Congress moves to bar EPA from using IRIS risk assessments in rules, enforcement, permits, and pollution mapping tools
A house committee must act next: committee consideration.
No action since February 2025
This bill’s path across every version that has carried it.
Reintroduced
Reintroduced from H.R. 7284 (118th), which died when its Congress ended.
H.R. 7284 (118th) →How this policy affects specific groups of people
Referred to the Subcommittee on Water Resources and Environment.
Sent to a congressional committee for expert review. The committee decides whether this bill moves forward.
Referred to the Committee on Energy and Commerce, and in addition to the Committees on Agriculture, and Transportation and Infrastructure, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.
Sent to a congressional committee for expert review. The committee decides whether this bill moves forward.
Introduced in House
The bill was officially filed and given a number. It now enters the legislative queue.
ACC praises bicameral introduction of the No IRIS Act (S. 623 / H.R. 1415) to block EPA use of IRIS assessments in rulemakings and other regulatory actions, arguing it promotes transparent, high-quality science.
Reports on threats to EPA’s IRIS program amid EPA science reorganization; provides context for why legislation such as the No IRIS Act targets IRIS’ role in underpinning health-based regulations.
Discusses IRIS’ role in chemical risk decisions and notes the February 2025 No IRIS Act bills that would prohibit EPA from using IRIS assessments in rulemakings and other regulatory actions.
No votes or related bills recorded for this bill yet.
Document Type
Congressional Bill
Official Title
No IRIS Act of 2025
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