboratories, Regional Reference Laboratories, AmeriPath/DermPath Diagnostics Anatomic Pathology Laboratories, Clinical Trials Laboratories and Forensic Drug Testing Laboratories.

        Licensure Library

        Please select a laboratory location below to access their licensure.

        Laboratory Location

        Quest Diagnostics Esoteric Reference Laboratories

        Clinical Trials Laboratories

        Forensic Drug Testing Laboratories

        Quest Diagnostics has three Forensic Drug Testing Laboratories certified by SAMHSA, accredited by the College of American Pathologists, Forensic Drug Testing program: Lenexa, KS; Norristown, PA and Tucker, GA.


        Please call 1-866-MY-QUEST for additional information.