Final answer:
Drivers over 21 years old are not required to display any special symbol on their license plates according to SLP and Examination Permit restrictions.
Step-by-step explanation:
According to the SLP (Special Learner's Permit) and Examination Permit restrictions, drivers over 21 years of age do not need to display any special symbol on license plates. This includes symbols indicating that the driver is a new driver or the vehicle is being operated by a permit holder, which are commonly required for younger, less experienced drivers. Drivers of all ages must ensure that their name and address information is kept up to date with the DMV but they are not required or allowed to display this personal information on their license plates. The age of the driver is also not displayed on the license plates.