The ICAAF is a specialized organization dedicated to the defense of a terrestrial planet's airspace and low-orbit defense zone. The ICAAF works in conjunction with local ICAA planetary defense forces to coordinate a planetwide defense. The ICAAF is also responsible for deploying and maintaining a planet's orbital defensive infrastructure and has authority over space elevators, mass drivers, and launch sites.
The ICAAF is further subdivided into the following jurisdictions