California Code, Health and Safety Code - HSC § 1795

(a) Notwithstanding any other provision of law, a skilled nursing facility as defined in subdivision (c) of Section 1250, any intermediate care facility, as defined in subdivision (d), (e), (g), and (h) of Section 1250, a congregate living facility, as defined in subdivision (i) of Section 1250, or a hospice facility, as defined in subdivision (n) of Section 1250, shall make reasonable efforts to contact the person named in the resident's admission agreement as the resident's contact person, or the resident's responsible person, within 24 hours after a significant change in the resident's health or mental status.

(b) Notwithstanding any other provision of law, a residential care facility for the elderly, as defined in subdivision (k) of Section 1569.2, shall make reasonable efforts to contact the person named in the resident's admission agreement as the resident's contact person, or the resident's responsible person, within 24 hours after a significant change in the resident's health or mental status.