An official website of the United States government.

Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Environmental Modeling Community of Practice

Center for Exposure Assessment Modeling (CEAM) Information Sources

The following links provide access to EPA Center for Exposure Assessment Modeling (CEAM) information sources.

About CEAM

Frequent Questions

CEAM Discussion

Related Links

Distribution and Support Policy

Recent Additions

Contact Information