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This help page is divided into three sections:
  • User Guides: Tutorials and descriptions of different resources and procedures available from the CEBS site.
  • CEBS Bulletin: New and updated CEBS features and resources.
  • FAQs: Answers to questions commonly asked by CEBS users.
Still have a question? You can contact us at the following email address:

User Guides

User guides contain step-by-step instructions on how to use the different features of CEBS. These user guides are in a downloadable PDF format, so you can save them for later use. If you think we are missing any feature or scenario, please let us know and we will try to add it as time permits.

CEBS Bulletins

CEBS Bulletins are features recently implemented in the CEBS application. Each new feature is described with examples of how it can be used to enhance your research.
  • The NTP Data Collections Guided Search has been released: this application allows users to access various NTP datasets that are made available in a simple searchable and filterable table format. Data as well as search results can be downloaded to personal devices.
  • CEBS was updated on June 25, 2018 to include a consistent template with other NTP websites. The update has also incorporated "Data" links so that users can easily access full data sets for studies or NTP reports. If you have questions or comments please contact CEBS Support at
  • The Consortium Linking Academic and Regulatory Insights on BPA Toxicity (CLARITY-BPA) links federal guideline-compliant research and academic research to study the full range of potential health effects from bisphenol A. The guideline-compliant Core Study data are now available.
  • The CEBS Application Programming Interface (API) has been released: this tool provides programmatic access to the CEBS database, focusing on summarized findings of exposure factors.
  • The National Toxicology Program has been conducting experiments in rats and mice on potential health hazards from cell phone radiofrequency radiation. The complete results from all rat and mice studies are now available.
  • FDA Letter of Support to the HESI Committee on the Application of Genomics to Mechanism-based Risk Assessment is now available in the TGx-DDI Biomarker for DNA Damage Classification Tool.
  • CEBS database has been refreshed! Over 25 new studies are available, including 15 Genetic Toxicology - In Vivo Alkaline Comet Assay studies.
  • Organ Site and Neoplasia Guided Search has been updated! The appearance of this application has been updated along with more intuitive application navigation.
  • DNA Damage Classification Tool released: this tool enables users to predict the likelihood that a test article will cause DNA damage.


These FAQs feature questions we often receive from the CEBS user community.