Time that wait list in Paris is open?

  1. I heard that there are only certain times of year that the waiting list in Paris is open. Is this true? My brother and sister in law are going to France the first week of March, and a friend of mine is going in June. I am wondering if I should ask either of them to put my name on the list. I dont want to be a bother, but its going to be years before I take off the time from work to get to France.
    If you think this is possible, any helpful tips would be much appreciated.