The Clean Air Act passed in 1970 is one of the most important environmental laws in American history regulating air emissions from stationary and mobile sources. This landmark legislation has prevented hundreds of thousands of premature deaths and saved trillions of dollars in healthcare costs since its implementation nationwide. The Clean Water Act of 1972 established the basic structure for regulating pollutant discharges into US waters and maintaining water quality standards across the country. The Endangered Species Act of 1973 provides protection for threatened and endangered species and their habitats and has successfully prevented 99 percent of listed species from going extinct. The National Environmental Policy Act NEPA requires federal agencies to assess environmental impacts of proposed actions before making decisions about major projects or policies. The Superfund Act of 1980 created a program to clean up the nation’s most contaminated hazardous waste sites funded by taxes on chemical and petroleum industries. The Resource Conservation and Recovery Act regulates the disposal of solid and hazardous waste and promotes waste reduction recycling and proper waste management practices. The Toxic Substances Control Act gives EPA authority to regulate the manufacture processing distribution and use of chemicals that may pose environmental or health risks. The Safe Drinking Water Act sets standards for drinking water quality and regulates water treatment systems to protect public health across all American communities. The Inflation Reduction Act of 2022 represents the largest climate investment in US history with 369 billion dollars dedicated to clean energy and emissions reduction programs.