Fewer Advisories

Perhaps one of you lucky guys or gals gifted with a working memory can help me out. When DVSA instructed us to only use advisories which are absolutely necessary, was it in a special notice or through the matters of testing blog? One of my bosses is keen on having an advise on every tiny thing, and I of course have told him sorry boss no can do. He is such a pain however, that it would be good to just point to something in print as I am devoting far too much time to this argument.