They came with a kitty to get a certificate for flying on an airplane.
Friends told me that the procedure takes 30 minutes, But I sat for 3 hours. So put in more time. And it's better to take an animal with you - somewhere they say that an animal is not needed, but when I was there, the guys were not given a certificate without an animal. Before visiting, it is necessary to pay the state duty at the bank (at the veterinary clinic we were given such a long piece of paper for payment - so that the specialist would understand where and what to pay for). And they issued such a certificate.