Is This Montessori School Accredited? How to Check the Campus You're Visiting

Only the organization that reviewed the school can confirm it, and the word Montessori proves nothing by itself because the name “isn’t trademarked” (AMI/USA). Ask the school which body accredited or recognized it, look up the campus and your child’s age level in that body’s own directory, and check the lead teacher’s training as a separate question.

What’s the Difference Between Accredited, Recognized and Member?

School websites use these words loosely, and only some of them involve anyone coming to look at a classroom.

The American Montessori Society (AMS) places schools on a four-stage pathway. A Member School joins for support and resources, and AMS describes no review at that stage. A Verified School has had AMS confirm that it upholds the five core components, and verification terms last three years (AMS Pathway). Those components are trained teachers, mixed-age classes, Montessori materials, child-directed work and uninterrupted work periods (AMS). After a candidate stage comes the Accredited School, which has written a self-study and hosted a visiting team. AMS says accreditation “typically lasts for seven years” (AMS).

AMI/USA, the US branch of the Association Montessori Internationale, recognizes programs one age level at a time. At a Recognized level, every teacher is AMI trained for that level and all AMI standards are met. Affiliated means 50% to 100% of the teachers at that level are AMI trained, and Associated means 50%, or a program still working toward the standards. A consultant visits every three years. Recognition does not assess state licensing, finances or administration (AMI/USA).

Two other names turn up on school sites. MACTE accredits Montessori teacher education programs, so a MACTE logo tells you about a training course and nothing about the school (MACTE). Cognia is a general school accreditor, with no Montessori focus, that reviews public and private schools of all kinds, including those built around a particular teaching approach (Cognia).

What the school says	What it means	Where to check
AMS member	Pays dues to AMS, no review described	AMS school directory
AMS verified	AMS confirmed the five core components, renewed every 3 years	AMS directory, Pathway Stage filter
AMS accredited	Self-study and visiting team, typically 7 years	AMS directory, Pathway Stage filter
AMI recognized, affiliated or associated	Share of AMI-trained teachers at one age level	AMI/USA locator, then ask for that level’s status
MACTE accredited	Applies to a teacher training program	MACTE program directory
Cognia accredited	General school accreditation	Cognia registry
State licensed	Allowed to operate as child care	State inspection reports

How Do I Check the Campus I’m Visiting?

1. Email the school and ask which organization reviewed it, what status it holds, which campus and levels that covers, and when the current term ends. A written reply is easier to check than a logo in the website footer.
2. For AMS, search the AMS school directory by location or school name, then use the AMS Pathway Stage filter, since individual listings don’t always display the stage. If the campus doesn’t come up at the stage the school claims, ask AMS.
3. For AMI, open the AMI/USA member school locator. It shows which age levels a member school serves, such as 3-6 or 6-12, but it doesn’t show recognition status. Ask the school for the status of your child’s level, and contact AMI/USA if the answer stays vague.
4. For Cognia, search the school’s name in the Cognia accreditation registry.
5. For a preschool or daycare room, look up the state license and inspection history. Federal law requires states to post child care monitoring and inspection results online, and Childcare.gov links to each state’s reports.

Does Accreditation Cover Every Classroom and Campus?

Not automatically. AMI/USA gives each program level its own status, “which may or may not be the same as the other levels at the school” (AMI/USA). A school can be Recognized for its 3 to 6 classrooms and Associated for elementary, and the website seal won’t tell you which is which.

If the school runs more than one campus, ask which address the status covers. A status earned by the original building tells you little about a campus that opened later.

How Do I Check My Child’s Teacher’s Training?

The school’s status and the teacher’s training are separate questions, and the second one shapes your child’s day more directly. AMI’s own standard is one teacher per class “holding an AMI diploma, for the appropriate age level” (AMI/USA standards). It’s a fair yardstick anywhere.

Ask the lead teacher which training program they completed, for which age level, and in what year. Then look the program up in MACTE’s directory of accredited programs or the AMI/USA training center locator. MACTE says it has been recognized by the US Secretary of Education since 1995 (MACTE).

What Do the Badges on Montessori School Finder Mean?

Our Verified Montessori badge means an official record, such as the US Department of Education’s private school survey, lists the school as Montessori. A school with no such record can still earn it when its own website describes it as Montessori and other signals agree, such as its name or web address. Each school page lists those signals under Verified By. We don’t visit schools, so the badge confirms the Montessori label and says nothing about accreditation or quality.

The AMS Member and AMI Member badges come from the federal Private School Universe Survey for 2023-24, which asks each school which associations it belongs to (NCES questionnaire). Schools report their own membership, and the answer doesn’t show AMS accreditation or AMI recognition.

The survey covers US private schools teaching at least one grade from kindergarten to 12th, or comparable ungraded classes, and runs every two years (NCES). Public Montessori schools, preschool-only programs and schools outside the US never carry these badges, even when they belong to AMS or AMI. As of November 2026, about 990 of our listings show the AMS Member badge and about 370 the AMI Member badge.

What to Ask the School

• Which organization reviewed your school, what status do you hold, and when does the current term end?
• Does that status cover this campus and the classroom my child would join?
• What Montessori training does my child’s lead teacher hold, for which age level, and from which program?
• Are you also accredited by a general accreditor or licensed by the state, and can I see the latest inspection report?

AMI vs AMS explains how the two big associations train teachers. Once the paperwork checks out, the tour checklist turns to the classroom itself.