Paragraph 5. Hand luggage and luggage transportation*
33. One piece of hand luggage with size 60х40х20 cm and weight no more than 20 kg is allowed to be taken in the bus or minibus without additional payment, and also one pair of skis in a cover, a baby carriage or a sledge (only in buses) on routes of regular city (rural) and suburban automobile transportations of passengers and luggage.
34. Transportation of the hand luggage exceeding weight and size dimensions specified in article 33 hereof is allowed only on the bus platforms and for an additional payment, according to the established tariff.
* Excerpts from "Rules of transportation of passengers and luggage by automobile transport".
The full text is accessible in the link below:
Rules of transportation of passengers and luggage by automobile transport
Registered in the Republic of Kazakhstan by Ministry of Justice on 3 July 2015 № 11550