The Ministry of Education says an ERO review of a troubled Northland charter school has been delayed - but will ultimately be released.
The ministry has published reports on all the charter schools started up this year - except for Te Kura Hourua ki Whangaruru.
It had earlier promised that the report would be posted on its website, and the Tai Tokerau Principals Federation has challenged the ministry to release it.
A ministry spokesperson said the kura was in the process of responding to the delayed review and had been given extra time to address certain issues.
Katrina Casey said the Whangaruru charter school has had difficulties with delivering education, declining roll numbers and governance and management tension, and the ministry was monitoring its performance.