Senator Sheldon Whitehouse, Ranking Member of the Senate Committee on Environment and Public Works, submitted an amicus curiae brief on Mar. 11 to the United States District Court for the District of Columbia in support of a lawsuit against the Trump Administration. The lawsuit challenges President Trump's decision to exempt multiple facilities from a Clean Air Act rule that limits hazardous air pollutants.
The issue centers on the Hazardous Organic NESHAP (HON) Rule, which sets standards for controlling pollutants known to cause cancer and other health risks. Congress allows presidential exemptions only in emergencies when required technology is unavailable and national security is at stake. Whitehouse said President Trump's July 17, 2025 proclamation mass-exempted 50 facilities without providing evidence or justification as required by law.
"The HON Proclamation is a cartoon version of presidential authority, in which none of the work has been done to connect cause to effect, rule to consequence, or regulation to injury, let alone distinguish among varied products, processes, or facilities. The Proclamation replaces the honest work of analysis with incantation of feigned, conclusory assertions," wrote Whitehouse in his brief.
Since that initial action, six more proclamations have exempted over 180 facilities. "This cookie-cutter approach reduces the Section 7412(i)(4) exemption process to farce. It is plainly at odds with the way Congress designed the statute to work and its goal of protecting Americans from the most dangerous air pollutants. The Court is not powerless to prevent such absurdity," Whitehouse said.
Whitehouse concluded that President Trump "acted in flagrant disregard of the statute and without proper authority. This Court should say so. Otherwise, nothing stands in the way of the President disregarding Congress and aggrandizing power to himself by the mere recitation of the statutory standard, with none of the work of actual compliance."
The Senate Environment and Public Works Committee maintains its administrative base in the Senate Dirksen Office Building to support hearings and operations according to its official website. The committee oversees federal programs related to environmental quality, natural resources and infrastructure according to its official website. Shelley Moore Capito chairs this committee alongside members including Kevin Cramer and Cynthia Lummis according to its official website. The committee handles legislation affecting environmental and infrastructure matters nationwide according to its official website and influences federal policy on regulations concerning wildlife protection and infrastructure maintenance according to its official website. Subcommittees collaborate on clean air issues as well as water resources and transportation infrastructure according to its official website.
Observers will be watching how this legal challenge unfolds as it could set important precedents regarding executive authority over environmental protections.
