The FAA is ordering airlines to cut thousands of flights nationwide, as cities deal with a severe shortage of air traffic controllers during the government shutdown.

The federal government shutdown, now in its 38th day, prompted the Federal Aviation Administration to issue a temporary emergency order Thursday prohibiting commercial rocket launches from occurring during “peak hours” of air traffic.

Beginning next week, daytime rocket launches are all officially scrubbed thanks to the government shutdown.

A document released on Nov. 6 outlines restrictions to the FAA, and this includes limiting commercial space launches to overnight hours.

As the FAA begins grounding flights due to the government shutdown, workers who maintain the nation’s critical aviation systems say if they’re not paid soon, they may be forced to leave—potentially gridlocking U.

Secretary Duffy said there will be a 10% reduction in capacity at 40 locations across the country as staffing shortages strain the FAA amid the longest government shutdown in history.