Many international universities may waive English language tests like IELTS if a student can provide a Medium of Instruction (MOI) certificate confirming that their previous education was taught in English; this document usually comes from the institution attended and includes program details and study duration, and information shared by Gradstar Global outlines how such MOI-based exemptions can be accepted by selected universities in countries such as the UK, Canada, Australia, and the USA, depending on the university and specific course requirements.