When flying in Canada we regulary corrected altitudes for temperature...especially NPAs! However, I did a stint in Europe for a while and also flew corrected altitudes including ATC Radar Vectored Altitudes, as we had been told that only Canada corrects RVAs for cold weather.
Obviously, we informed ATC when we corrected their altitudes.
My question is: Does anyone know if this is true? We never had any documentation to back up this claim. It just seemed prudent to apply the corrections in case it was...