Cal. Code Regs. tit. 17 § 2624
A person having or suspected of having tuberculosis in a communicable stage shall be considered as fulfilling the requirements of modified isolation as long as he is under adequate medical supervision and observes the instructions issued by the local health officer. The isolation shall be adequate for the protection of persons residing within the household as well as the public.
A person having tuberculosis in a communicable stage, who refuses to observe the instructions of the local health officer and thereby needlessly exposes others to infection, shall be placed in strict isolation at home until such time as the local health officer feels that such isolation is no longer necessary for the protection of the public; and, in the event that such household isolation proves inadequate for the protection of members of the household or community, the patient shall be placed in isolation in quarters designated by the local health officer, until such time as such isolation is no longer necessary for the protection of the public.
The person officially in charge of a sanatorium or other place where tuberculosis patients are cared for shall be responsible for immediately notifying the health officer in whose territory a patient resides whenever such patient having tuberculosis in a communicable stage leaves the institution.
In every case in which a non-communicable tuberculous patient has been placed in a nursing home the local health officer or his deputy shall be responsible for the continued surveillance of such a patient to ensure that he remains non-communicable.
Cal. Code Regs. Tit. 17, § 2624