Allow another person to be able to handle any and all automobile, vehicle, or vessel related affairs on your behalf. This includes, title, registration, and any other acts authorized by the principal.
All that is required to make the form valid is to input the following information;
VIN/ID Number
Year Model
Make
License Plate #
Engine Number (if any)
And all the signatures of the person’s involved. Does not need to be witnessed or notarized.
Source – http://apps.dmv.ca.gov/forms/reg/reg260.pdf