Required System Risk Ratio in Class G Remote Airspace
Verified from official sourcesStandard 922Version 1Effective -Verified 23 August 2026
In plain language
When flying below 400 feet AGL in Class G airspace and more than 5 nautical miles away from any airport, heliport, or aerodrome listed in the CFS/WAS, your RPAS must meet a system risk ratio of 0.66 or less.
Requirement as structured
The RPAS must have a system risk ratio of 0.66 or less (ARC-b) when operating below 400 feet AGL within Class G airspace and greater than 5 nautical miles from any airport, heliport, or aerodrome published in the CFS/WAS.
Original regulatory text
Below 400ft AGL, within Class G Airspace and greater than 5nm from any airport, heliport or aerodrome published in the CFS/WAS. ARC-b <=0.66
Applies when
- country
- Canada
- airspace class
- Class G
- max altitude agl ft
- 400
- regulatory category
- Specific