People aged 65 or over may audit one course per semester free of tuition and related fees, with the exception of a one-time $35 application fee. Courses not eligible for Project 65 include those offered through NDSU's program of Distance and Continuing Education.

Project 65 students are encouraged to purchase the textbooks for their courses. The transcript of a student auditing a course will show a grade of 'Audit' for the course, which will not count as credit toward a degree. By definition, an auditor may attend class only as a listener. Students wishing to earn credit toward a degree must be admitted and pay all tuition and fees and complete all assignments and tests.

Students are responsible for course identification and selection and need to obtain a class permit with the audit authorization from the department/instructor. Students should identify themselves as participants in the Project 65 program at the time of registration to the Office of Registration and Records, 110 Ceres (701-231-7981).