I'd like to explain a little bit the general process.
The airports have a responsibility to have a consultative approach to establishing the noise reduction procedures in an airport. They're obliged to do that. Once those procedures are established, through a consultative process, they come to Transport Canada, we review them, we approve them, and then they get published by Nav Canada. The airlines are obliged to follow those procedures.
With regard to any issues that get addressed and are raised in the community, the airports have a responsibility to hear those complaints. They do not have a responsibility, specifically, to have committee hearings in response to those comments. They have a moral obligation to listen to the comments.
Their main obligation is to consult on procedures. If they change them, they have to go through a similar process. But if there's no change, they have no specific obligation to have a consultative process. It rests with them, as a responsibility to consult.