Hello Janelle- Thank you for choosing TrafficSchool.com for your traffic safety needs. You can use your Citation number when registering. Courts use either the Case number, Citation number or Docket number to reference your ticket. These are all interchangeable and accepted by the courts throughout California. Please let us know if you have any further questions. TrafficSchool.com-TVS #E1393 appreciates your business. Have a wonderful day!