Osteopathic Medicine (DO) American Association of Colleges of Osteopathic Medicine Application Service (AACOMAS) AACOMAS Calculation System Credit/No Credit and Withdrawals C/NC and Withdrawals are not calculated into the AACOMAS GPA If you have taken C/NC or P/F coursework elsewhere this policy could be different Repeat Grades Only the last instance of a repeated course is calculated in the GPA