Trump administration cancels Biden-era plan to designate National Interest Electric Transmission Corridors in multiple states

The Trump administration has decided not to move forward with a Biden-era effort aimed at speeding permitting and planning for new electric transmission lines, according to a report published Wednesday by The Hill. The Department of Energy said it would not proceed with designating three areas as National Interest Electric Transmission Corridors, a designation intended to streamline federal coordination for grid expansion projects.

The decision affects efforts that were being pursued in several states, including parts of Pennsylvania, Colorado, New Mexico, Oklahoma, Nebraska and the Dakotas, the report said. The corridors framework is used to identify regions where additional transmission capacity is considered important to reliability and to the broader national interest, with the corridor label designed to trigger additional federal attention during project development.

The Hill said the cancellation reverses a component of the Biden administration’s approach to transmission buildout. In the Biden-era effort, the corridor designations were intended to help reduce delays associated with the siting and approval process for long-distance transmission infrastructure, including projects that often span multiple jurisdictions and require coordination among federal, state, and local stakeholders.

Under the corridors program, corridor designations are generally tied to a federal role in supporting grid planning and coordination. The Energy Department’s reported move not to designate the three areas means that those specific corridor requests would not advance through the step that can make proposed transmission projects easier to navigate from a federal process standpoint, the report indicated.

The Energy Department’s action came in a wider context of ongoing debates about how to balance energy infrastructure development with environmental and land-use considerations, including questions about who has authority over permitting and how much federal coordination is appropriate for projects that may involve state-regulated utilities and local land decisions. Public discussion around transmission buildout has also focused on practical outcomes, including whether faster planning and federal coordination can reduce bottlenecks while maintaining compliance with existing requirements.

The Hill report did not describe additional administrative steps beyond the Energy Department’s decision not to move forward with the corridor designations. Projects in the affected states would therefore remain dependent on the standard permitting and planning routes that apply even when corridor designations are not granted, including the ongoing need for approvals from relevant federal agencies and state processes for siting and construction.

The corridor framework has been viewed by supporters as a tool to reduce friction for transmission expansion, particularly in regions where new lines may be needed for reliability and for integrating additional generation capacity. Opponents have argued that such designations could increase regulatory pressure and shift leverage toward federal objectives during development. Because the Energy Department’s reported action is limited to declining to designate three specific corridor areas, the practical effect is confined to those corridor requests rather than, according to the report, halting all transmission construction activity across the country.