R.S., c. A-2 Aeronautics Act 1 Section 4.71 of the  Aeronautics Act  is amended by adding the following after subsection (2): Collision avoidance system (3) In addition to any security requirements for equipment, systems and processes prescribed under paragraph (2)(l), gliders that have an enclosed cockpit and that weigh more than 200 kg, and any aircraft used for the towing of those gliders, must be equipped with a GPS-based collision avoidance system.