CSF (California Scholarship Federation) is a nationally recognized academic club that emphasizes community service.

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Hosted in room 760 every Tuesday, CSF is one of the largest clubs on campus and a thriving student-run volunteer organization that serves as Castro Valley High School's unofficial Honor Society. As a member of CSF, you join a community of high-achieving students who strive to make a positive impact through volunteering and service. Events and different volunteer opportunities are announced on a weekly basis, where members are able to attend and earn community service hours. Our club fosters a culture that promotes academic excellence, making a difference in our community, and an overall spirit of service.

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