California Code, Vehicle Code - VEH § 11111.2

Any owner licensed under this chapter who has closed his or her established place of business or any operator or instructor currently or previously licensed under this chapter who no longer resides at the address last filed with the department, may be served with process issued pursuant to Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code by registered mail at that place of business, in the case of an owner, or at that residence, in the case of an operator or instructor, unless the person has notified the department in writing of another address where service may be made.