ACT Deputy Chief Minister Yvette Berry has resigned from the ACT cabinet following the release of an ACT Integrity Commission report that found her former chief of staff and the former head of the Education Directorate engaged in serious corrupt conduct.The report concluded that their actions improperly favoured the interests of a major union during procurement processes.

Although the commission did not find Ms Berry herself had acted corruptly, she accepted political responsibility for the conduct of her staff and announced she was stepping down from cabinet.

In her statement, Ms Berry said she did not want the matter to become a prolonged political spectacle and believed resigning was the appropriate course of action.

She said she was leaving cabinet with her integrity and moral compass intact and expressed confidence that the ACT government had learned from the commission's findings.

Chief Minister Andrew Barr accepted her resignation, apologised to Canberrans for the conduct identified in the report and said safeguards had already been introduced to reduce the likelihood of similar issues occurring again.He described Ms Berry as having been badly let down by those around her while emphasising that ministerial standards required accountability.

Calls for Ms Berry's resignation had intensified after the report's release, with the ACT Liberals, Greens and independent MLAs arguing that ministerial responsibility required her departure.

Berry, who has served as deputy chief minister since 2016 and has been an MLA since 2012, highlighted achievements including free preschool for three-year-olds, free meals and Chromebooks for public school students, secure employment for school cleaners and increased support for elite women's sport.ACT Labor's caucus is expected to elect a new deputy leader and minister, with a cabinet reshuffle to follow.