Cal. Vehicle Code
6300. Recording of security interest
Except as provided in Sections 5905, 5907 and 5908, no security interest in any vehicle
registered under this code, irrespective of whether such registration was effected prior
or subsequent to the creation of such security interest is perfected until the secured
party or his successor or assignee has deposited with the department, at its office in
Sacramento, or at any other office as may be designated by the director, a properly
endorsed certificate of ownership to the vehicle subject to the security interest showing
the secured party as legal owner if the vehicle is then registered under this code, or, if
the vehicle is not so registered, an application in usual form for an original
registration, together with an application for registration of the secured party as legal
owner, and upon payment of the fees as provided in this code.