New York City's $9 congestion pricing fee for people driving in certain parts of the city will remain, passing a federal deadline Sunday to end it.

The Trump administration may withhold environmental approvals for Manhattan transportation projects if New York state does not end congestion pricing, U.S. Transportation Secretary Sean Duffy said on Monday.

The U.S. Department of Transportation initially told New York to turn off its congestion pricing cameras by March 21, but then granted the state an extension, setting the new deadline for Sunday, April 20.