Every time I meet someone who wishes to discuss an offer of employment under the act when they're still a public officeholder and they're planning their future, I invariably go through part 3 completely. I'm sure I did the same thing with Mr. MacNaughton, going through every section, including section 37, which was key in this case.
Evidence of meeting #12 for Access to Information, Privacy and Ethics in the 43rd Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was lobbying.
A video is available from Parliament.