For the first time in US history, carbon emissions from certain power plants are now regulated. In April 2024, the Biden Administration’s Environmental Protection Agency (EPA) finalized carbon standards for existing coal- and new gas-fired power plants, following several years of public comment. The structure of the standards was likely influenced by the June 2022 Supreme Court decision in the West Virginia v. EPA case, which limited the power of the EPA to regulate power sector emissions by ruling that the agency does not have the authority to direct power plants to shift from one generation source to another, such as from fossil fuels to renewable energy.
As a result, the standards do not explicitly authorize generation shifting and instead set staggered compliance pathways based on several factors. For example, coal plants planning to operate beyond 2039 and new gas plants that run 40% of the time both need to meet a 90% carbon capture rate by 2032. Coal plants that retire before 2039 need to meet a 40% gas co-firing requirement by the start of the decade, whereas coal plants slated to retire before 2032 are exempt.
The Trump administration has proposed a repeal of these standards. Carbon emissions from the existing gas fleet remain unregulated.
The Biden Administration finalized the carbon standards for existing coal- and new gas-fired power plants in April 2024, following comments on the official proposal announced in May 2023. Previously, in February 2024, the agency announced that it would remove the existing gas rule from the original proposal and re-introduce a more comprehensive rule later in the year that would address the entire fleet of gas-fired turbines and cover more pollutants. Although there was a non-regulatory docket to receive input on the design and scope of such a rule, the EPA failed to propose a formal regulation on existing gas emissions before the Trump Administration took office.
In March 2025, the Trump Administration’s EPA announced its intention to repeal the finalized carbon standards, which it officially initiated months later in June 2025. The public comment period closed on August 7, 2025.
AT RISK – Comment period for proposed repeal closed on August 7, 2025.
AT RISK – Comment period for proposed repeal closed on August 7, 2025.
In separate 11 June press releases, the US Chamber of Commerce and the National Association of Manufacturers (NAM) celebrated the Trump administration's proposal to repeal the power plant carbon standards, which were finalized by the Biden administration in April 2024. The US Chamber stated that it "supports terminating the unworkable Clean Power Plan 2.0", while NAM CEO Jay Timmons called the proposed repeal a "critical and welcome step toward rebalanced regulations and American energy dominance." The proposal is open for comment until 7 August 2025, and reflects the Trump administration's latest in a series of regulatory rollbacks.
In an 11 June press release, Advanced Energy United CEO Heather O'Neill opposed the Trump administration's proposed regulatory repeal of the finalized power plant carbon standards. O'Neill emphasized the need to transition away from fossil fuel power plants, stating that "continuing to invest in and depend on these plants into the future will lead to more stranded costs and price volatility for consumers."
The standards, which were finalized by the Biden administration in April 2024, will soon be open for public comment as the Trump administration proposes to rollback all GHG emissions standards for the power sector under the Clean Air Act; as stated in the Environmental Protection Agency's press release, the Trump administration is "proposing that greenhouse gas emissions from fossil fuel-fired power plants do not contribute significantly to dangerous air pollution within the meaning of the statute."
Industry groups and state chambers of commerce, including the National Association of Manufacturers, the American Chemistry Council, the American Forest and Paper Association, the American Iron and Steel Institute, the American Wood Council, the National Mining Association, the National Propane Gas Association, the Steel Manufacturer's Association, and the Tennessee Chamber of Commerce and Industry, among others, released a joint letter on December 5th to incoming President Trump and his Cabinet selections advocating for the rollback of "restrictive regulations." The letter specifically requested for the new administration to repeal Biden's LNG export ban, replace the EPA's power plant rules for existing fossil fuel generators, pause updates to the Department of Energy's energy efficiency standards for appliances, and accelerate the permitting process for energy projects. The letter also criticized the US' position on the UN Global Plastics Treaty, emphasizing the need to advance "demand-side policies" to address plastic pollution rather than pursuing limitations on certain plastic uses.
As reported by a 16 October Politico article, Edison Electric Institute (EEI) stated "disappointment" with the US Supreme Court's decision to decline applications for a stay of the Environmental Protection Agency (EPA)'s finalized power plant carbon standards, which effectively allows the rules to remain in place. These rules establish emissions reductions targets for existing coal and new gas power plants, with compliance pathways that include carbon capture and sequestration (CCS). The article further described that EEI would continue to question the legality of these rules, and specifically the CCS pathway, before the District of Columbia Circuit. This legal action marks the latest in EEI's strategic opposition to these power plant rules over the past two years.
In a statement released on April 25th, the American Petroleum Institute (API) did not support the US Environmental Protection Agency (EPA)'s finalized emissions standards for existing coal and new gas plants, claiming that the rules would affect grid reliability.
In an April 25th press release, Advanced Energy United President and CEO Heather O'Neill stated support for the finalized federal standards addressing GHG emissions from existing coal and new gas plants. O’Neill emphasized that utilities “need to do right by ratepayers” and transition rapidly away from fossil fuels, rather than building new gas plants or prolonging existing coal plants.
As reported by Reuters in a Feburary 29th article, Edison Electric Institute (EEI) celebrated the US Environmental Protection Agency (EPA)'s decision to remove the existing gas rule from its power plant proposal. EEI appeared to link this agency decision to the industry group’s own negative engagement on the rules, stating that “we appreciate that EPA has acknowledged our concerns with the proposed regulations for existing natural gas.” EEI did not appear to make any clear statements on the raised ambition of the EPA’s eventual re-proposal of the existing gas rule, which the agency has said will cover the entire gas-fired power plant fleet. The existing gas rule proposed to address only the largest gas plants in the country.
As reported by E&ENews in a February 21st article, Edison Electric Instiute (EEI) made unsupportive statements on the Environmental Protection Agency (EPA)’s draft power plant rules. During the industry group’s Electric Power Industry Outlook presentation in Wall Street, EEI’s executive vice president for clean energy and general counsel appeared to suggest legal action against the proposed rules unless their compliance pathways were weakened, stating that if the current ambition of the proposal is finalized then it’s “likely to be a litigation issue.” EEI also appeared to support a prolonged role for fossil fuel plants, citing reliability concerns in light of increased demand for electricity.
In an August 2023 Twitter post from National Mining Association CEO Rich Nolan, the association continued to oppose the US Environmental Protection Agency (EPA)'s new power plant emissions standards on account of coal fired power plant closures, claiming that the nation's energy future "hangs in the balance".
The following table lists companies and industry associations that have engaged on the US federal power plant carbon standards across the 2022-2025 time period. Click on an entity name to view the full profile on its climate policy engagement.
Influencemap Performance Band | Organization | Policy Position | Policy Engagement Intensity |
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