Not getting many replies, are you Mr ILS?
This is the kind of question I usually get involved in as it deals with IF Procedures. But I don't actually understand your question, perhaps you could give more info. For example, you might quote the FAA requirement so we can compare with ICAO.
At the moment I'd be inclined just to answer "You do a PT when the procedure calls for one", but you must be looking for more than that!?