Simplify the following text for a Grade 10 native English-speaking person.
Original: The organization became National Air Traffic Services when responsibility for sponsoring the civil air traffic service component was transferred to the newly formed UK Civil Aviation Authority ( CAA ) in 1972 . At this stage it had no legal existence - all contracts were with the CAA or MoD .
Simplified: Before 2001 the Civil Aviation Authority ( CAA ) handled air traffic control .