72. The members of the civil service staff are appointed and promoted as follows:(a) deputy ministers, associate secretaries-general of the Conseil exécutif, assistant secretaries of the Conseil du trésor and associate or assistant deputy ministers are appointed or promoted by the Government upon the recommendation of the Prime Minister;
(b) the other civil servants of the departments or agencies are appointed or promoted by the incumbent minister or by the minister responsible for the agency, and they may, in writing, delegate their power to the deputy minister or the chief executive officer of an agency, or any civil servant designated by them.