Because of the publicity about the dangers of animals flying as cargo on commercial airlines, the United States congress has passed laws that require airlines to report any and all injuries, deaths, or incidents that happen with the animals while they are flying on a passenger airline.
There are many different laws when it comes to companion animals, and they change often. These laws range widely depending on where you live—north or south, east or west, or city or country. You may contact your local animal control facility if you would like to learn what your specific right and responsibilities are as an animal caretaker.