Nov. 14 (UPI) -- Federal authorities on Friday lowered the mandatory flight reductions at 40 of the nation's busiest airports to 3% as of Saturday morning.

The Transportation Department and Federal Aviation Administration announced the change on Friday and after lowering the mandatory flight reductions to 6% at the same airports because the federal shutdown has ended and more airports are sufficiently staffed.

"The decision reflects improvements in air traffic controller staffing levels and a continued decline in staffing-trigger events across the National Airspace System," the DOT and FAA said Friday in a news release.

The 3% staffing reduction will remain in effect while the FAA monitors the national air traffic system through the weekend and determines whether normal operations can resume as early as Monday.

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