Two chemical industry groups are asking President Trump for a complete exemption to free their factories from new limits on hazardous air pollution.
Under a new rule finalized by the Biden administration last year, chemical plants would soon be required to monitor and reduce emissions of toxic pollutants, like ethylene oxide, a cancer-causing ingredient used in antifreeze and plastics.
Now the two groups, the American Chemistry Council and the American Fuel & Petrochemical Manufacturers, which represent the nation’s major chemical companies, are seeking a temporary presidential waiver for all polluters to the rule.
The new requirements burden their member corporations with “significantly costly requirements on an unworkable timeline,” the groups wrote in a letter dated March 31 that was obtained by the Environmental Defense Fund, an environmental advocacy group.
In the letter addressed to Lee Zeldin, the administrator of the Environmental Protection Agency, the groups said that the cost to companies of meeting even parts of the new rule would exceed $50 billion, significantly more than the agency’s estimate of $1.8 billion.
The request came after the E.P.A. told companies last month that they could apply for waivers to major clean-air rules by emailing the agency. The E.P.A. pointed to a section of the Clean Air Act that enables the president to temporarily exempt industrial facilities from new rules if the technology required to meet those rules isn’t available, and if it’s in the interest of national security.
Under Mr. Trump, the E.P.A. has moved to roll back many of the same rules. That could mean that companies granted a temporary exemption now would ultimately never have to comply with the new rules.
Taylor Rogers, a White House spokeswoman, said in a statement that she would “not get ahead of the president, but we can confirm President Trump’s commitment to unleashing American energy, protecting our national security interests and ensuring environmental stewardship.”
The Biden-era rule had been part of that administration’s effort to address the disproportionate effect of environmental hazards facing communities near chemical plants. These are often low-income, predominantly Black or Latino neighborhoods with elevated rates of asthma, cancer and other health problems.
It updates several regulations governing emissions from chemical plants, some of which have not been tightened in nearly 20 years, and applies to more than 200 chemical facilities across Texas and Louisiana, as well as the Ohio River Valley and West Virginia — all home to major chemical hubs.
The rule had for the first time considered the cumulative effects of multiple chemical plants on communities in such hubs, rather than simply the effect of a single source of pollution.
Companies would be required to rigorously tighten controls and processes to limit chemical emissions. They would also be required to monitor smokestacks and vents at the manufacturing facilities, while also checking whether chemicals are present at the property line of a plant. That kind of fence-line monitoring is similar to those required of petroleum refineries.
But the chemical industry had raised various concerns about the new restrictions, particularly on ethylene oxide, saying it was used in a variety of products like batteries for electric vehicles. It also is essential to sterilizing medical equipment, according to the Food and Drug Administration.
In a statement on Saturday, Chet Thompson, chief executive of American Fuel & Petrochemical Manufacturers, called the Biden-era rule “unlawful, unreasonable and technologically unachievable,” adding that it put “critical U.S. manufacturing operations at risk.”
Vickie Patton, general counsel of Environmental Defense Fund, said the Trump administration had “opened a back door for companies to avoid complying with reasonable limits on the most toxic forms of air pollution.”
American families, she said, “must worry about their loved ones breathing dirtier air, their kids missing school days and suffering a lifetime of illness due to toxic pollution, and more cancer in their families.”
The latest move is part of an effort by the Trump administration to steer the E.P.A. away from its original role of environmental protection and regulation. Mr. Zeldin has described the agency’s new mission as lowering the cost of purchasing cars, heating homes and running businesses, as well as encouraging American energy dominance.
Last month, the administration dropped a federal lawsuit against a chemical manufacturer accused of releasing high levels of chloroprene, a likely carcinogen, from a plant in Louisiana.
