Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

News and Updates

 Study Updates

As of September 2021, the Environmental Polymorphisms Registry (EPR) has been renamed the Personalized Environment and Genes Study (PEGS). This rename reflects the expanded scope of the study in data, research and analyses.

Newsletters

Publications

To read the published scientific findings using the PEGS data, please visit the NIEHS PEGS website.

Last Reviewed: December 19, 2024