Canadian Aviation Regulations

705.69 (1) No person shall conduct a take-off or continue a flight in an aircraft when icing conditions are reported to exist or are forecast to be encountered along the route to be flown unless the aircraft is equipped to be operated in those conditions and the aircraft type certificate authorizes flight in those conditions.

(2) No person shall operate an aeroplane in icing conditions at night unless the aeroplane is equipped with a means to illuminate or otherwise detect the formation of ice.