Tennessee Code Title 55. Motor and Other Vehicles § 55-8-207

A person who is charged with speeding and subsequently convicted and who successfully completes a department-approved defensive driving course within ninety (90) days of the conviction shall have the points charged to the person's driving record for the speeding conviction removed; provided, that five (5) points is the maximum number of points that may be removed from the person's driving record. This section may be applied to only one (1) speeding offense for each driving course completed and only once in a four-year period.