All EAP Tier 1 and 2 and PREP Tier 1 and 2 students who achieve a grade of "C" or better in all corequisite courses of the tier will be permitted to advance to the next tier. Students who achieve a grade of "C-" or lower in one or more corequisite course of any tier will be required to repeat and successfully complete all courses of the tier before advancing to the next tier. All students are permitted to take corequisite tier courses twice. After two unsuccessful attempts to complete corequisite tier courses, the student must retake the EAP Program language assessment with payment of the $250 CDN fee which will indicate appropriate tier placement for the student.