Regulations on Use Procedure, Boundary Determination, Registration, Requisition, and Compensation of Air and Underground Right Of Common Duct System Article 3

While Common Duct works pass through over or under the public or private land, the competent authority shall identify by indicating air spaces and underground boundary lines and make public announcement with proper drawings and documentations and inform the land owners with written notice. The aforementioned space boundary line shall not exceed 1.5 meters outside the outer edge of the structure of Common Duct works.