The F-A-A is slated to close 173 air traffic control towers at small and medium size airports in April because of forced budget cuts.
Federal officials told tower operators Tuesday that 16 other towers will be closed on September 30-th.
The airports are still able to remain open because many planes can land without the help of air traffic controllers.
Forced spending cuts, known as the sequestration, are also expected to impact F-A-A staff.
The Grand Strand airport as well as the Florence airport both appear on the list. Not on the list, MYR in Myrtle Beach.