Land and hold-short operations (LAHSO) will be limited to dry runways by Nav Canada, the country’s private ATC operating firm.
LAHSO is an ATC procedure that enables operations on adjacent runways at the same time. The goal is to enhance airport capacity by concurrently using two runways and instructing one aircraft to land and hold short of a runway where a departure or arrival is taking place.
In the past, this method has been performed on both wet and dry runways in Canada. Nav Canada was asked by Transport Canada to harmonize its LAHSO protocols with those of the United States. The procedure can only be performed on dry runways, according to FAA regulations. The new regulation will go into effect later this month.
The use of LAHSO procedures when moisture or contaminants are present is not authorized; a weather minimum of 1,000-foot ceiling or more and visibility of at least three statute miles is still required; crosswind component cannot exceed 25 knots, including gusts; and the PAPI serving the runway used for LAHSO must be operational.