Video by Wochit

When United Airlines accepted full responsibility for the death of a dog on one of its flights earlier this year, it prompted a major review of the US carrier’s policies for transporting animals. The carrier said this week it is working with the country’s oldest national humane animal organization, American Humane, to improve the well-being of pets that fly with the airline, and will resume transporting them as cargo from July 9—but it has also decided to ban 25 pet breeds from its aircraft.

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Some of the most popular dog breeds in the US are now banned from flying with United Best and Worst Airlines for Domestic Flights

The Chicago-based airline said the 21 dog and four cat breeds are being banned because of being prone to physical problems from heat or other travel stress. The four cat breeds prevented from flying with the airline are Burmese, exotic shorthair, Himalayan, and Persian.

But the dog breeds include some of the most popular ones in the US, including Boston terriers, bulldogs, boxers, and mastiffs. Short-nosed dogs from the brachycephalic breeds, such as small Pekingese and pug dogs, are also banned.

Some of the most popular dog breeds in the US are now banned from flying with United © Provided by Quartz While the complete list is available on United’s website, including the dogs that fall under each breed category, here is how the 21 breeds banned by United rank in popularity in the US, according to American Kennel Club (AKC) data.A total of 190 breeds were ranked in 2017.

Dog breeds banned from UnitedPopularity ranking by AKC
Affenpinscher147
American Bullyn/a
American Pit Bull Terrier/Pit Bulln/a
American Staffordshire Terrier/”Amstaff”83
Belgian Malinois44
Boston Terrier21
Boxer11
Brussels Griffon94
Bulldog5
Cavalier King Charles Spaniel19
Chow Chow76
English Toy Spaniel/Prince Charles Spaniel134
Japanese Chin/Japanese Spaniel108
Lhasa Apso77
Mastiff28
Pekingese88
Pug31
Shar-Pei/Chinese Shar-Pei64
Shih-Tzu20
Staffordshire Bull Terrier/”Staffys”82
Tibetan Spaniel121

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