As I said in my comments, I think the pre-2015 amendments in Ontario were really the paragon, if you will, of how it should be done on regulating government advertising. That did so because it banned partisanship, but it also mandated reasons for government advertising, and it made it fully transparent.
The U.K. also has a good model that is fully transparent. Again, Australia is useful, I think, in the state of Victoria, where they post all details related to the advertising campaigns.