Is "Head Office" defined anywhere in the Air Canada Public Participation Act? Does it only need to be the nominal mailing address for the corporation? Does it necessary mean that all the executive functions need to be in Montreal? I could see a scenario where there is simply a skeleton number of employees in "head office" to receive mail and all of the other functions of the company are located elsewhere. Or could the Board decide to dissolve the corporation and then start Air Canada (2021) Ltd. which would then not be subject to the Act?