Court Rejects Challenge to Review of U.S. Emission Rules

U.S. states have no jurisdiction to challenge an Environmental Protection Agency review of future vehicle emission rules, according to a federal appellate court in Washington, D.C.

The court’s ruling rejects an attempt by California and 16 other states to protect Obama-era emission standards set to take effect in 2021-2026, Reuters reports.

Those regulations would sharply cut allowable carbon dioxide emissions and rapidly push corporate average fuel economy goals to 46.7 mpg by 2026.

Last year, EPA under the Trump administration reopened a midterm review of the viability of those standards. The agency is expected by year-end to either freeze the limits at 2020 levels or replace the 2021-2026 goals with milder ones that would set a CAFE target of 37 mpg by 2026.