In Canada, there can be no obstructions within how many meters outside the fence?

• A. 3 meters
• B. 1 meter
• C. 5 meters
• D. 2 meters

Answer: (A)

The main idea here is the safety buffer around the airport perimeter. Canada requires keeping a clear area outside the fence to maintain visibility, security access, and a guard against objects or activities that could threaten the airside. The standard distance is three meters. This creates enough space for security patrols to monitor the boundary, for maintenance work without clutter near the fence, and to reduce the chance of debris or wildlife encroachment entering restricted areas. A buffer of one or two meters would be too tight for reliable visibility and safe operations, while five meters would unnecessarily constrain ground access and is not the mandated standard.