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First United Airlines barred an emotional support peacock from boarding. Now American Airlines is telling passengers some of their service and emotional support animals — including goats, hedgehogs and tusked creatures — can’t fly.



The carrier is joining rival airlines in tightening rules for passengers flying with emotional support animals, expanding the list of animals that can’t fly in addition to requiring customers vouch for their animal’s ability to behave.



Federal laws require airlines to permit passengers with disabilities to travel with service and emotional support animals in the cabin, though airlines can require a statement from a licensed mental health professional documenting the passenger’s need for an emotional support animal.



American said the new rules are designed to protect passengers with legitimate needs for service and support animals while avoiding problems with untrained animals in the cabin.



Under the new rules, which go into effect July 1, American is adding amphibians, goats, hedgehogs, insects, nonhousehold birds and animals with tusks, horns or hooves to the list of those that can’t fly as service or support animals. The airline will make an exception for miniature horses that have trained as service animals.

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