Opposition parties are split over new appointments to the ACC board, with Labour raising concerns about the woman who will chair the organisation.
ACC Minister Judith Collins announced on Tuesday that Paula Rebstock will take up the role for a three-year term.
Ms Rebstock, who is an existing ACC board member, also chairs Work and Income, chairs the Insurance and Savings Ombudsman Commission, and is deputy chairwoman of the New Zealand Railways Corporation.
She has been ACC's acting chairwoman since June, replacing chairman John Judge after a major privacy breach, when ACC claimant Bronwyn Pullar was sent details of more than 6000 other clients.
Labour's ACC spokesman Andrew Little is alarmed at Ms Rebstock's appointment, calling it "a sharp lurch to the right and a deepening of the disentitlement culture".
"Paula Rebstock's track record demonstrates no empathy or understanding of the social insurance model ACC represents," he said.
Ms Rebstock headed the Government's Welfare Working Group and now the group overseeing the Government's welfare reforms, and is tasked with finding the source of leaks about the Ministry of Foreign Affairs and Trade restructuring.
Mr Little also has concerns about newly appointed board member, Auckland University's associate dean of the faculty of medical health and sciences Professor Des Gorman, who has been a senior medical adviser to ACC for many years.
"[He] has given some of the most retrograde advice on claimants' files I've known. He was the subject of many complaints over his advice about occupational overuse syndrome in the 1990s," Mr Little said.
"These appointments inspire no confidence at all and claimants are entitled to feel uneasy."
The Green Party's Kevin Hague is more optimistic, saying the appointments are an opportunity to steer the corporation back towards the role and principles it was founded on.
"Ordinary New Zealanders don't like the profit-driven, privacy-abandoning organisation that ACC has become.
"Ms Rebstock has a huge responsibility to turn the ACC ship around."
The appointments - that also include Public Trust chairman Trevor Janes and public and medical law expert Kristy McDonald QC - follow the resignations of three board members, and chief executive Ralph Stewart, amidst the privacy scandal.
NZN