Cal. Ins. Code § 38.8

Insurers shall maintain a system for electronically confirming a policyholder’s decision to opt in to an agreement to conduct transactions electronically and a system that will allow the policyholder to electronically opt out of the agreement to conduct business electronically as specified in subdivision (c) of Section 1633.5. The insurer shall maintain the electronic records for the same amount of time the insurer would be required to maintain those records if the records were in written form.