; (2) reasonable measures to ensure pets are not claimed as service animals, such as— (A) whether to require photo identification for a service animal identifying the type of animal, the breed of animal, and the service the animal provides to the passenger; (B) whether to require documentation indicating whether or not a service animal was trained by the owner or an approved training organization; (C) whether to require, from a licensed physician, documentation indicating the mitigating task or tasks a service animal provides to its owner; and (D) whether to allow a passenger to be accompanied by more than 1 service animal; (3) reasonable measures to ensure the safety of all passengers, such as— (A) whether to require health and vaccination records for a service animal; and (B) whether to require third-party proof of behavioral training for a service animal; (4) the impact additional requirements on service animals could have on access to air transportation for passengers with disabilities