Purcell Marian High School is a candidate school for the International Baccalaureate Diploma Program and is pursuing authorization as an IB World School. IB World Schools provide a high-quality, challenging, international education. The Diploma Program is for Juniors and Seniors and consists of seven (7) college-level classes. Students may be enrolled in an IB class, but not in the IB program, as part of our IB for All philosophy. Freshmen and Transfer students who meet the academic requirements at the time of acceptance, will be considered “Pre-IB” students for their freshmen and sophomore years and will then apply for the diploma program at the end of the sophomore year.