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The NTP website may be intermittently unavailable Saturday, April 1, 2023 between the hours of 5:00 PM and 9:00 PM EDT due to scheduled maintenance.

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News & Events

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NTP Board of Scientific Counselors Meeting

May 4, 2023
Webcast

MEETING DETAILS

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March NTP Update

Information about recent NTP activities and events.

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Toxicology in the twenty first century

Tox21

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

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Noncancer Health Effects

NTP is assessing evidence that environmental substances may cause noncancer health effects.

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Calendar & Events

Mark your calendar for upcoming meetings, workshops, seminars, symposiums, webinars, and other events hosted by NTP.

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What is NTP?

NTP develops and applies tools of modern toxicology and molecular biology to identify substances in the environment that may affect human health.

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Report on Carcinogens
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Publications
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NICEATM: Alternative Methods
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CEBS: All Study Data

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Substance Search

Search all substances studied by NTP:

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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