Question to the Department for Transport:
To ask Her Majesty's Government what is the process for downgrading airspace from controlled to uncontrolled.
The independent Civil Aviation Authority (CAA) is responsible for overseeing the design of UK airspace.
The process to request the CAA to approve a proposal for an airspace change is set out in its relevant guidance document, CAP 1616, which came into effect on 2nd January 2018.