The Plant Protection Products (Basic Conditions) Regulations 1997

5.  The pilot of an aircraft engaged in an aerial application shall—

(a) maintain the aircraft at a height of not less than 200 feet(1) from ground level when flying over an occupied building or its curtilage;

(b) maintain the aircraft at a horizontal distance from any occupied building and its curtilage, children’s playground, sports ground or building containing livestock of—

(i) not less than 30 metres, if the pilot has the written consent of the occupier; and

(ii) not less than 60 metres, in any other case;

(c) maintain the aircraft at a height of not less than 250 feet from ground level over any motorway, or of not less than 100 feet from ground level over any other public highway, unless the motorway or public highway has been closed to traffic during the course of the application.

(1)

The metric equivalent of one foot is 0.3048 metres (Council Directive 89/617/EEC, OJ No. L357, 7.12.89, p. 29).