US Dept of Transportation
18 April 2025
U.S. Transportation Secretary Sean P. Duffy today delivered on his promise to slash an unlawful environmental rule that would raise project costs and divert critical resources away from highway construction to irrelevant emissions targets. The action, which is the Department’s first completed deregulatory move, comes less than 100 days into the Trump Administration.
The overturned greenhouse gas emission (GHG) rule would have required state transportation departments to measure and establish declining targets for carbon dioxide emissions on federally supported highways.
Today’s [18 April 2025] action builds on Secretary Duffy’s efforts to rescind woke policies, roll back burdensome and costly regulations, restore economic growth, and ensure that all USDOT policies align with the Administration’s priorities. The GHG measurement rule had been rescinded during the first Trump Administration, only to be reinstated by the Biden Administration. Two federal judges later ruled that the Department lacked authority to issue the rule.
The rescission of the GHG Measurement Rule is the latest in a series of actions designed to deliver on the President’s commitment to rescind harmful policies enacted under the Biden-Harris Administration and reaffirm USDOT’s focus on safety, efficiency, economic prosperity, and regulatory reform.
You can read the GHG rescission Final Rule here.
