Background , official photographer of recently founded EPA Beginning in the late 1950s and through the 1960s, the US
Congress reacted to increasing public concern about the impact that human activity could have on the environment. Senator
James E. Murray introduced a bill, the Resources and Conservation Act (RCA) of 1959, in the
86th Congress. The bill would have established a Council on Environmental Quality in the
Executive Office of the President, declared a national environmental policy, and required the preparation of an annual environmental report. The conservation movement was weak at the time and the bill did not pass Congress. The 1962 publication of
Silent Spring, a best-selling book by
Rachel Carson, alerted the public about the detrimental effects on animals and humans of the indiscriminate use of
pesticide chemicals. In the years following, Congress discussed possible solutions. In 1968, a joint House–Senate colloquium was convened by the chairmen of the Senate Committee on Interior and Insular Affairs, Senator
Henry M. Jackson, and the House Committee on Science and Astronautics, Representative
George P. Miller, to discuss the need for and means of implementing a national environmental policy. Congress enacted the
National Environmental Policy Act of 1969 (NEPA) and the law was based on ideas that had been discussed in the 1959 and subsequent hearings. Nixon signed NEPA into law on January 1, 1970. The law established the CEQ in the Executive Office of the President. NEPA required that a detailed statement of environmental impacts be prepared for all major federal actions significantly affecting the environment. The "detailed statement" would ultimately be referred to as an
environmental impact statement (EIS). This proposal included merging
pollution control programs from a number of departments, such as the combination of pesticide programs from the
United States Department of Agriculture and the
United States Department of the Interior. After conducting hearings during that summer, the House and Senate approved the proposal. The EPA was created 90 days before it had to operate,
1970s In its first year, the EPA had a budget of $1.4 billion and 5,800 employees. EPA staff recall that in the early days there was "an enormous sense of purpose and excitement" and the expectation that "there was this agency which was going to do something about a problem that clearly was on the minds of a lot of people in this country," leading to tens of thousands of resumes from those eager to participate in the mighty effort to clean up America's environment. When EPA first began operation, members of the private sector felt strongly that the environmental protection movement was a passing fad. Ruckelshaus stated that he felt pressure to show a public which was deeply skeptical about government's effectiveness, that EPA could respond effectively to widespread concerns about pollution. The CWA established a national framework for addressing water quality, including mandatory pollution control standards, to be implemented by the agency in partnership with the states. Congress amended the
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) in 1972, requiring EPA to measure every pesticide's risks against its potential benefits. In 1973 President Nixon appointed
Russell E. Train to be the next EPA administrator. In 1974 Congress passed the
Safe Drinking Water Act, requiring EPA to develop mandatory federal standards for all
public water systems, which serve 90% of the US population. The law required EPA to enforce the standards with the cooperation of state agencies. In October 1976, Congress passed the
Toxic Substances Control Act (TSCA) which, like FIFRA, related to the manufacture, labeling and usage of commercial products rather than pollution. This act gave the EPA the authority to gather information on chemicals and require producers to test them, gave it the ability to regulate chemical production and use (with specific mention of
PCBs), and required the agency to create the National Inventory listing of chemicals. It tasked the EPA with setting national goals for waste disposal, conserving energy and natural resources, reducing waste, and ensuring environmentally sound management of waste. Accordingly, the agency developed
regulations for
solid and
hazardous waste that were to be implemented in collaboration with states. President
Jimmy Carter appointed
Douglas M. Costle as EPA administrator in 1977. To manage the agency's expanding legal mandates and workload, by the end of 1979 the budget grew to $5.4 billion and the workforce size increased to 13,000.
1980s In 1980, following the discovery of many abandoned or mismanaged hazardous waste sites such as
Love Canal, Congress passed the
Comprehensive Environmental Response, Compensation, and Liability Act, nicknamed "Superfund." The new law authorized EPA to cast a wider net for parties responsible for sites contaminated by previous hazardous waste disposal and established a funding mechanism for assessment and cleanup. Gorsuch based her administration of EPA on the
New Federalism approach of downsizing federal agencies by delegating their functions and services to the individual states. She believed that EPA was over-regulating business and that the agency was too large and not cost-effective. During her 22 months as agency head, she cut the budget of the EPA by 22%, reduced the number of cases filed against polluters, relaxed Clean Air Act regulations, and facilitated the spraying of restricted-use pesticides. She cut the total number of agency employees, and hired staff from the industries they were supposed to be regulating.
Environmentalists contended that her policies were designed to placate polluters, and accused her of trying to dismantle the agency. Assistant Administrator
Rita Lavelle was fired by Reagan in February 1983 because of her mismanagement of the
Superfund program. Gorsuch had increasing confrontations with Congress over Superfund and other programs, including her refusal to submit subpoenaed documents. Gorsuch was cited for
contempt of Congress and the White House directed EPA to submit the documents to Congress. Gorsuch and most of her senior staff resigned in March 1983. Reagan then appointed William Ruckelshaus as EPA administrator for a second term. As a condition for accepting his appointment, Ruckleshaus obtained autonomy from the White House in appointing his senior management team. He then appointed experienced competent professionals to the top management positions, and worked to restore public confidence in the agency.
Lee M. Thomas succeeded Ruckelshaus as administrator in 1985. In 1986 Congress passed the
Emergency Planning and Community Right-to-Know Act, which authorized the EPA to gather data on toxic chemicals and share this information with the public. In 1988, during his first presidential campaign,
George H. W. Bush was vocal about environmental issues. Following his election victory, he appointed
William K. Reilly, an environmentalist, as EPA administrator in 1989. At the time, there was increasing awareness that some environmental issues were regional or localized in nature, and were more appropriately addressed with sub-national approaches and solutions. This understanding was reflected in the 1990 amendments to the
Clean Air Act and in new approaches by the agency, such as a greater emphasis on
watershed-based approaches in Clean Water Act programs.
1990s In 1992 EPA and the Department of Energy launched the
Energy Star program, a voluntary program that fosters energy efficiency.
Carol Browner was appointed EPA administrator by President
Bill Clinton and served from 1993 to 2001. Major projects during Browner's term included: • Initiation of the
Brownfields pilot program in 1995 • Initial hazardous air pollution standards for
petroleum refineries in 1995 • Initial
lead paint abatement regulations under TSCA in 1996 • Update of the
National Ambient Air Quality Standards for
particulate matter and
ozone in 1997. Since the passage of the Superfund law in 1980, an
excise tax had been levied on the chemical and petroleum industries, to support the cleanup trust fund. Congressional authorization of the tax was due to expire in 1995. Although Browner and the
Clinton Administration supported continuation of the tax, Congress declined to reauthorize it. Subsequently, the Superfund program was supported only by annual appropriations, greatly reducing the number of waste sites that are remediated in a given year. (In 2021 Congress reauthorized an excise tax on chemical manufacturers.) Taking place In 1994, President Bill Clinton signed the Executive Order 12898, which required the federal government to address environmental justice. The order told all federal agencies to consider how their actions might affect minority and low-income communities, especially communities that face higher levels of pollution or other environmental issues. This order had vital connection to the EPA, with the creation of the Office of Environmental Justice. The purpose of this office was to help coordinate environmental justice work across different environmental agencies and support efforts to protect communities that were facing disproportionate environmental burdens. Major legislative updates during the Clinton Administration were the
Food Quality Protection Act and the 1996 amendments to the Safe Drinking Water Act.
2000s President
George W. Bush appointed
Christine Todd Whitman as EPA administrator in 2001. Whitman was succeeded by
Mike Leavitt in 2003 and
Stephen L. Johnson in 2005. The EPA had suppressed a study it commissioned by
Harvard University which contradicted its position on mercury controls. The suit alleged that the EPA's rule exempting coal-fired power plants from "maximum available control technology" was illegal, and additionally charged that the EPA's system of
cap-and-trade to lower average mercury levels would allow power plants to forego reducing mercury emissions, which they objected would lead to dangerous local hotspots of mercury contamination even if average levels declined. Several states also began to enact their own mercury emission regulations. Illinois's proposed rule would have reduced mercury emissions from power plants by an average of 90% by 2009. In 2008—by which point a total of fourteen states had joined the suit—the U.S. Court of Appeals for the District of Columbia ruled that the EPA regulations violated the Clean Air Act. In response, EPA announced plans to propose such standards to replace the vacated Clean Air Mercury Rule, and did so on March 16, 2011. In July 2005 there was a delay in the issuance of an EPA report showing that auto companies were using loopholes to produce less fuel-efficient cars. The report was supposed to be released the day before a controversial energy bill was passed and would have provided backup for those opposed to it, but the EPA delayed its release at the last minute. EPA initiated its voluntary
WaterSense program in 2006 to encourage
water efficiency through the use of a special label on consumer products. In 2007 the state of California sued the EPA for its refusal to allow California and 16 other states to raise fuel economy standards for new cars. EPA Administrator Stephen Johnson claimed that the EPA was working on its own standards, but the move has been widely considered an attempt to shield the auto industry from environmental regulation by setting lower standards at the federal level, which would then preempt state laws. California governor
Arnold Schwarzenegger, along with governors from 13 other states, stated that the EPA's actions ignored federal law, and that existing California standards (adopted by many states in addition to California) were almost twice as effective as the proposed federal standards. It was reported that Johnson ignored his own staff in making this decision. In 2007 it was reported that EPA research was suppressed by career managers. Supervisors at EPA's National Center for Environmental Assessment required several paragraphs to be deleted from a peer-reviewed journal article about EPA's
integrated risk information system, which led two co-authors to have their names removed from the publication, and the corresponding author, Ching-Hung Hsu, to leave EPA "because of the draconian restrictions placed on publishing". The 2007 report stated that EPA subjected employees who author scientific papers to
prior restraint, even if those papers are written on personal time. In December 2007 EPA administrator Johnson approved a draft of a document that declared that climate change imperiled the public welfare—a decision that would trigger the first national mandatory global-warming regulations. Associate Deputy Administrator Jason Burnett e-mailed the draft to the White House. White House aides—who had long resisted mandatory regulations as a way to address climate change—knew the gist of what Johnson's finding would be, Burnett said. They also knew that once they opened the attachment, it would become a public record, making it controversial and difficult to rescind. So they did not open it; rather, they called Johnson and asked him to take back the draft. Johnson rescinded the draft; in July 2008, he issued a new version which did not state that
global warming was danger to public welfare. Burnett resigned in protest. In April 2008, the
Union of Concerned Scientists said that more than half of the nearly 1,600 EPA staff scientists who responded online to a detailed questionnaire reported they had experienced incidents of political interference in their work. The survey included chemists, toxicologists, engineers, geologists and experts in other fields of science. About 40% of the scientists reported that the interference had been more prevalent in the last five years than in previous years. President
Barack Obama appointed
Lisa P. Jackson as EPA administrator in 2009. Between 2011 and 2012, some EPA employees reported difficulty in conducting and reporting the results of studies on
hydraulic fracturing due to industry and governmental pressure, and were concerned about the censorship of
environmental reports. President Obama appointed
Gina McCarthy as EPA administrator in 2013. In 2015, the EPA discovered
extensive violations by
Volkswagen Group in its manufacture of
Volkswagen and
Audi diesel engine cars, for the 2009 through 2016 model years. Following notice of violations and potential criminal sanctions, Volkswagen later agreed to a legal settlement and paid billions of US dollars in criminal penalties, and was required to initiate a vehicle buyback program and modify the engines of the vehicles to reduce illegal air emissions. In August 2015, the EPA finalized the
Clean Power Plan to regulate emissions from power plants, projecting a 15-year cut of 32%, or 789 million metric tons of carbon dioxide. In 2019 it was voided and replaced by the Affordable Clean Energy rule under the Trump administration, and in 2022 its constitutionality was ruled out by the Supreme Court. In August 2015, the
2015 Gold King Mine waste water spill occurred when EPA contractors examined the level of pollutants such as
lead and
arsenic in a
Colorado mine, and accidentally released over three million gallons of waste water into Cement Creek and the
Animas River. In 2015, the
International Agency for Research on Cancer (IARC), a branch of the
World Health Organization, cited research linking
glyphosate, an ingredient of the weed killer Roundup manufactured by the chemical company
Monsanto, to
non-Hodgkin's lymphoma. In March 2017, the presiding judge in a litigation brought about by people who claim to have developed glyphosate-related non-Hodgkin's lymphoma opened Monsanto emails and other documents related to the case, including email exchanges between the company and federal regulators. According to
The New York Times, the "records suggested that Monsanto had ghostwritten research that was later attributed to academics and indicated that a senior official at the Environmental Protection Agency had worked to quash a review of Roundup's main ingredient, glyphosate, that was to have been conducted by the
United States Department of Health and Human Services." The records show that Monsanto was able to prepare "a public relations assault" on the finding after they were alerted to the determination by
Jess Rowland, the head of the EPA's cancer assessment review committee at that time, months in advance. Emails also showed that Rowland "had promised to beat back an effort by the Department of Health and Human Services to conduct its own review." On February 17, 2017, President
Donald Trump appointed
Scott Pruitt as EPA administrator. In 2017, the
Presidency of Donald Trump proposed a 31% cut to the EPA's budget to $5.7 billion from $8.1 billion and to eliminate a quarter of the agency jobs. However, this cut was not approved by Congress. Pruitt resigned from the position on July 5, 2018, citing "unrelenting attacks" due to ongoing ethics controversies. President Trump appointed
Andrew R. Wheeler as EPA administrator in 2019. On July 17, 2019, EPA management prohibited the agency's Scientific Integrity Official,
Francesca Grifo, from testifying at a House committee hearing. EPA offered to send a different representative in place of Grifo and accused the committee of "dictating to the agency who they believe was qualified to speak." The hearing was to discuss the importance of allowing federal scientists and other employees to speak freely when and to whom they want to about their research without having to worry about any political consequences. In September 2019 air pollution standards in California were once again under attack, as the Trump administration attempted to revoke a waiver issued to the state which allowed more stringent standards for auto and truck emissions than the federal standards.
2020s Biden Presidency (2021–2025) President
Joe Biden appointed
Michael S. Regan to be administrator in 2021. Regan began serving on March 11, 2021. In October 2021 EPA announced its "PFAS Strategic Roadmap."
PFASs are
organofluorine chemical compounds referred to as "
forever chemicals". The roadmap is a "whole-of-EPA" strategy and the agency will consider the full
life cycle of PFAS, including preventing PFAS from entering the environment, holding polluters accountable, and remediation of contaminated sites. It also will include drinking water monitoring and risk assessment for
PFOA and
PFOS in
biosolids (processed
sewage sludge used as fertilizer). In December 2021 EPA issued new
greenhouse gas standards for passenger cars and light trucks. The standards, which will reduce climate pollution and improve public health, became effective for the 2023 vehicle model year. In March 2022 the
Biden administration allowed California to again set stricter auto emissions standards. In August 2022 the EPA was allotted a listed ~$53.216 billion in funding pursuant to the
Inflation Reduction Act (IRA). The EPA listed 24 total initiatives, the most notable among them being
greenhouse gas reduction and monitoring, a superfund petroleum tax, replacing current heavy-duty vehicles with
zero-emission vehicles, and a methane incentive program. On February 3, 2023, more than 100 train cars were derailed in
East Palestine, and around half of those cars containing chemicals like
butyl acrylate,
vinyl chloride, and
ethylhexyl acrylate. Subsequently, the chemicals combusted into a flame being seen from miles around and the fumes filled the air with residents reporting animals falling ill and a burning sensation in their eyes and nose. The EPA monitered the situation and experts recommended that local residents take part in the EPA's at-home air screening. On April 21, 2023, the White House implemented the Justice40 Initiative as part of its broader effort to improve equality in minority communities. The goal of Justice40 is to make sure that 40 percent of the benefits from major federal investments go to communities that have been ignored. These investments include climate programs, clean energy projects, and efforts to reduce pollution. Justice40 changed the way federal agencies planned their programs and worked with each other. It guided how they identified disadvantaged communities and how they decided where money and support should go. For the EPA, this meant adjusting some of its grant programs and technical assistance, so they clearly supported Justice40’s goals and showed that the benefits were reaching the communities that needed them most. In March 2024, EPA published regulations for
tailpipe emissions standards that accelerate the transition to
electric vehicles (EVs). The standards require at least two-thirds of all new cars sold in the United States to be zero-emissions vehicles by 2032, in order to reduce air pollution and climate change. The agency projected that the regulations would cut emissions by 7 billion metric tons, or 56% of 2026 levels, by 2032. In April 2024, EPA finalized new standards for power plant carbon emissions, projecting cuts of 65,000 tons by 2028 and 1.38 billion tons by 2047. The agency also issued final drinking water standards for six PFAS compounds. In December, 2024 the EPA announced it approved California's plan to end the sale of gasoline-only vehicles by 2035. EPA Administrator Michael Regan granted a waiver under the Clean Air Act to California to implement the plan which was first announced in 2020. It required that by 2035 at least 80% of new cars sold be electric and up to 20% plug-in hybrid models. California's rules were adopted by 11 other states including New York, Massachusetts and Oregon.
Second Trump Presidency (2025–) With the
second presidential term of Donald Trump,
Lee Zeldin began serving as administrator on January 29, 2025. On February 27, 2025, EPA received a White House memo issued by
Russell Vought to prepare for mass layoffs. Hours earlier, Trump had said that there would be a 65 percent reduction in its roughly 17,000 personnel, which was later corrected to 65 percent overall agency budget cuts. After these changes, many towns and cities struggled to continue projects related to pollution cleanup, public health, and environmental monitoring because the funding was no longer available. In March 2025 the EPA dropped a lawsuit against
Denka, a chemical company, which was intended to reduce emissions of
chloroprene at its plant in
LaPlace, Louisiana. After the
Supreme Court of the United States overturned an injunction against termination of government employees in
AFGE v. Trump, the EPA announced in July 2025 that it would be eliminating its Office of Research and Development. The agency had previously denied plans to do so after a leaked memo indicating plans to do so was reported on in March. The EPA released a new proposed rule in July 2025 to repeal the previous endangerment finding that had been established in 2009 that greenhouse gases posed a risk to human health, a basis used in many of the EPA's regulations supporting the Clean Air Act. Zeldin asserted that the impact of these existing regulations was harming American citizens through increased costs, this being his rationale for eliminating the endangerment finding. By late 2025, the EPA had greatly reduced its environmental justice work. As part of the administration’s changes, the Office of Environmental Justice and External Civil Rights was shut down, and a large portion of the EJ staff were either reassigned or put on leave. Most EJ grants were also ended, which left many local projects without the funding they depended on. During this time, the EPA also removed EJScreen from its website. This made it harder for communities to access pollution and health data they had previously relied on. Without federal support, many state and local EJ programs began struggling to continue their work. While It was possible to use data from third party EJScreen websites, this information was commonly outdated or inaccurate as data is no longer being collected. Overall, these changes showed a major shift in federal policy away from community environmental protection and equity-based enforcement. ==Organization==