The Onderwijsinspectie is another word for the Inspectie van het onderwijs. In English it is called the Inspectorate of Education.
The task of the Inspectorate of Education is to monitor the quality of
education in Holland. All educational institutions are regularly
visited and evaluated. On the website of the Inspectorate of Education can be obtained more information. On this part of the website you can search for statistics about schools.