In this final paper, i described and compared public transport in Varaždin county and the City of Varaždin and City of Zagreb and Zagreb county. I have explained the legislative framework in Republic of Croatia and the regulations of the European union related to public transport. The models on which public transport is based in the mentioned local and regional units are explained. In Varaždin county public transport is organized as countny passenger transport, which is organized through a transport permit model. I described the current influence of the railways on public transport in the county. Currently, the only company that has licenses for county lines is AP Varaždin. In Varaždin, as the seat of the county, public transport is organized as commulan passenger transport. From 2021., public transport is organized through utility company Čistoća d.o.o. which is owned by the city. The City of Zagreb has organized public transport trhough bus and tram transport, which is provided by the utility company ZET. Also, the suburban railway has a great influence on the daily transport of citizens. The line Savski Marof -Zagreb (Main Railway Station) - Dugo Selo is especially important. Zagreb county is the only regionalnu nit in which public transport is organized through PSO contracts. The county has PSO contracts with six bus companies that operate sixty bus lines. Also, special attention was paid to integrated passenger transport (IPP) as a model of public transport that should be strived for. Furthermore, I described the plan of Varaždin - Koprnivička - Križevačka and Međimurska counties in the area of joint public transport through IPP.