Visually-impaired persons are allowed to board the vehicle with guide dogs, as are persons in wheelchairs with their service dogs, children with disabilities with therapy dogs (supervised by parents) and dog trainers with dogs going through an educational program. Puppies under socialization process in a foster family are also allowed to enter public transport vehicles. Such dogs must wear an official harness.
Transportation of pets is allowed under special conditions.

Dogs no more than 30 centimetres tall, cats and other small domesticated animals are allowed on board the vehicle, but only confined in appropriate transportation containers. Transportation of pets does not require an extra ticket.
Dogs taller than 30 centimetres at the withers are allowed on board the vehicle only if they wear a muzzle and are kept on a short lead, with the owner being required to possess the prescribed documentation, i.e. official document confirming registration and anti-rabies vaccination.

A passenger who has brought a pet on board the vehicle is responsible for its behaviour and shall be liable for compensation of any damage that the pet may cause to other passengers on board or for any soiling of the vehicle that would require the vehicle to be removed from operation in order to have it washed at the depot.

Transportation of dogs declared dangerous pursuant to special regulations is prohibited.

Passengers who bring pets on board the vehicles have to board at the front door, near the driver, and they are to remain in the front part of the vehicle. They have to be equipped with a poop-scoop device and clean up any dog fouling produced by their pet on any surface inside the vehicle. Only one pet per passenger is allowed.