The Trump administration is seeking to abandon a rule that sets tough standards for deadly soot pollution, arguing that the Biden administration did not have authority to set the tighter standard on pollution from tailpipes, smokestacks and other industrial sources.

The action follows moves by the administration last week to weaken federal rules protecting millions of acres of wetlands and streams and roll back protections for imperiled species and the places they live. In a separate action, the interior department proposed new oil drilling off the California and Florida coasts for the first time in decades, advancing a project that critics say could harm coastal communities and ecosystems.

The Environmental Protection Agency finalized a rule last year that imposed strict standar

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