Research ReportCRS In FocusVersion 2
IF11680
U.S. Environmental Protection Agency’s Integrated Risk Information System (IRIS): Toxicity Assessment of Chemicals
Published Sep 12, 2022Updated Jun 20, 2025
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What this is
The Congressional Research Service is a nonpartisan policy and legal analysis arm of the Library of Congress. CRS reports are written for members of Congress and their staff, not the public — but they’re made available openly through Congress.gov.