Originally Posted by ptarmigan

The AIM has NO relevance to procedures outside the U.S. Zero, zip, nada.

As to the question, it is best to be VERY careful about descending below any altitude that is published, even in the U.S. Mistakes happen. Outside the U.S., I would not do it unless sure that's what ATC wants, AND sure that terrain is not a factor, regardless of the legality of it.