A joint resolution providing for congressional disapproval under chapter 8 of…

This resolution invoked the Congressional Review Act (CRA), a 1996 law that gives Congress the authority to overturn federal agency rules through a simple majority vote in both chambers, subject to presidential signature or veto override. Specifically, it targeted an EPA rule that repealed the 'final rule' framework governing National Emission Standards for Hazardous Air Pollutants (NESHAP) for coal- and oil-fired electric utility steam generating units, commonly known as power plant air toxics rules. The original standards, finalized under the Obama administration, required power plants to limit emissions of mercury, arsenic, acid gases, and other hazardous air pollutants. The EPA's repeal rolled back those stricter requirements.

The constitutional basis for the CRA rests in Article I, Section 7 of the Constitution, which grants Congress authority over federal law, and in the non-delegation doctrine that allows Congress to reclaim regulatory authority it has delegated to executive agencies. The CRA process allows expedited Senate consideration with limited debate, making it a relatively fast legislative tool. However, a disapproval resolution still requires presidential signature, or a two-thirds override if vetoed, making it difficult when the administration that issued the rule is still in power.

The fiscal and economic stakes are significant on both sides. Power plant operators and coal-producing regions have long argued that strict NESHAP standards impose billions of dollars in compliance costs, threatening the economic viability of coal-fired generation and raising electricity prices for consumers and businesses. Supporters of the original standards cite EPA analyses estimating that the mercury and air toxics rules prevented tens of thousands of premature deaths annually and delivered public health benefits valued in the tens of billions of dollars, far exceeding compliance costs.

Historically, the power plant air toxics rules have been among the most litigated environmental regulations in U.S. history. The Supreme Court ruled in Michigan v. EPA (2015) that the EPA had failed to consider costs before issuing the original standards, leading to years of regulatory revisions. The Trump administration's repeal and subsequent Biden administration efforts to restore the rules reflect a long-running back-and-forth between administrations over the proper balance of energy production and public health protection.

Stakeholders affected include electric utilities, coal and oil producers, environmental and public health advocacy groups, workers in the energy sector, communities near power plants (particularly low-income and minority communities with higher exposure to air pollution), and ratepayers across the country who pay electricity bills influenced by regulatory compliance costs.

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Congress considered a joint resolution under the Congressional Review Act to block an EPA rule that had repealed strict federal limits on hazardous air pollution from coal- and oil-fired power plants. The original standards, known as the Mercury and Air Toxics Standards or MATS, required power plants to reduce emissions of mercury, arsenic, acid gases, and other pollutants linked to serious health effects. The EPA's repeal rule rolled back the legal foundation for those requirements. This resolution, if passed and signed into law, would have voided that repeal and effectively reinstated the stricter framework. The Senate voted 46 to 53 against moving forward, leaving the EPA's repeal intact.

Supporters of the disapproval resolution argued that the EPA's repeal abandoned vital public health protections that took years of scientific and legal work to establish. Environmental groups, public health advocates, and many Democratic senators contended that hazardous air pollutants from power plants cause measurable harm, particularly to children and communities living near industrial facilities. They pointed to EPA analyses estimating that the original MATS rule prevented thousands of premature deaths each year, and argued that Congress had both the right and the responsibility to restore those protections through the CRA process.

Opponents of the resolution, including many Republican senators and representatives of the utility and fossil fuel industries, argued that the EPA's repeal was legally grounded in the Supreme Court's 2015 Michigan v. EPA decision, which required the agency to weigh costs before imposing the standards. They contended that the compliance costs of the original rule were substantial, threatened the economic viability of coal generation, and contributed to higher electricity prices. Industry groups also warned that using the CRA to override the repeal would create regulatory whiplash and make long-term capital planning by utilities nearly impossible.

For ordinary Americans, the practical stakes center on two competing concerns: air quality and energy costs. People living near coal or oil power plants, especially in lower-income communities, are most directly exposed to the pollutants at issue and stand to benefit most if stricter standards are in place. At the same time, utilities subject to higher compliance costs may pass those expenses to customers through electricity bills. The Senate's rejection of the resolution means the EPA's repeal stands for now, though the broader regulatory history of these standards suggests further legal and administrative changes are likely as administrations change.