Earlier this year, Delta Air Lines made headlines after announcing more stringent vetting of service and emotional support animals. While federal law permits service animals to travel in-cabin with their owners (provided they don’t pose a threat to others’ health and safety), a 150 percent increase in service animals on Delta flights has resulted in a spike of disruptions, including a dog attack last year. To prevent abuses of the system, Delta is imposing new rules for traveling with service and support animals effective March 1. Under the new policy, you’ll need to provide documentation outlining your child’s need for the animal and proof of its training and vaccinations at least 48 hours prior to flying. Forms must be completed by a licensed vet, and emotional support animals require an additional form filled out by a mental health professional. Recently—after a woman attempted to board with her pet peacock— United Airlines announced it’s following suit. Others are likely to follow. To ensure your family is covered, check your carrier’s website for specific documentation requirements.