I asked myself that question at the other meeting, and I did a bit of research to find out what constitutes an educational institution in Quebec.
I think I can give you a definition, based on the summary of the Quebec Department of Education. Educational institutions may be public or private elementary schools, public or private secondary schools, public professional training centres, colleges, CEGEPs, universities and private special schools.
So then, the definition is not restricted to CEGEPs and universities. It includes secondary and elementary schools. The scope of the definition is rather broad.