The Grade School and High School Departments have been granted Level III re-accreditation by the Philippine Accrediting Association of Schools, Colleges and Universities (PAASCU) on May 17, 2016.
Level III accreditation status is the highest level given to basic education units. This re-accreditation entitles DLSZ to “innovate without need for prior approval provided that the Department of Education (DepEd) Regional Office is duly informed; limited visitation, inspection and/or supervision by DepEd supervisory personnel or representatives for the duration of its Level III accredited status; and the privilege to apply for authority to open learning/distance extension classes; and to participate in transnational education.”
DLSZ passed Level III accreditation in December 2012. This Level III re-accreditation is valid until May 2021.