Abstract
The landownership is one of the key issues in the “LEVEL 4” flight. The Unmanned Aircraft Policy Office at Cabinet Secretariat published a legal guideline titled “Relationship between Unmanned Aircraft Flight and Landownership” on 28th June 2021. This guideline mainly discusses the vertical extent of the landownership. This paper dilates on the understanding of the guideline on the vertical extent of the landownership and considers the claim based on the landownership not mentioned in the guideline.
