HHS Certified Laboratories and IITFs for Federal Workplace Urine and Oral Fluid Drug Testing

The U.S. Department of Health and Human Services (HHS) has published its current list of laboratories and Instrumented Initial Testing Facilities (IITFs) that are certified to conduct federally mandated workplace drug testing. These entities meet the minimum standards established under the Mandatory Guidelines for Federal Workplace Drug Testing Programs. The notice covers two testing modalities: urine-based drug testing, for which both laboratories and IITFs are certified, and oral fluid (saliva) drug testing, for which only laboratories hold certification at this time. This distinction reflects the current regulatory framework and the differing maturity of testing technologies across specimen types. Federal agencies and their contractors are legally required to use only HHS-certified facilities when conducting workplace drug testing under federal mandates. The published list serves as the authoritative reference for compliance purposes, and agencies must verify that any laboratory or IITF they engage appears on the current certified list. This is a routine administrative notice and is updated periodically as certifications are granted, renewed, or revoked. It does not introduce new policy but ensures transparency and public access to the current roster of approved testing entities.

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