But not all service animals are protected under the same guidelines.
Airline officials can make a case-by-case determination when it comes to snakes, reptiles, ferrets, rodents and spiders, according to WJZ.
The Department of Transportation will also look at enforcement about other species that are emotional support animals on a case-by-case basis.
The guidelines released last week said airlines have asked the department to "categorically ban" some species like "birds, hedgehogs, insects and animals with hooves or horns." But the DOT said that the determination will be made through the rulemaking process that is revising the Department of Transpiration's Air Carrier Access Act.
Airlines now have about 30 days to revise policies that govern service animals, WJZ reported.