LFCFan
*Insert nerd wings here*
I am sure there are a few others that can give a better description, but from my past briefs a SWO IP goes to a ship, qualifies SWO, then paperwork is submitted notifying of your qualification, then your designator is changed and you receive orders for your IP duty, it is not considered a lateral transfer as you have already been accepted by the IP community.
To add to this, I think that SWO-IDC folks have a different designator number from regular SWOs.
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