Whilst there is an issue of rating suspension at one unit affecting (note spelling!) your usefulness to NATS at another, the whole issue has got laughably muddled.
1) SRATCOH controls your ATC hours very closely. Therefore the question of fatigue is relative. If NATS are asking you to volunteer for overtime within the SRATCOH limits now that they need you to do so, how can they object to you doing duties voluntarily under the same scheme at another (non-NATS) unit? Is one more fatiguing than the other?? (Probably the NATS unit is.)
2) The regulation of hours is far stricter in preventing fatigue than someone who is building an extension on their house (or serving on a stand at the Boat Show...). There is no suggestion that this should be stopped.
3) It now emerges that it is OK to do ATC at another unit (within SRATCOH) provided you are not paid for it!!
So: Is it fatigue?
Is it the risk of an incident?
Or is it yet another half-considered policy which NATS is following with no real idea what they are talking about whilst trying to dictate what we do with our leisure time?
I suggest it's the latter.
