Cal. Welf. and Inst. Code § 5326.4
The treating physician shall then present to the patient the supplemented form specified under Section 5326.3 and orally, clearly, and in detail explain all of the above information to the patient. The treating physician shall then administer the execution by the patient of the total supplemented written consent form, which shall be dated and witnessed.
The fact of the execution of such written consent form and of the oral explanation shall be entered into the patient's treatment record, as shall be a copy of the consent form itself. Should entry of such latter information into the patient's treatment record be deemed by any court an unlawful invasion of privacy, then such consent form shall be maintained in a confidential manner and place.
The consent form shall be available to the person, and to his or her attorney, guardian, and conservator and, if the patient consents, to a responsible relative of the patient's choosing.
Ca. Welf. and Inst. Code § 5326.4