You raise a very good point and I can see your interest in that point. Please let me clarify.
He was allowed to take on his language training where he resided at the time that he started it, because there was no relocation required for him, there was no travel status required, and he is not paid meals, he is not paid an allowance, he is not paid for a hotel or his apartment, etc. Those are all his personal expenses.
So if you want to really net out his cost of language training it would be as it is for any other federal public servant. It would be the cost of their salary for the time they're taking the language training, and the incremental cost of the actual payment to the language school. I don't have those figures, but I'd be glad to make them available to committee members.