Yes, but that's not what the French says. I understand that the Liaison Committee will handle it and that there is a 60-day deadline. But, in my view, it would have been easier to say: “Que les témoins soient remboursés de leurs frais de déplacement dans un délai de 60 jours”; it is clearer. Saying “qui en font la demande” means that those who don't know that information will not send a request and will not be reimbursed.
On June 15th, 2011. See this statement in context.