The Nuclear Regulatory Commission (NRC) is an independent agency of the United States government created by the Energy Reorganization Act of 1974. It took over the licensing and regulatory functions of the former Atomic Energy Commission on 19 January 1975, while the AEC's promotional functions passed to what is now the Department of Energy.

Mandate

The NRC's mission is to protect public health and safety and the environment from radiation hazards arising from civilian uses of nuclear materials. It does not regulate military or weapons-related nuclear activities, which fall under the National Nuclear Security Administration. The Commission is composed of five Commissioners appointed by the President and confirmed by the Senate; one is designated Chairman.

The agency's own description of its regulatory process names five components: rulemaking, licensing or certifying applicants, oversight of licensee operations, evaluation of operational experience, and research, hearings, and independent review.

Legal framework

The principal statute is the Atomic Energy Act of 1954, as amended. Implementing regulations live in Title 10 of the Code of Federal Regulations (10 CFR), with the most cited parts being:

  • 10 CFR Part 20 — Standards for Protection Against Radiation (occupational dose limits, public limits, ALARA).
  • 10 CFR Part 50 — Domestic Licensing of Production and Utilization Facilities (the foundational reactor licensing rule).
  • 10 CFR Part 52 — Licenses, Certifications, and Approvals for Nuclear Power Plants (design certification, COL, ESP).
  • 10 CFR Part 30–36 — Byproduct, source and special nuclear material licensing.
  • 10 CFR Part 71 — Packaging and Transportation of Radioactive Material.
  • 10 CFR Part 72 — Licensing Requirements for the Independent Storage of Spent Nuclear Fuel.

Supervisory structure

Operational oversight is carried out by four Regional Offices (Atlanta, King of Prussia, Lisle, Arlington), each headed by a Regional Administrator, plus Resident Inspectors stationed at every operating commercial reactor site. Headquarters offices include Nuclear Reactor Regulation (NRR), Nuclear Material Safety and Safeguards (NMSS), Nuclear Security and Incident Response (NSIR), Nuclear Regulatory Research (RES), and the Office of Enforcement.

The Reactor Oversight Process (ROP) combines baseline inspections with the Performance Indicator programme to produce a public, colour-coded Action Matrix for every reactor.

Recent priorities

Active policy areas visible on the NRC website include the licensing framework for Advanced Reactors (including 10 CFR Part 53 development), Plant Restarts at units in long-term shutdown, Subsequent License Renewal beyond 60 years, fuel cycle facility applications, and tribal liaison. Executive Order 14300 and the ADVANCE Act of 2024 set additional statutory direction.

Adjudication and openness

The NRC operates an unusual quasi-judicial Atomic Safety and Licensing Board Panel (ASLBP) that hears contested licensing proceedings, plus Commission adjudicatory review. Most licensee correspondence and inspection reports are publicly accessible through the ADAMS document system, making the NRC one of the more transparent nuclear regulators internationally.