Health Minister Rachel Stephen-Smith has been named the ACT's new deputy chief minister as part of a major reshuffle following the resignation of Yvette Berry.

Ms Berry resigned from cabinet last week, after the Integrity Commission made "serious corrupt conduct" findings against two senior public servants in her education portfolio.

The Integrity Commission determined the former ACT Education Directorate director-general Katy Haire and Ms Berry's then-chief of staff Joshua Ceramidas "dishonestly provided a back door" for the strategic interests of the CFMEU in a multi-million-dollar contract to revamp Campbell Primary School.

No findings were made against Ms Berry herself, and she'll remain in the Legislative Assembly as a backbencher.

Ms Berry had been the ACT's second in charge for almost a decade – the longest serving deputy chief in the territory’s history.

She was also seen as a potential future leader of ACT Labor, when Mr Barr eventually leaves the position.

In what has been regarded as a three-horse race, Ms Stephen-Smith and Treasurer Chris Steel are now firmly the two frontrunners to lead the party in the future.

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