Foreword

The safe and regular operation of airports requires that certain precautionary measures be adopted in order to ensure that no obstacles can hinder the takeoff, holding and approach procedures, that navigation aids and communications equipment can work without interference. In order to deal with these issues the common practice is to establish what are known as "safeguarded areas" in which special measures are adopted. Those zones called Obstacle limitation Surface was defined by The Basic Aviation Law, Oman Sultani Decree No. 93/2004, Oman Sultani Decree No. 94/2004 in the articles 6 and 7.

The documents covered are the Civil Aviation Law, Oman Ministerial Decision No. 44/T/2007 (Executive Regulations of the Civil Aviation Law) and CAR 139 “Aerodromes Certification, Design and Operation”.

This manual is effective from 12 June 2018.