For the first time in a long time, I traveled on a ticket that was purchased (in the US) at a travel agent. Our travel party got itinerary receipts, not e-tickets. At the end of the itinerary receipt, there was a brief description of fare restrictions; but there was no notice of terms incorporated by reference, as I'd always seen with my past e-tickets.
My understanding of Federal regulations is that whatever document you get that embodies the contract of carriage is supposed to have this notice of terms being incorporated by reference. I'm in a dispute now with the airline about fees, so this technicality is relevant.
Do itinerary receipts typically not have this notice? If so, what's the argument that airlines make to say that they are still complying with Federal regulations?