Welcome to NIEHS
The National Institute of Environmental Health Sciences is one of the 27 institutes and centers that makes up the National Institute of Health, which is part of United States Department of Health and Human Services. Our mission is to discover how the environment affects people and to promote healthier lives.
![the niehs director speaking at a podium](/https/www.niehs.nih.gov/sites/default/files/cards/2023-06/img844831.jpg)
Office of the Director
Learn about the women and men who are providing the leadership and direction to fullfill NIEHS' research mission.
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![NIEHS Values: Workforce, Innovation, Collaboration, Communication, and Distributive Leadership](/https/www.niehs.nih.gov/sites/default/files/cards/2023-06/img_hd942538.jpg)
NIEHS Values
Strong leadership, innovation, collaboration, communication, and workforce diversity are our keys to success.
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![capitol building in the afternoon](/https/www.niehs.nih.gov/sites/default/files/cards/2023-06/img844844.jpg)
Congress
As a federal agency, NIEHS provides Congress with ongoing updates on research and funding provided by NIEHS. Find out more about our role in government.
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![flowchart mapping out a complex structure](/https/www.niehs.nih.gov/sites/default/files/cards/2023-06/img_hd844847.jpg)
Organizational Structure
The NIEHS organizational chart is provided in both a printable PDF version and list formats.