The road rules tests are available in some non-English languages, but all drivers must show ability to read and understand simple English such as is used in highway traffic and directional signs. Please visit your local CSC to schedule an appointment for an oral exam or to schedule an interpreter for the hearing impaired. We offer special assistance for customers with reading disabilities and hearing impairment. Please check the hours of operation before you visit on our website at. To ensure that an applicant has adequate time to complete the knowledge exam, customers must begin taking the written test at least 30 minutes prior to closing. Knowledge exams are given on a walk-in basis at every DDS Customer Service Center statewide.