Corvera airport in Murcia has had its airspace approved, by whichever government department permits such things.
According to El Razón, this means that the airport has a circle of airspace dedicated to take off and landings, and this is the final step before something called calibration flights can begin. The first of these is expected to take off in the next few weeks.
The calibration flights, it seems, are designed to test the airspace limitations, make sure the airport is working, and that nobody interferes with the other airports in the region. Once passed, the paperwork is sent off to the EU and the airport is recognised at an international level as being “open”.
It’s the final safety step before a license to operate commercial flights is finally granted.