Potomac's Instructor Refresher Clinic (Jefferson Circuit) This Refresher Clinic is required of Instructors at least once every two years to remain on our active Instructor roster. We can make arrngements for out of region Instructors who drive and instruct with us occasionally. The day consists of classroom sessions and briefings and driving with other instructors, might include steering from the passenger seat, exercises to maintain consistency in instruction. We also invite our Instructor Candidates to participate as part of their on going instruction for the National Instructor day. Instructors who are unable to come to this event, may be able to make arrangements to have a "make up day" at the Instructor and National Instructor day March 31st.