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The National Toxicology Program in RTP, NC will be open on Wednesday, December 12, 2018 and employees have the option for unscheduled leave or unscheduled telework.

Updates regarding government operating status and resumption of normal operations can be found on the National Institute of Environmental Health Services website.

BSC Meeting Update - December 11-12, 2018

Due to inclement weather, Day 1 of the Board of Scientific Counselors meeting (Tuesday, Dec 11) has been cancelled.

Day 2 of the meeting (Wednesday, Dec 12) will be held by webcast ONLY. The webcast will start at 10 AM EST.

Please register for the webcast on the BSC meeting webpage:
Celebrating 40 Years: Celebrate the Past, Embrace the Future

NTP Board of Scientific Counselors Meeting

December 11-12, 2018

Day 1 – (Dec. 11) – Cancelled
Day 2 – (Dec. 12) – Webcast Only


Molecular stucture of Sarin

Request for Comment

Draft NTP Monograph on the Systematic Review of Evidence of Long-Term Neurological Effects following Acute Exposure to the Organophosphorus Nerve Agent Sarin.

Request for
Public Comments

Cell phone

Radio Frequency Radiation

Final NTP reports now available from rat and mouse studies of radio frequency radiation used by cell phones.

More info

NTP update newsletter

December NTP Update

Information about recent NTP activities and events.

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Toxicology in the twenty first century


The Tox21 Program characterizes potential toxicity of chemicals using cells and isolated molecular targets instead of laboratory animals.

Learn About Tox21



Assesses evidence that environmental substances may cause health effects.

More About OHAT

About NTP

Science you can depend on for decisions that matter.

The National Toxicology Program provides the scientific basis for programs, activities, and policies that promote health or lead to the prevention of disease. Founded in 1978, NTP plays a critical role in generating, interpreting, and sharing toxicological information about potentially hazardous substances in our environment. NTP strives to remain at the cutting edge of scientific research and the development and application of new technologies for modern toxicology and molecular biology.

A world leader in toxicology research, NTP has evaluated more than 2800 environmental substances for potential human health effects.

Learn More About NTP