AERIAL PREVENTION AREA  

They identify and control the air traffic.

The vertical limit of this area is established from the mean sea level up to
15,000 feet.
If an aircraft is flying in the airspace above and required to make an
emergency descent have to enter the area of prevent air, report your emergency
frequency 122.8 Mhz. is hereby authorized to descend to minimum altitude of 
10,000 feet.

The civil airships and boats will have to count on system of automatic identification
(AIS) which it must to be in good condition. Also the personnel of pilots perform any
activities in the areas of exclusion will be properly certificate to make its activities.