Some states have additional regulations on who can call themselves "Montessori". For example, Maryland requires schools using the name "Montessori" to be appro

Some states have additional regulations on who can call themselves "Montessori". For example, Maryland requires schools using the name "Montessori" to be approved by a "Montessori Validating Organization" that the state recognizes. http://www.marylandpublicschools.org/msde/nonpublicschools/ms.htm http://www.marylandpublicschools.org/msde/nonpublicschools/m...