Public administration reform in 1998 reduced the number of voivodships from 49 to 16. As a result Ostrołęka lost its status of voivod city and was incorporated into mazowieckie voivodship. Analysis of local government legislative activity shows that 11 borough councils produced 1084 resolutions altogether. As a consequence a number of control resolutions is small too. Only in 12 cases voivod stated that the council resolution was invalid. Analysis of available data showed a certain tendency. In boroughs dominated by rightist parties (with exception of: Kadzidło, Czarnia, Łyse and Rzekuń) or by social election committees of such orientation, voivod executed his control competencies. The smallest number of control resolutions was present in boroughs dominated by representatives of Polish People’s Party and Democratic Left Alliance.