Final answer:
Passengers traveling with a service animal are generally not allowed to sit in an exit seat, according to the U.S. Department of Transportation regulations. However, airlines may make reasonable accommodations for passengers with disabilities.
Step-by-step explanation:
According to the U.S. Department of Transportation (DOT), passengers traveling with a service animal are generally not allowed to sit in an exit seat. This is because service animals need to be harnessed, leashed, or tethered at all times in the airport and on the aircraft, which may restrict their movement in an emergency situation. However, it's important to note that the DOT regulations allow airlines to make reasonable accommodations for passengers with disabilities, so it's best to check with the airline before your flight to see if such accommodations can be made.