14 CFR Part 382 Nondiscrimination on the Basis of Disability in Air Travel (Air Carrier Access Act): Preamble and Section-by-Section Analysis (with amendments issued through July 2010)
A single passenger legitimately may have two or more service animals. In these circumstances, you should make every reasonable effort to accommodate them in the cabin in accordance with Part 382 and company policies on seating. This might include permitting the passenger to purchase a second seat so that the animals can be accommodated in accordance with FAA safety regulations. You may offer the passenger a seat on a later flight if the passenger and animals cannot be accommodated together at a single passenger seat. Airlines may not charge passengers for accommodations that are required by Part 382, including transporting service animals in the cargo compartment. If carriage in the cargo compartment is unavoidable, notify the destination station to return the service animal(s) to the passenger at the gate as soon as possible, or to assist the passenger as necessary to retrieve them in the appropriate location.
Are there any situations in which an animal would not be permitted to accompany its user on the flight?
The only situation in which the rule contemplates that a service animal would not be permitted to accompany its user at his or her seat is where the animal blocks a space that, per FAA or applicable foreign government safety regulations, must remain unobstructed (e.g., an aisle, access to an emergency exit) AND the passenger and animal cannot be moved to another location where such a blockage does not occur. In such a situation, the carrier should first talk with other passengers to find a seat location in the cabin where the service animal and its user can be agreeably accommodated (e.g., by finding a passenger who is willing to share foot space with the animal). The fact that a service animal may need to use a reasonable portion of an adjacent seat’s foot space that does not deny another passenger effective use of the space for his or her feet by taking all or most of the passenger’s foot space is not, however, an adequate reason for the carrier to refuse to permit the animal to accompany its user at his or her seat. Only if no other alternative is available should the carrier discuss less desirable options concerning the transportation of the service animal with the passenger traveling with the animal, such as traveling on a later flight with more room or carrying the animal in cargo. As indicated above, airlines may not charge passengers with disabilities for services required by Part 382, including transporting their oversized service animals in the cargo compartment.
Should passengers provide advance notice to the airline concerning multiple or large service animals?
In most cases, airlines may not insist on advance notice or health certificates for service animals under the ACAA regulations. However, it is very useful for passengers to contact the airline well in advance if one or more of their service animals may need to be transported in the cargo compartment. The passenger will need to understand airline policies and should find out what type of documents the carrier would need to ensure the safe passage of the service animal in the cargo compartment and any restrictions for cargo travel that might apply (e.g., temperature conditions that limit live animal transport).