List of Basic Course Sponsors List of Approved Correspondence Courses - This listing is for all self-study / on-line courses which are completed through correspondence and require approval by the Board. This list does NOT include webinar courses as they are considered group live courses / seminars which do not require approval by the Board. Group live courses / seminars are accepted or not accepted based on the Oregon Administrative Rules [OAR 800-015-0020(2)] governing Tax Practitioners. Continuing Education Speakers Examinations