This document outlines special rules for regulating construction and maintenance near civil aerodromes in Tamil Nadu, India. It defines key terms and areas of regulation. Structures are prohibited within certain distances of aerodromes unless approved by aerodrome authorities. Applications for construction must be submitted and consider limits on heights and other factors. Tree planting and radio mast construction also require aerodrome approval within specified distances. The rules aim to ensure safety and compliance with standards for airspace near aerodromes.