Many of the largest airports across the country will see a noticeable reduction in flight offerings starting Friday, as the Federal Aviation Administration (FAA) implements new steps to maintain air safety amid the ongoing government shutdown.

The preliminary list of 40 airports operating at reduced capacity, obtained by The Hill’s sister network NewsNation, is subject to change. The FAA is expected to announce the full list sometime later on Thursday.

The list, also obtained by The Washington Post, CBS News and ABC News, includes virtually all the major air travel hubs — from New York, to Los Angeles, to Washington, D.C., to Miami, to Chicago, to Dallas and many airports in between.

Here’s the full preliminary list of affected airports.

1. Anchorage International (ANC)
2. Hartsfield-Jackson Atlanta International (ATL)
3. Boston Logan International (BOS)
4. Baltimore/Washington International (BWI)
5. Charlotte Douglas International (CLT)
6. Cincinnati/Northern Kentucky International (CVG)
7. Dallas Love (DAL)
8. Ronald Reagan Washington National (DCA)
9. Denver International (DEN)
10. Dallas/Fort Worth International (DFW)
11. Detroit Metropolitan Wayne County (DTW)
12. Newark Liberty International (EWR)
13. Fort Lauderdale/Hollywood International (FLL)
14. Honolulu International (HNL)
15. Houston Hobby (HOU)
16. Washington Dulles International (IAD)
17. George Bush Houston Intercontinental (IAH)
18. Indianapolis International (IND)
19. New York John F. Kennedy International (JFK)
20. Las Vegas Harry Reid International (LAS)
21. Los Angeles International (LAX)
22. New York LaGuardia (LGA)
23. Orlando International (MCO)
24. Chicago Midway (MDW)
25. Memphis International (MEM)
26. Miami International (MIA)
27. Minneapolis/St. Paul International (MSP)
28. Oakland International (OAK)
29. Ontario International (ONT)
30. Chicago O’Hare International (ORD)
31. Portland International (PDX)
32. Philadelphia International (PHL)
33. Phoenix Sky Harbor International (PHX)
34. San Diego International (SAN)
35. Louisville International (SDF)
36. Seattle/Tacoma International (SEA)
37. San Francisco International (SFO)
38. Salt Lake City International (SLC)
39. Teterboro (TEB)
40. Tampa International (TPA)

FAA Administrator Bryan Bedford announced Wednesday that the agency was taking the extraordinary step of reducing flight capacity by 10 percent across 40 “high-traffic” areas in the country.

As many as 1,800 flights and 268,000 seats could be affected, The Associated Press reported, citing an estimate from aviation analytics firm Cirium.

Air traffic controllers have been working unpaid since the start of the shutdown on Oct. 1, leaving many major air hubs short staffed and facing significant fatigue and morale issues. Most employees are working six days a week, putting in mandatory overtime, the AP noted.