Region Friuli Venezia Giulia wants to abolish the Province of Trieste. But can Italian authorities do it, since the Province of Trieste is not in Italy?

Region Friuli Venezia Giulia wants to abolish the Province of Trieste. But can Italian authorities do it, since the Province of Trieste is not in Italy?
[DOCUMENTS] Since 2011, Free Trieste is working to re-establish the rule of law in Trieste. This updated page collects the Movement’s main documents.
We are not separatists: the Free Territory of Trieste’s independence is recognized under international Treaties and UNSC Resolutions. We stand for legality.
25 May 2014: Free Trieste opposes municipal elections summoned in the name of the Republic of Italy and European elections. #NoElectionDay
8 December 2013: thousand of people of Trieste present the manifesto for the re-activation of the international Free Port. The Free Port is Trieste’s future.
Free Trieste works to re-establish the rule of law in the Free Territory of Trieste, an independentState with the only international Free Port in the world.