Temecula Preparatory School is accredited through the Western Association of Schools and Colleges (WASC). The accreditation process includes developing a self-study report and a multi-day, on-site accreditation visit. TPS completed its latest accreditation process in the fall of 2018 and was granted by WASC’s Accrediting Commission for Schools the longest accreditation possible, a six-year accreditation through June 30, 2025.