EPA Transcriptomic Assessment Product (ETAP)

  • VOI Final Report

    EPA published the final report of the Value of Information (VOI) Case study of the EPA Transcriptomic Assessment Product (ETAP)!

    Access the Report

  • Final ETAP Reports

    The final reports summarizing both the scientific studies underpinning the ETAP and the scientific methods and processes used for developing ETAPs are now available.

    Read the Reports

ETAP is a human health assessment for chemicals lacking traditional toxicity testing data. Using transcriptomics, which measures gene activity, ETAP determines the daily dose of a chemical where there is likely no appreciable human health risk. It can provide this information in a timeframe of months rather than years.

  • Background

    a scientists handles chemicals

    Learn more about the background and methods for this assessment. 

    Learn About ETAP

  • Assessments

    Access finalized assessment reports.

    ETAP Assessments
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Last updated on April 28, 2025