I would hazard a guess that it was the industry committee at the time. Because it was the former ethics counsellor who developed the code, and he operated within the Department of Industry at the time, I'm quite certain that's what it was.
Evidence of meeting #8 for Access to Information, Privacy and Ethics in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was lobbyists.
A recording is available from Parliament.