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JetBlue will soon ask for proof that animals really are emotional support animals for passengers.
Starting July 1, 2018, the airline will require passengers with ESAs to complete three documents at least 48 hours in advance of their trip.
The airline says the rule changes are in response to recent industry incidents involving ESAs, which created health and safety risks for other passengers and airline workers.
ESAs are different from service animals.
JetBlue hasn't changed its policy on service animals.
The airline is the latest carrier to tighten its policy on ESAs.
American Airlines updated its policy last month.
