Charleston Collegiate School is accredited by national, regional, and local associations. School accreditation and memberships include the following:

Coalition of Essential Schools

Educational Records Bureau

National Association of Independent Schools

National Center for Independent School Renewal

Palmetto Association of Independent Schools

South Carolina Independent School Association

Southern Association for College Admission Counseling

Southern Association of Colleges and Schools

Southern Association of Independent Schools

Tri-County Admissions Council

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