Paragraph 37 General

Whenever any signal specified in this Section of these Rules is given or displayed, or whenever any marking so specified is displayed, by any person in an aircraft, or at an aerodrome, or any other place which is being used by aircraft for landing or take-off, it shall, when given or displayed in Hong Kong, have the meaning assigned to it in this Section.

All dimensions specified in this Section of these Rules shall be subject to a tolerance of 10 per cent, plus or minus.