Cal. Welf. & Inst. Code § 17732
(a) No more than two children with or without special health care needs shall reside in a specialized foster care home with the following exceptions:
(1) A specialized foster care home may have a third child with or without special health care needs placed in that home provided that the capacity, as determined by the department or county pursuant to Chapter 3 (commencing with Section 1500) of Division 2 of the Health and Safety Code or Article 2 (commencing with Section 16519.5) of Chapter 5 of Part 4 is not exceeded and provided that all of the following conditions have been met:
(2) A licensed small family home may exceed the two-child placement limit and accept children with or without special health care needs up to capacity, as determined by the department pursuant to Chapter 3 (commencing with Section 1500) of Division 2 of the Health and Safety Code, if the conditions in paragraph (1) have been met for both the third foster child and each foster child placed thereafter, and the following additional conditions have been met:
(B) Whenever four or more children are physically present in the facility, the licensee of the small family home has the assistance of a caregiver to provide specialized in-home health care to the children except that: