Drones are considered aircraft by Transport Canada, but Health Canada treats them differently due to their unique features like lower pesticide load and limited flight time.
For drone spraying to be legal, the pesticide label must mention "Remotely Piloted Aircraft System" or "RPAS." Without this wording, using drones for application is not allowed. Labels must also provide clear directions, including safety procedures and usage limits.
Only certain pest control products, such as some biological larvicides approved in September 2022, are currently registered for drone use. These were approved without extra drone-specific data because they posed low risk.