Mountain Mission School is a 3rd year member of the Association of Christian Schools International (ACSI) and is currently in pursuit of dual accreditation through ACSI and the Southern Association of Colleges and Schools Council on Accreditation and School Improvement (SACS CASI) division of AdvancEd.

ACSI exists to strengthen Christian schools and equip Christian educators worldwide as they prepare students academically and inspire them to become devoted followers of Jesus Christ.

The AdvancED Accreditation Process, a protocol embraced around the world, is a clear and comprehensive program of evaluation and external review, supported by research-based standards, and dedicated to helping schools, districts and education providers continuously improve.

Mountain Mission School has also been recommended for full accreditation through the National Private Schools Accreditation Alliance ( NPSAG seeks to preserve the uniqueness of the individual private school and its educational programs. They promote the necessity of a voluntary participation in the accreditation process to demonstrate a private school commitment to the educational profession, through an independent third party, without government interference.