In 2003, Our Lady of the Lake Roman Catholic School received its initial SACS accreditation. Following the five-year cycle, the school applied for and received re-accreditation through SACS CASI AdvancED's updated process in 2008. During the 2012-2013 school year, OLL was again re-accredited through SACS CASI/AdvancED. The school was awarded an unprecedented number of powerful practices by the visiting team and was recognized as the model school in the Archdiocese of New Orleans for differentiated instruction.
Founded in 1895, SACS CASI accredits over 13,000 schools and school systems throughout the United States and overseas. SACS CASI is an accreditation division of AdvancED. AdvancED is also the parent organization of the North Central Association Commission on Accreditation and School Improvement (NCA CASI) and the National Study of School Evaluation (NSSE.)