We have very specific regulations. They adopt almost directly the ICAO standards. The requirements with respect to noise and emissions depend on the category of aircraft. All aircraft, when they're certified to operate in Canada, when they're introduced into service, need to have already shown us that they meet those levels. In fact, that is part of the certification activity. Either we do it directly or, if it's a foreign aircraft, the foreign authority does it. We make sure they meet those levels before they go into service.
On December 7th, 2010. See this statement in context.