Cal. Health & Safety Code § 18090.6

The department may, in lieu of delivery by first-class mail, electronically transmit or receive, or both, a certificate of title pursuant to this part when the department determines that the electronic transmittal or receipt of a certificate of title is economically and technologically feasible and the appropriate state control agencies approve this determination. In making the determination that it is technologically feasible to electronically transmit and receive a certificate of title, the department shall ensure that the system for electronic transmittal and receipt is reasonably safe and secure against fraud and intrusion by unauthorized persons.