California Code, Health and Safety Code - HSC § 1507.4

(a) Beginning May 1, 2021, and annually thereafter, the department shall collect information and send a report to each county's department of mental health or behavioral health of all licensed adult residential facilities in the county that accept the federal supplemental security rate and accept residents with a serious mental disorder, as defined in Section 5600.3 of the Welfare and Institutions Code, and the number of licensed beds at each facility.

(b) Beginning May 1, 2021, and quarterly thereafter, the department shall send to each county's department of mental health or behavioral health the report of licensed adult residential facilities that closed permanently in the prior quarter, by county, and shall include the number of licensed beds of each facility and the reason for closing. The report shall include cumulative data and closure trends for each county and be based on facilities identified in subdivision (a).

(c) Upon receiving notice that a licensed adult residential facility intends to close permanently, the department shall notify the county mental or behavioral health department within three business days.