Due to the emission of pollutants in the exhaust gas and the high noise emissions of diesel-powered buses, it is reasonable to introduce a hybrid traction in Leszno, which meets the emission standard EURO 6. Currently, 50 % of the MZK bus fleet meets the emission standard EURO 3 at most. Despite technological progress, the increase in traffic and driving technology in the city is the largest source of CO2 emissions and nitrogen oxides. Therefore, it is reasonable to purchase hybrid buses, which, in addition to the ekol dimension, will also have a significant amount of economism., will result in a reduction in operating costs, estimated according to current energy and diesel prices at around PLN 0.5 million per year. The task is planned to: 1. purchase of a single passenger rolling stock in the public transport publ. of the municipal commune – 8 units of hybrid buses. 82 persons, meeting at least Euro 6 exhaust gas standard. 2. construction, reconstruction, expansion and modernisation of the publ transport infr. — construction of bus stops together with loops and infrastructure accompanying: bus loop on the street. Rejtana and bus loop on ul. Oh, my God. Jagiełły 3. construction of management and traffic systems – installation in buses of telematics devices – mobile ticket machines 4. information and promotion activities concerning modern, ecological and socially friendly city of Leszno collective public transport – in the years 2018-2019 carried out 1 comprehensive promotional campaign of the project (leaflets, articles in the local press, bookmark on the city’s website). Planned material effects in 2019: —l. purchased passenger rolling stock units in publ. zb.kom. – 8 pcs. —capacity of purchased passenger rolling stock in publ. transp. zb.kom – 656 people. —l. actions and campaigns inf.-prom. — 1 pcs. —l. new/modernised light points – 4 pcs