Copies of current practice tests for the various levels of licensing offered by the Department of Motor Vehicles can be found on the website for each state's department. Online drivers training websites, such as Driver's Prep CA or Driving-Tests.org, also offer practice tests as well as other training materials.
In California, sample written tests for each class of license are available in the Publications section of the DMV website. As of February 2015, the site contained two different practice tests for commercial drivers, known as Class A or Class B licences. Numerous versions of the Class C license practice tests are available in several languages, including English, Spanish and American Sign Language. The site also features practice tests for motorcycle licenses.
Driving-Tests.org contains a fully interactive practice system that tracks the users progress through each question of the test. Multiple choice questions are presented in the main section of the site, with each option represented as a clickable field. Questions also contain hidden hints to help reinforce concepts, though the official test does not contain any hints. Users can take several different types of tests as well as freely restart a test in order to track the overall progress during each attempt.