The nuclear energy policy of the United States began in 1954 and continued with the ongoing building of nuclear power plants, the enactment of multiple pieces of legislation such as the Energy Reorganization Act of 1974, and the implementation of countless policies which have guided the Nuclear Regulatory Commission and the Department of Energy in the regulation and growth of nuclear energy companies. This includes, but is not limited to, regulations of nuclear facilities, waste storage, decommissioning of weapons-grade materials, uranium mining, and funding for nuclear companies, along with an increase in power plant building. Both legislation and bureaucratic regulations of nuclear energy in the United States have been shaped by scientific research, private industries' wishes, and public opinion, which has shifted over time and as a result of different nuclear disasters.

In the United States, there have been a number of legislative actions and policies implemented on a federal and state level to both regulate atomic energy and promote its expansion. The growth of nuclear power in the US ended in the 1980s, however, the Energy Policy Act of 2005 was passed in 2005 which aimed to jump-start the nuclear industry through financial loan-guarantees for expansion and re-outfitting of nuclear plants. The success of this legislation is still undetermined since all 17 companies that applied for funding are still in the planning phases on their 26 proposed building applications. Some of the proposed sites have even scrapped their building plans, and some think the Fukushima Daiichi nuclear disaster will further dampen the success of the expansion of nuclear energy in the United States.

In 2008, the Energy Information Administration projected almost 17 gigawatts of new nuclear power reactors by 2030, but in its 2011 projections, it "scaled back the 2030 projection to just five". Following the Fukushima Daiichi nuclear disaster, public support for building nuclear power plants in the U.S. dropped to 43%, slightly lower than it was immediately after the Three Mile Island accident in 1979, according to a CBS News poll. A survey conducted in April 2011 found that 64 percent of Americans opposed the construction of new nuclear reactors. A survey sponsored by the Nuclear Energy Institute, conducted in September 2011, found that "62 percent of respondents said they favor the use of nuclear energy as one of the ways to provide electricity in the United States, with 35 percent opposed".

In 2022, nuclear energy accounted for 18% of all energy generation in the United States, this was an essential contribution to USA's surpassing a record of 40% energy generation coming from carbon-free sources. While nuclear energy remains a polarizing issue amongst Americans, two-thirds of US states and the US Department of Energy plan to incorporate nuclear energy in their green energy goals.

History of the Nuclear energy policy of the United States Almost a year after World War II ended, Congress established the United States Atomic Energy Commission (AEC) to foster and control the peacetime development of atomic science and technology. Reflecting America's postwar optimism, Congress declared that atomic energy should be employed not only in the Nation's defense, but also to promote world peace, improve the public welfare, and strengthen free competition in private enterprise. Later legislation enacted by Congress split the AEC into our current Department of Energy and Nuclear Regulatory Commission.Alice Buck (1983). "The Atomic Energy Commission", U.S. Department of Energy, p. 1.

In the United States, the Nuclear Regulatory Commission (NRC) regulates the nuclear energy industry more strictly than most other industries. The NRC and the Department of Energy (DOE), work together to ensure plant safety, building and operational permits, movement and storage of nuclear waste, management of weapons-grade byproducts of plants, radiation protection, and loan guarantees.

The United States has more active nuclear power plants than any other country in the world, with 104 plants out of the total 441 active sites and another 62 under construction worldwide. This is nearly twice as many sites as the next two countries, France (58) and Japan (55), combined. Construction of U.S. nuclear facilities peaked between the 1970s and 1980s, during which time, these facilities were granted 20–40 year operational permits.

In the early days of nuclear energy, the United States government did not allow for any private sector use of nuclear technology. In 1946, President Harry Truman signed the Atomic Energy Act of 1946 into law, which prohibited the dissemination of nuclear technology or information to other entities, both domestic and abroad. This act represented the fear that foreign nations, including allies, would gain the technology and use it against the U.S. As time went on, this fear subsided and interest from the public sector emerged, in the hope that nuclear power could provide a viable energy alternative to coal.

The Atomic Energy Act of 1954, also under the administration of Dwight D. Eisenhower, amended the earlier act and ushered in the first nuclear age in the U.S. This amendment allowed the private sector to use certain government information about nuclear technology and establish private energy facilities. However, these facilities would have to abide by government rules and regulations and work closely with the government regarding the plant safety, mining, storage, transportation, and the use of weapons-grade byproducts.

First nuclear age There were two phases in U.S. nuclear policy. The first phase lasted from approximately 1954 to 1992. By the end of the 1980s, new plants were being built, and after 1992, there was a period of 13 years without any substantial nuclear legislation. The United States was not the first nation to create a nuclear power plant. Both Russia and England managed to establish small, limited power plants before the U.S. Although developments were taking place in the U.S. private sector before the 1954 act, it was not until mid-1956 that the Shippingport Atomic Power Station in Pennsylvania came online. This facility, which generated 60 MW of power, and later up to 200 MW, was the first full-scale nuclear power plant in the U.S. and the world. In the coming years, more and more plants were built by regulated utility companies, often state-based. These companies would "put the capital cost into their rate base and amortize it against power sales. Their consumers bore the risk and paid the capital cost."

Some nuclear experts began to voice dissenting views about nuclear power in 1969. These scientists included Ernest Sternglass from Pittsburgh, Henry Kendall from the Massachusetts Institute of Technology, Nobel laureate George Wald and radiation specialist Rosalie Bertell. These members of the scientific community "by expressing their concern over nuclear power, played a crucial role in demystifying the issue for other citizens", and nuclear power became an issue of major public protest in the 1970s.

Energy Reorganization Act of 1974 and NRC governing laws

The Nuclear Regulatory Commission was established under the Energy Reorganization Act of 1974. Under the Atomic Energy Act of 1954, a single agency, the Atomic Energy Commission, had responsibility for the development and production of nuclear weapons as well as the development and safety regulation of the civilian uses of nuclear materials. The Act of 1974 split these functions, assigning to one new agency, the Department of Energy, the responsibility for the development and production of nuclear weapons, promotion of nuclear power, and other energy-related work. Regulatory work, excluding regulation of defense nuclear facilities, it assigned to the NRC. The Act of 1974 gave the NRC its collegial structure and established its major offices. The later amendment to the act also provided protections for employees who raise nuclear safety concerns. Applications for new plants are filed with the NRC and usually take between three and five years to be approved. They require detailed reports on all reactor operations, transportation of fuels, enrichment, waste storage, mining of yellowcake, and more. Moreover, the government often "promises to provide incentives for building new plants through loan guarantees and tax credits," backs loans or even direct funding for building, and conducts atomic research to further the field.

Reorganization plans

Reorganization Plan No. 3 was an executive order by President Richard Nixon in 1970, which created the U.S. Environmental Protection Agency (EPA). This plan directed the EPA to establish "generally applicable environmental standards for the protection of the general environment from radioactive material." Reorganization Plan No. 1 of 1980 strengthened the executive and administrative roles of the NRC chairman, particularly in emergencies, transferring to the chairman "all the functions vested in the Commission pertaining to an emergency concerning a particular facility or materials ... regulated by the Commission." This reorganization plan also provided that all policy formulation, policy-related rulemaking, and orders and adjudications would remain vested with the full Commission.

Nuclear Non-Proliferation Act of 1978

The Nuclear Non-Proliferation Act of 1978 sought to limit the spread of nuclear weapons. Among other things, it established criteria governing U.S. nuclear exports licensed by the NRC and took steps to strengthen the international safeguards system. This helped ensure the security of the United States. Countries that signed the international Nuclear Non-Proliferation Treaty (NPT) committed to preventing the spread of nuclear weapons in return for U.S. knowledge and materials in the form of nuclear reactors and fuel.

In addition to supplying countries with nuclear technology and materials, the U.S. would aid countries in their effort to identify domestic sources of alternative energy, consistent with economic and material resources, and in compliance with environmental standards within that country. In this way, the U.S. sought to ensure control over all information, technology, and materials relevant to nuclear activities.

The Nuclear Non-proliferation Act amended the Atomic Energy Act of 1946 by establishing new criteria governing U.S. nuclear exports licensed by the NRC. Congress directed the DOE to initiate and plan the design, construction, and operation activities for expansion of uranium enrichment capacity, sufficient for domestic and foreign needs. The act specified that the nuclear non-proliferation controls would not expire annually, eliminating the need for extensions.

Uranium Mill Tailings Radiation Control Act of 1978

The Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA) was designed to establish programs for the stabilization and control of mill tailings of uranium or thorium mill sites, both active and inactive, in order to prevent or minimize, among other things, the diffusion of radon into the environment. Title II of the act gives the NRC regulatory and licensing authority over mill tailing at sites under NRC license on or after January 1, 1978.

This also gave the DOE the responsibility of stabilizing, disposing, and controlling uranium mill tailings and other contaminated material at twenty-four uranium mill processing sites located across ten states and at approximately 5,200 associated properties.

In the 1950s and 1960s, private firms processed most uranium ore mined in the United States. After uranium mining came under federal control, companies abandoned their mill operations, leaving behind materials with potential long-term health hazards. These mills contained low-level radioactive wastes and other hazardous substances that eventually migrated to the surrounding soil, groundwater, surface water, and emitted radon gas.