There are a couple of interesting details regarding the DOT rule change and how AA is applying them. Changes only come into effect beginning Feb 1 for all existing reservations and really only to the Emotional Support Animal/Psychiatric Service Dog category. There is no real material change to the Trained Service Dog procedures. I was on the phone with Special Services earlier and the agent didn't seem to grasp the difference. I had previously read through the entire DOT rule change and thought that the Handler Attestation form would be used for Trained Service Dog but I'm not seeing that on the AA website document. The ESA/PSD category has required documents/attestations that need to be approved and uploaded prior to flight. This will be an annual procedure based on vaccination dates and issued an ID number for future flights. Trained service dogs are not subject to this regimen but they do ask for advanced notice.