The International Baccalaureate (IB) Diploma Programme is a two year comprehensive and rigorous academic program for academically ambitious students in Grades 11 and 12. The program originated in Europe in 1968 and was intended to establish a common curriculum and university entry credential for students moving from one country to another. There are currently over 1700 schools in over 120 countries which offer the IB Diploma Program and Charles P. Allen, with the support of the Halifax Regional School Board and the Department of Education, was IB authorized in Spring 2007.

The official IB Diploma Program is two years, beginning in Grade 11.  However, students considering entrance to the IB Diploma program are strongly suggested to enrol in CPA Diploma Preparation courses

Students who take the IB program share the characteristics outlined in the IB Learner Profile.  While it is an academic program, success in IB is the result of a commitment to learning. The IB Program at CPA can be tailored to a variety of students with the option to emphasize sciences, arts, languages and humanities.

The International Baccalaureate aims to develop inquiring, knowledgeable and caring young people who help to create a better and more peaceful world through intercultural understanding and respect. To this end the organization works with schools, governments and international organizations to develop challenging programmes of international education and rigorous assessment. These programmes encourage students across the world to become active, compassionate and lifelong learners who understand that other people, with their differences, can also be right.