ACC must meet "the highest standards of best practice and service" under a new agreement signed with the government.
The corporation's chairman, three board members and chief executive have resigned amid the turmoil over a huge privacy breach and complaints from claimants about harsh and unfair treatment.
ACC Minister Judith Collins says she's "rebalancing" its responsibilities.
"A critical priority for ACC is to promote and rebuild the trust and confidence of Kiwis in the scheme it manages on their behalf," she said on Thursday.
"Privacy and information security is also a priority and I expect ACC to improve its practices and culture in this area."
Opposition parties have severely criticised the government and ACC for its approach to long-term claimants and the way it has "exited" thousands from the scheme over the last three years.
Ms Collins says under the new service and purchase agreement she expects it to be "sensitive" and provide an "excellent and timely" service that minimises the number of disputes over compensation awards.
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