Executive Order 13783, signed on March 28, 2017, directed the Environmental Protection Agency to review and ultimately rescind the Clean Power Plan, the centerpiece of Obama-era climate regulation. The Clean Power Plan had established binding carbon dioxide emissions reduction targets for existing coal and natural gas-fired power plants, with states required to meet specific benchmarks by 2030. By repealing this framework, the executive order removed federal emissions standards and eliminated the timeline that had forced incremental transitions away from coal dependence in America's electrical grid.

The practical consequences fell directly on power plant operators and the states tasked with environmental oversight. Coal-fired facilities that had begun investing in pollution control technology or fuel switching faced relaxed regulatory requirements, effectively shelving many clean energy transition projects. Environmental regulators in states lost their federal mandate to enforce reduction targets, while communities downwind from coal plants—particularly in Appalachia, the Midwest, and other coal-dependent regions—remained exposed to higher levels of particulate matter and other respiratory contaminants previously limited by the plan.

This 2017 action marked the opening salvo in a sustained campaign against environmental protections that intensified dramatically in subsequent years. The pattern is now unmistakable: the EPA leadership changes of 2026 eliminated entire regulatory departments and removed career scientists from the agency; the Defense Production Act invocation in April 2026 subordinated environmental review to fossil fuel extraction; Minnesota wilderness protection was stripped away to enable mining; and taxpayer funds were actually deployed to compensate offshore wind developers for abandoning renewable projects. Each action systematically dismantled the institutional capacity for environmental oversight that the Clean Power Plan had presupposed.

Federal courts initially blocked full implementation of the executive order, with litigation continuing through subsequent administrations. However, the Biden administration's decision to replace rather than aggressively defend the Clean Power Plan through enforcement created legal ambiguity that the Trump administration exploited upon returning to office, using the administrative state restructuring of 2026 to ensure permanent institutional capacity for enforcement was eliminated rather than simply suspended.