South Valley High School participates in an accreditation process developed by Western Association of Schools and Colleges (WASC). The six-year accreditation cycle involves two parts: the school conducting an extensive 18-month reflective self-study into 5 specific areas (school governance, curriculum, instruction, assessment/accountability, and school culture), and periodic visits from a WASC Visiting Committee.
As a result of the WASC visit in the Spring of 2015, and a follow-up visit in the Spring of 2016, South Valley High School was awarded a six-year accreditation status through June 30, 2021.