Upon completion of fifth grade (the last year of primary school), American children enrolled in the American education system advance to secondary school. Secondary school most commonly consists of a total of seven years, referred to as sixth through twelfth grades. The ninth through twelfth grades are most commonly referred to as high school. Upon completion of twelfth grade, American students are awarded a certificate called the high school diploma. In the USA education system, students must have obtained a high school diploma before they are admitted into college or university. Foreign students who would like to attend an American college or university must have completed coursework that is equivalent to what is taught at an American high school. Foreign students who would like to attend an American high school, need to consider how the high school they select will give them access to the best colleges.