NRC Releases Report Reviewing EPA IRIS Process

On May 6, 2014, the National Research Council (NRC) announced the release of a new congressionally mandated report entitled, Review of EPA’s Integrated Risk Information System (IRIS) Process. The report finds that changes EPA has made to its IRIS process are “substantial improvements” and offers guidance and recommendations to further improve the program.

This report follows a 2011 review of EPA’s IRIS assessment for formaldehyde, which found deficiencies in the assessment and EPA’s assessment methods more broadly. Congress mandated that EPA implement the changes suggested in that report and tasked the National Research Council with reviewing those changes and suggesting additional modifications.

To read the National Academies’ press release on the report, visit
For the full report, visit