The Serb List entered Kosovo's coalition government following the 2013 Brussels Agreement, which normalized some relations between the governments of Serbia and Kosovo without resolving the status of the territory. Marić was appointed as one of two Serb List representatives in government in 2014, serving as minister of administration and local self-government. He took part in the continuing negotiations in Brussels, which focused on the planned establishment of the Community of Serb Municipalities ("Zajednica srpskih opština", ZSO) among other matters. In a May 2015 interview, he said that the ZSO was necessary for the survival of Serbs in Kosovo and Metohija. He added that there had been no will to create the ZSO prior to the formation of Isa Mustafa's administration and that the involvement of the Serb List in government had precipitated the change. (The establishment of the ZSO was subsequently postponed, and as of 2020 it has still not occurred.)