Approved teaching experience must be at least half-time, contracted employment in Missouri's public schools or in accredited nonpublic schools. Experience will be accepted when earned in nonpublic schools accredited by the following accrediting associations:
- American Association of Christian Schools
- Christian Schools International
- Cognia (previously AdvancEd)
- Independent Schools Association of the Central States
- Middle States Association of Colleges and Schools
- Missouri Accreditation of Programs for Children and Youth
- National Federation of Nonpublic School State Accrediting Association
- National Lutheran School Accreditation
- New England Association of Schools and Colleges
- Northwest Commission on Colleges and Universities
- Southern Association of Colleges and Schools
- Western Association of Schools and Colleges