How do I change the grading basis to A-F (letter grade) or S-N (pass/fail)?
You should first find out if the course can be taken with a different grading basis. Through the second week of the term, you can use the Web registration system to change the grading basis yourself. After the second week of the term, you will have to obtain the permission of the academic department offering the course and submit a Request for Graduate Credit form signed by the department with the new grading basis indicated.
