BVLOS — Beyond Visual Line of Sight
BVLOS (Beyond Visual Line of Sight) refers to drone operation where the pilot or visual observer cannot directly see the aircraft with the naked eye. It is one of the highest-value operational modes in commercial drone work — unlocking long-distance applications like pipeline patrol, transmission-line inspection and methane survey grids — but also one of the most regulated.
Definition
Under Transport Canada's Canadian Aviation Regulations Part IX (governing Remotely Piloted Aircraft Systems), BVLOS is defined as any operation where the remote pilot cannot continuously see the aircraft without aid (binoculars, spotting scope, FPV camera, etc.) and verify its position, altitude and surrounding airspace.
Visual Line of Sight (VLOS) is the baseline mode under both Basic and Advanced RPAS certificates. BVLOS requires additional authorization.
Why BVLOS matters
VLOS operations are limited to roughly the area a pilot can see — typically 500 metres to 1 km depending on aircraft size and conditions. Many high-value commercial applications need more range:
- Pipeline patrol: 50+ km gathering systems
- Transmission line inspection: tens of kilometres of corridor
- Methane survey grids: distribution networks spanning entire rural counties
- Solar farm thermal sweeps: utility-scale arrays larger than VLOS coverage
- Forestry and agriculture: large-section scouting
Under VLOS, these jobs require leapfrogging launch points every few hundred metres — turning an efficient drone job back into a labour-heavy operation. BVLOS authorization eliminates that.
2026 Canadian BVLOS regulations
The biggest change in the 2026 update to CAR Part IX is the introduction of Level 1 Complex Operations, replacing the Special Flight Operations Certificate (SFOC) process for most medium-risk BVLOS work. Operators flying typical commercial BVLOS missions can now apply under a structured framework instead of bespoke SFOC paperwork.
Practical impact:
- Faster authorization: Transport Canada targets 30-day turnaround vs. the 60-90 day SFOC norm
- Standardized SORA v2.5 risk-assessment template
- Mandatory Level 1 Complex Operations pilot certification (upgrade over Advanced RPAS)
- Operations must follow approved aircraft + procedure combinations
What BVLOS authorization typically requires
- Specific Operations Risk Assessment (SORA) documenting mitigations
- Detect-and-avoid system (radar, ADS-B in/out, ground observers, or RID-based)
- Backup command-and-control link
- Trained spotters at intervals along the route (for some operations)
- Coordination with NAV CANADA where airspace is controlled
- Insurance appropriate to the operation (UAV Imaging carries $5M)
UAV Imaging's BVLOS capability
UAV Imaging has an active Level 1 Complex Operations application for BVLOS pipeline and transmission inspections across northern Alberta. The fleet is BVLOS-capable: Matrice 300 RTK with extended-range C2 link, Remote ID compliance, and crew procedures aligned with SORA v2.5.
Related
- Drone inspection services
- 2026 Alberta drone regulation updates
- Methane detection case study
- All glossary terms