The subject of the project is partial renewal of the fleet of the company Municipal Transport Mariánské Lázně s.r.o. through the exchange of existing and unsatisfactory types of buses (EURO2 A EURO 3) for new, non-mission trolleybuses that meet the specified standards and requirements. Within the framework of the renewal of the fleet there will be a significant reduction in the amount of emissions emitted into the air and this will improve the state of the environment in the area served by the buses in question – especially in the territory of the town of Mariánské Lázně.