24 Va. Admin. Code § 5-20-190
The airport sponsor shall be responsible for insuring that an aeronautical study is conducted when needed to satisfy the requirements of this regulation to determine the effect of a structure, either man-made or natural, that penetrates the approach surfaces or runway object free area upon the safe and efficient operation of a licensed, military, or government air navigation facility or airport. This determination shall be made based on criteria as defined by 24VAC5-20-200. If a structure constitutes an obstruction in accordance with these criteria, it shall be presumed to be a hazard until determined otherwise by the board.
§§ 5.1-2.2, 5.1-2.15, and 5.1-7 of the Code of Virginia.
Derived from VR165-01-02:1 § 4.1, eff. September 9, 1992; amended, Virginia Register Volume 12, Issue 17, eff. June 12, 1996; Volume 30, Issue 4, eff. November 20, 2013.