To enroll in the University of California, Riverside Extension’s International Education Programs, applicants must meet specific criteria. International students need a high school diploma or equivalent for certificate programs, while some courses may require prior higher education. Proof of English proficiency (TOEFL, IELTS, or equivalent) is mandatory unless the student comes from an English-speaking country. A valid passport and financial documentation demonstrating the ability to cover tuition and living expenses are also required. Certain programs may have additional prerequisites, such as work experience or specific academic backgrounds, so checking the program details is essential.