Sonoma Country Day School is accredited by the California Association of Independent Schools (CAIS) and the Western Association of Schools and Colleges (WASC) 1988, 1994, 2000, 2006, 2012, 2018. Sonoma Country Day School does not discriminate based on disability, gender, gender identity, gender expression, nationality, race or ethnicity, religion, or sexual orientation in its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administered programs.