ERO reviews the education provided for school students in all state schools, private schools and
Kura Kaupapa Māori. It also reviews the education and care provided for children in early childhood education services and kōhanga reo. Reviews are carried out every three years on average, but are more frequent where the performance of a school or service is below standard or there are risks to the education or safety of the students or children. The department also checks that schools are meeting necessary legal requirements. Occasionally, special reviews of individual schools are ordered outside the normal review cycle, which focus on specific areas of concern with a school's management. ERO reports to individual boards of trustees on what they are doing well and where they need to improve. In some cases of poor performance or major risks to students, the department may recommend to the Minister and Secretary of Education some form of intervention to the school's management. Reports on individual schools and early childhood services are freely available to the public via ERO's website. These reviews may take place in Māori-medium, English-medium and Pacific-medium contexts, and additionally has the ability to undertake reviews of private and independent schools, homeschooling, schools and kura with international students, school hostels, and new and merging schools’ readiness to open. The majority of reviews undertaken by the ERO are initiated by Chief Review Officer, however the Minister of Education does also have the ability to request reviews of specific aspects of the education sector under the ERO's remits. The ERO does not hold its own policy mandate, instead fulfilling more of a research and evaluation function but does support relevant policy development based on its operational insights. ==History==