The FAA only requires training for "an approach to the stall". Same as AF. And AB.
What the FAA requires and what is a good idea are usually 2 different things. Last I heard they are in the process of changing that requirement to a full stall series in the wake of 'Captain stall the q400 into the ground' (Colgan crash in Buffalo) and the two equally "intelligent" beings at Pinnacle who stalled from FL410 (by flying outside of the performance limit of their airplane). Those two went even further and didn't push over far enough to attain enough airspeed to relight the engines (which had compressor stalled and flamed out). People who can do both of those things should have never been let into aircraft in the first place, though I bet they were "professional" (image wise) and said the right things to appease the HR cronies. Training to a full stall and recovery is a good idea, and as I said, if an air carrier is not doing it they should not be in the air. Knowing how to fly/recover the airplane past the limit is where the men are separated from the boys.