Cal. Health & Safety Code § 1569.618
(b) At least one administrator, facility manager, or designated substitute who is at least 21 years of age and has qualifications adequate to be responsible and accountable for the management and administration of the facility pursuant to Title 22 of the California Code of Regulations shall be on the premises 24 hours per day. The designated substitute may be a direct care staff member who shall not be required to meet the educational, certification, or training requirements of an administrator. The designated substitute shall meet qualifications that include, but are not limited to, all of the following:
(c) The facility shall employ, and the administrator shall schedule, a sufficient number of staff members to do all of the following: