>Only one doubt: are enough two digits for the working group? This means 100 WG maximum, unless the area acts as a "namespace" for the WG (so that 112300 and 122300 are from two differents WG). Even in the latter case you would have 100 WG per area, how much time this will last. That might be true. However, if the digits only are refer to general areas, are we still in trouble? This should be a problem if the digits refer to an a specific WG.