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U.S. Department of Health & Human Services U.S. Department of Health & Human Services National Institutess of Health National Institutes of Health

Register for the Challenge

Eligibility & Criteria


Participants are not eligible for an award and are discouraged from submitting a model for the challenge if the participant has an active, signed research partnership agreement with any of the Tox21 partners that provided access to pre-published Tox21 Phase II data (including assay summary activity files, assay description files, concentration response data files, and chemical library and structure files).

NCATS employees are ineligible to register for the challenge. All others are encouraged to participate.